the branch axes beneath the sessile florets, the dispersal unit being a sessile floret, the internode to the next sessile floret, the pedicel, and the
26 KB (2,165 words) - 18:57, 11 May 2021
presence of such glandular hairs, whether sessile or in depressions or pits (as appropriate, “in pits” or “sessile” may be added for clarification). Inflorescences
270 KB (5,940 words) - 20:46, 31 January 2022
sometimes distichous (Malvoideae), usually petiolate, sometimes subsessile or sessile (Malvoideae), stipulate (usually well developed), simple (compound in Abelmoschus);
8 KB (848 words) - 17:34, 9 December 2022
stipulelike glands at base of petioles and pedicels]; petiolate, sessile, or subsessile (sessile auriculate or not, sometimes amplexicaul); blade margins entire
95 KB (3,708 words) - 23:32, 5 November 2020
subshrubs; eglandular. Trichomes usually short-stalked, subsessile, or sessile, sometimes long-stalked, stellate, scalelike, subdendritic, or forked, sometimes
2 KB (204 words) - 23:37, 5 November 2020
biennials, or perennials [subshrubs]; eglandular. Trichomes stalked or sessile, usually stellate, dendritic, cruciform, or forked, sometimes mixed with
2 KB (193 words) - 23:32, 5 November 2020
opposite, sometimes mostly whorled or alternate; usually petiolate, sometimes sessile; margins entire or dentate to pinnatifid or palmatifid (faces often gland-dotted)
24 KB (1,707 words) - 21:07, 5 November 2020
Perennials or, rarely, biennials; eglandular. Trichomes often short-stalked, sessile, or subsessile, usually forked or dendritic, rarely malpighiaceous, sometimes
2 KB (201 words) - 23:34, 5 November 2020
basal, or basal and cauline; opposite, alternate, or both; petiolate or sessile; blades cordate, deltate, elliptic, lanceolate, linear, rhombic, orbiculate
16 KB (613 words) - 21:10, 5 November 2020
rarely whorled, connate proximally, petiolate (basal leaves) or often sessile, not stipulate; blade linear or subulate to ovate, not succulent or rarely
5 KB (588 words) - 23:10, 5 November 2020
umbels, panicles, or spikes, or flowers solitary, flowers pedicellate or sessile. Flowers bisexual, sometimes unisexual, inconspicuous or showy, radially
10 KB (507 words) - 22:48, 5 November 2020
opposite, sometimes whorled or alternate; usually petiolate, sometimes sessile; blade margins entire, toothed, lobed, or dissected. Heads homogamous (usually
13 KB (623 words) - 21:08, 5 November 2020
short-stipitate- to stipitate-glandular > 34 33 Petioles sessile-glandular; bracteole margins usually sessile-glandular to short-stipitate-glandular, except stipitate-glandular
25 KB (651 words) - 00:00, 6 November 2020
dendritic [subdendritic], sometimes absent. Cauline leaves petiolate or sessile; blade base auriculate or not, margins entire, dentate, or pinnately lobed
2 KB (232 words) - 23:30, 5 November 2020
variously lobed or parted, or compound, all petiolate or distal leaves sessile; cauline leaves alternate (rarely a distal pair opposite in Ranunculus sect
12 KB (580 words) - 22:49, 5 November 2020
Leaves: basal usually withering by flowering, usually petiolate, sometimes sessile or subsessile, blades 1-nerved, spatulate to oblanceolate, elliptic, or
3 KB (333 words) - 20:58, 5 November 2020
members of each unit usually with pedicels of different lengths or 1 spikelet sessile. Glumes usually 2, equal or unequal, shorter or longer than the adjacent
10 KB (1,081 words) - 18:55, 11 May 2021
alternate to opposite or whorled, simple, without stipules, petiolate or sessile; blade unlobed or with 1-3 odd-pinnate, subpalmate, or palmate orders of
9 KB (699 words) - 22:47, 5 November 2020
spike of unisexual, apetalous, sessile flowers, each subtended by a floral bract), and a peduncle. A catkin may be sessile on a branch or borne on a relatively
32 KB (4,205 words) - 23:31, 5 November 2020
absent); involucel bracteoles absent. Pedicels present or rarely flowers sessile. Flowers bisexual or seldom unisexual, sometimes inconspicuous; perianth
6 KB (634 words) - 23:15, 5 November 2020
or sometimes opposite or whorled, either convolute or duplicate, simple, sessile or petiolate; stipules absent; blade articulate or not, plicate or conduplicate
37 KB (2,535 words) - 22:11, 5 November 2020
or simple. Cauline leaves (rarely absent), usually petiolate, sometimes sessile; blade (simple or compound), base auriculate or not, margins entire or dentate
2 KB (206 words) - 23:35, 5 November 2020
solitary in areoles (rarely several), radially symmetric (rarely bilateral), sessile, broadly salverform, urceolate, funnelform, or long tubular; flower tube
5 KB (662 words) - 22:57, 5 November 2020
petiolate or sessile; basal usually rosulate, petiolate, blade margins usually entire, sometimes repand to pinnatifid; cauline petiolate or sessile, blade margins
34 KB (1,355 words) - 20:43, 12 April 2023
at least 1 spikelet in each group usually sessile; pedicels shorter or only a little longer than the sessile spikelets (FNA 25:602) Andropogoneae 4 Spikelets
28 KB (1,872 words) - 17:21, 11 May 2021
Krapovickasia, Malvella, Meximalva, and some species of Sida, subsessile or sessile in some Herissantia, Horsfordia, Sida, Sidastrum, and Sphaeralcea; blade
17 KB (551 words) - 16:48, 12 February 2024
caducous, relatively small, or absent (tribes Epilobieae and Onagreae); sessile or subsessile to petiolate; blade margins usually entire, toothed, or pinnately
12 KB (806 words) - 17:42, 2 December 2022
proximal, sometimes distal, petioles often ± winged, clasping, ciliate) or sessile; blades (often purplish abaxially, 1, sometimes to 3-nerved) cordate to
57 KB (1,333 words) - 20:35, 6 November 2020
non-Kranz. Inflorescences usually spikes or spikelike racemes, with 1-5 sessile or subsessile spikelets per node, occasionally panicles, sometimes with
14 KB (1,219 words) - 17:23, 11 May 2021
opposite, or opposite (proximal) and alternate, or alternate; petiolate or sessile; blades usually 3-nerved (1-nerved in H. eggertii, H. smithii, and H. maximiliani)
28 KB (884 words) - 21:11, 5 November 2020
pubescent, with spikelets in heterogamous sessile-pedicellate pairs (the terminal spikelets sometimes in triplets of 1 sessile and 2 pedicellate spikelets), apices
11 KB (573 words) - 18:57, 11 May 2021
persistent or tardily deciduous, alternate, partially opposite, or opposite, sessile or petiolate; blade entire, serrate, or lobed, with venation either of Kranz-type
42 KB (793 words) - 22:59, 5 November 2020
sometimes appearing whorled, bases connate or not, sometimes petiolate or often sessile, stipulate; stipules ovate or deltate to lanceolate or bristlelike, scarious;
4 KB (396 words) - 23:07, 5 November 2020
plants in whorl of 3, uniformly green or mottled, foliaceous, petiolate or sessile, venation palmate-reticulate, with 3–5 major veins, ovate or obovate to
25 KB (865 words) - 22:18, 5 November 2020
immediately subtending calyx occasionally present. Pedicels present, or flowers sessile. Flowers bisexual or occasionally unisexual, radially symmetric; perianth
22 KB (1,113 words) - 23:09, 5 November 2020
from elongate rhizomes. Leaves cauline, opposite, simple or compound, sessile or petiolate. Leaf blade undivided or 1-3-pinnately or -ternately compound;
6 KB (533 words) - 22:49, 5 November 2020
flowers each subtended by 2, opposed bracts. Flowers usually pedicellate [± sessile]; perianth actinomorphic or zygomorphic, petaloid, with 2 equal or unequal
10 KB (643 words) - 22:16, 5 November 2020
simple; ovules 8-20 per pistil; style present. Fruits follicles, aggregate, sessile, ± curved-cylindric, sides prominently veined or not; beak terminal, straight
5 KB (569 words) - 22:49, 5 November 2020
mostly basal; alternate [opposite, whorled]; usually petiolate, sometimes sessile; margins entire or dentate to pinnatifid (often gland-dotted, especially
74 KB (1,788 words) - 20:57, 5 November 2020
usually alternate, occasionally opposite, lacking stipules, petiolate or sessile, sometimes reduced to small scales, or fleshy; blade linear to broadly triangulate
14 KB (879 words) - 22:58, 5 November 2020
petiolate or sessile; basal rosulate or not, petiolate or sessile, blade margins entire or dentate to lyrate-pinnatifid; cauline usually sessile, rarely petiolate
18 KB (725 words) - 23:30, 5 November 2020
radially or bilaterally symmetric (flower curved and/or the ovary flattened), sessile, rotate, cup-shaped, or salverform; flower tube epigynous, short adnate
5 KB (602 words) - 22:57, 5 November 2020
(leaflets petiolulate, subsessile, or sessile); cauline (usually alternate, rarely opposite or whorled) petiolate or sessile, blade (base cuneate, attenuate
17 KB (925 words) - 23:35, 5 November 2020
[shrubs]; eglandular. Trichomes absent or simple. Cauline leaves petiolate or sessile; blade base auriculate or not, margins entire, dentate, serrate, or pinnately
3 KB (242 words) - 23:35, 5 November 2020
present before flowering, often absent later, alternate; stipules absent; sessile or petiolate; blade margins toothed to pinnatifid, often irregularly so
18 KB (1,909 words) - 17:56, 2 December 2022
or occasionally whorled, connate proximally, petiolate (basal leaves) or sessile (most cauline leaves); blade 1–5-veined, linear to obovate or spatulate
29 KB (1,186 words) - 00:23, 15 November 2022
estipulate, sometimes stipulate (Tuberaria), stipules caducous, petiolate or sessile; blade 1- or 3- [5-]veined from base, not lobed, sometimes scalelike, margins
5 KB (404 words) - 23:23, 5 November 2020
Trillium petiolatum, Trillium recurvatum, Trillium reliquum, Trillium sessile, Trillium stamineum, Trillium underwoodii, Trillium viride, Trillium viridescens
2 KB (202 words) - 22:12, 5 November 2020
can be stalked or sessile. Glandularity is not always obvious; glands are sometimes hidden by other hairs or can be very small. Sessile glands can be less
28 KB (2,139 words) - 22:34, 14 December 2021
cauline, sometimes cauline absent; petiolate or sessile; basal usually rosulate, usually petiolate, rarely sessile, blade margins usually entire or toothed,
78 KB (1,810 words) - 23:33, 5 November 2020
low to tall. Leaves with Kranz anatomy, usually alternate, petiolate or sessile; blade variously shaped, margin entire, hastately lobed, or variously dentate
4 KB (412 words) - 23:00, 5 November 2020
slits; pollen ejected explosively; pistillode 1. Pistillate flowers usually sessile; tepals 2-4, hypogynous, greenish or reddish, distinct or connate; staminodes
7 KB (600 words) - 22:53, 14 January 2021
shrubs]; eglandular. Trichomes simple or absent. Cauline leaves petiolate or sessile; blade base auriculate or not, margins usually entire, dentate, or pinnately
2 KB (160 words) - 23:37, 5 November 2020
unbranched to sparsely branched. Leaves cauline, alternate; stipules absent; sessile or petiolate, petiole usually shorter than blade; blade margins entire or
15 KB (533 words) - 17:51, 2 December 2022
basal and/or cauline; usually alternate, rarely opposite; petiolate or sessile (bases often decurrent onto stems); blade margins usually entire, rarely
21 KB (1,721 words) - 20:53, 5 November 2020
shrubs, 2–45(–75) cm. Leaves cauline; opposite or alternate; petiolate or sessile; blades mostly deltate to ovate or lanceolate overall, sometimes cordate
4 KB (315 words) - 21:14, 5 November 2020
basal (persistent or not by flowering) and cauline; petiolate (proximal) or sessile (proximal and distal, latter sometimes subpetiolate); proximal blades sometimes
13 KB (793 words) - 20:33, 8 December 2021
simple), not jointed, not armed, not fleshy. Leaves alternate, petiolate or sessile, not fleshy; blade linear, oblong, lanceolate, ovate, triangular, trullate
15 KB (502 words) - 22:58, 5 November 2020
polygamodioecious; involucres (except 1 at fork of node in some) typically sessile, or if pedunculate throughout then leaves neither roundish and plants from
13 KB (1,373 words) - 21:23, 9 February 2021
Leaves deciduous to persistent, vestigial or absent, spirally alternate, sessile (petiolate to subsessile in Pereskia and several genera outside the flora)
32 KB (1,968 words) - 20:34, 6 November 2020
septate or not septate. Leaves basal, submersed, floating, or emersed, sessile or petiolate, sheathing proximally; blade with translucent markings of dots
5 KB (384 words) - 21:31, 5 November 2020
dendroid]. Leaves opposite [alternate or whorled], simple, estipulate, sessile, subsessile, pseudopetiolate, or petiolate; blade with pellucid glands and/or
6 KB (558 words) - 23:19, 5 November 2020
Trichomes stalked or sessile, stellate, dendritic, or forked, sometimes mixed with simple ones. Cauline leaves usually sessile, rarely petiolate or subsessile;
2 KB (228 words) - 23:35, 5 November 2020
bisexual and unisexual, or unisexual only, usually pedicellate, occasionally sessile; perianth actinomorphic or zygomorphic, often very showy; tepals 6, distinct
39 KB (3,176 words) - 22:13, 5 November 2020
twisted so as to appear 1- or 2-ranked, or fascicled, linear to needlelike, sessile to short-petiolate; foliage leaves either borne singly (spirally) on long
9 KB (768 words) - 21:21, 5 November 2020
simple, annual or long-lived, in terminal rosettes or occasionally cauline, sessile or occasionally pseudo-petiolate; blade linear, lanceolate, oblanceolate
8 KB (739 words) - 22:17, 5 November 2020
(often crowded, axillary leaf fascicles sometimes present); petiolate or sessile; blades (green to grayish; midnerves obscure to prominent, sometimes with
19 KB (930 words) - 21:05, 5 November 2020
unisexual, staminate and pistillate usually on same plant, sessile or pedicellate (sometimes sessile in pistillate flowers of Myriophyllum); perianth and androecium
5 KB (511 words) - 11:31, 9 May 2022
2–12 or more years, terete or ± 2–3-angled and rounded on abaxial surface, sessile, sheathed at base by 12–15 overlapping scale leaves, these (at least firmer
26 KB (1,313 words) - 21:22, 5 November 2020
Perennials, 5–50(–90) cm, sericeous, tomentose, or glabrous, sometimes sessile- or stipitate-glandular (taproots woody, caudices often short, branched)
9 KB (600 words) - 21:06, 5 November 2020
usually scarious; involucel bracteoles absent. Pedicels present or flowers sessile. Flowers bisexual or sometimes unisexual (the plant then dioecious or polygamodioecious);
4 KB (444 words) - 23:11, 5 November 2020
usually basal and cauline (basal absent in L. fremontii); petiolate or sessile; basal rosulate or not, petiolate (or petiole undifferentiated from blade)
23 KB (1,130 words) - 23:37, 5 November 2020
convolute, tubular, sheathing stem and young inflorescences. Submersed leaves sessile or petiolate; stipules either free from or adnate to base of leaf blade
18 KB (1,124 words) - 21:31, 5 November 2020
petiolate or sessile; basal rosulate or not, petiolate, blade margins usually entire or dentate, rarely lyrate-pinnatifid; cauline usually sessile, rarely shortly
68 KB (1,988 words) - 23:34, 5 November 2020
subshrubs [shrubs]; eglandular. Trichomes sessile, stellate or malpighiaceous. Cauline leaves petiolate or sessile; blade base not auriculate, margins entire
2 KB (167 words) - 23:36, 5 November 2020
Leaves cauline; mostly opposite (distal sometimes alternate); petiolate or sessile; blades mostly lanceolate to oblanceolate overall, usually 1–3-pinnately
7 KB (462 words) - 20:35, 6 November 2020
petiolate; cauline alternate, proximal leaves petiolate, distal subsessile or sessile, sometimes clasping (in P. somniferum); blade unlobed or 1-3× pinnately
8 KB (560 words) - 22:49, 5 November 2020
woolly-tomentose, sometimes stipitate- or sessile-glandular). Leaves basal and cauline or mostly cauline; alternate; usually sessile; blades mostly narrowly lanceolate
13 KB (487 words) - 20:54, 5 November 2020
other genera]), simple or compound, stipulate [estipulate], petiolate or sessile; blade unlobed or lobed. Inflorescences 1(–4)[–5]-flowered, axillary from
8 KB (963 words) - 23:19, 5 November 2020
or sessile, stellate, forked, dendritic, malpighiaceous, or simple, rarely absent. Cauline leaves (sometimes absent), usually petiolate or sessile, sometimes
2 KB (183 words) - 23:36, 5 November 2020
absent or minute, spheric. Trophophores ascending to perpendicular to stem, sessile or stalked; blades linear, oblong, or deltate, simple to 5-pinnate, 4–25
16 KB (461 words) - 20:36, 6 November 2020
Treatment on page 507. Trees and shrubs, deciduous. Winter buds stipitate or sessile, with either 2–3 valvate scales (stipules) or few to many imbricate scales
11 KB (1,145 words) - 22:52, 5 November 2020
inflorescence. Leaves of 2 types, sessile and petiolate; stipule marcescent, apex truncate, associated with petiolate leaves only; sessile leaves submersed or rarely
4 KB (359 words) - 22:10, 5 November 2020
shrubs, evergreen or deciduous, shrubs sometimes rhizomatous. Winter buds sessile, with few to many imbricate scales (2 valvate scales enclosing imbricate
8 KB (720 words) - 22:50, 5 November 2020
stipitate-glandular at least distally. Leaves: basal withering by flowering, usually sessile, sometimes subpetiolate, blades usually 3-nerved, spatulate or obovate to
5 KB (624 words) - 20:58, 5 November 2020
Leaves fleshy, sessile; blade linear to narrowly obovate, glabrous except in axils Blutaparon 13 Leaves not fleshy, petiolate or sessile; blade ovate to
8 KB (586 words) - 23:00, 5 November 2020
surface, peltate, water-absorbing. Inflorescences terminal or lateral, sessile to scapose, simple or compound; bracts usually present, conspicuous. Flowers
4 KB (354 words) - 21:31, 5 November 2020
abaxial surfaces sometimes glaucous, glabrous or pubescent, eglandular, sessile-, or stipitate-glandular, adaxial dull or lustrous, glabrous, rarely pubescent
15 KB (824 words) - 23:54, 5 November 2020
branched distally. Leaves basal and cauline; petiolate or sessile; basal rosulate, petiolate or sessile, blade margins usually entire or dentate to denticulate
10 KB (679 words) - 23:32, 5 November 2020
2-ranked; blade sessile or rarely petiolate [petiolate]. Inflorescences terminal or terminal and axillary, pairs of cymes, cymes sessile, umbel-like, contracted
14 KB (616 words) - 21:29, 5 November 2020
present; corms absent; tubers white to brown, smooth. Roots septate. Leaves sessile or petiolate; petiole terete to triangular; blade with translucent markings
9 KB (447 words) - 21:31, 5 November 2020
alternate, sometimes opposite or in whorls of 3–5[–6], ± alike, petiolate or sessile, not connate basally; blade linear to orbiculate or spatulate, terete, semiterete
17 KB (710 words) - 23:43, 5 November 2020
sometimes mostly basal; alternate [opposite]; usually petiolate, sometimes sessile; margins usually 1–3-palmately or -pinnately lobed (ultimate segments usually
18 KB (990 words) - 20:56, 5 November 2020
cm. Leaves basal, basal and cauline, or cauline; alternate; petiolate or sessile; blades mostly elliptic, filiform, lanceolate, linear, oblong, ovate, or
8 KB (488 words) - 21:07, 5 November 2020
(simple or branched). Leaves basal and/or cauline; alternate; petiolate or sessile (bases sometimes clasping); blades subpalmately to pinnately nerved, mostly
25 KB (1,128 words) - 20:59, 5 November 2020
(distal often alternate) or mostly alternate, rarely whorled; petiolate or sessile; blades (often 3- or 5-nerved) orbiculate or deltate to lanceolate or linear
6 KB (429 words) - 21:11, 5 November 2020
parted, margins entire or crenate, never serrate; cauline leaves sessile to nearly sessile or sometimes with much shorter petioles than basal leaves, blades
9 KB (342 words) - 22:45, 5 November 2020
cm. Leaves basal and cauline or mostly cauline; alternate; petiolate or sessile; blades mostly deltate, elliptic, lanceolate, linear, lyrate, oblanceolate
4 KB (390 words) - 21:14, 5 November 2020
inflorescences usually stiff, with terminal cupule and sometimes 1-several sessile, lateral cupules. Staminate flowers: sepals connate; stamens (2-)6(-12)
11 KB (1,303 words) - 22:52, 5 November 2020
us. Leaves cauline, alternate (opposite in P. humifusum), petiolate or sessile; ocrea with distal part persistent, often hyaline, white or silvery, 2-lobed
6 KB (649 words) - 23:08, 5 November 2020
mostly cauline; often proximally opposite, distally alternate; petiolate or sessile; blades usually 3-lobed, ultimate margins entire, toothed, or lobed. Heads
4 KB (330 words) - 21:14, 5 November 2020
dense and imbricate, with or without basal and/or mucilage canals. Strobili sessile or stalked, upright, nodding, or pendent. Sporangia solitary, adaxial near
7 KB (459 words) - 19:57, 11 May 2022
called spikes, with 3 spikelets at each node, central spikelets usually sessile, sometimes pedicellate, pedicels to 2 mm, lateral spikelets usually pedicellate
10 KB (811 words) - 17:23, 11 May 2021
margins; disarticulation in the rames, beneath the sessile spikelets. Spikelets dorsally compressed; sessile spikelets with 2 florets; lower glumes rounded
8 KB (436 words) - 18:57, 11 May 2021
alternate, sessile; blade ovate to linear, small, entire. Staminate flowers in axillary glomerules. Fruiting bracteoles monomorphic, sessile or subsessile
2 KB (162 words) - 23:00, 5 November 2020
(except sometimes in T. ovatum). Flower pedicellate except subsessile or sessile in T. pusillum var. virginianum. Petals wide-spreading, white, reddish purple
2 KB (200 words) - 22:18, 5 November 2020
alternate or nearly opposite, submersed or both submersed and floating, sessile or petiolate; sheath not persisting longer than blade, not leaving circular
7 KB (794 words) - 21:32, 5 November 2020
rosettes, usually withering by flowering); proximal opposite, most alternate; sessile; blades oblanceolate to linear or lance-linear, usually pinnatifid or toothed
9 KB (579 words) - 21:13, 5 November 2020
infrequently abruptly reduced and pinnalike; pinnae entire to deeply pinnatifid, sessile or short-stalked; costae grooved adaxially; buds absent or uncommonly present
12 KB (521 words) - 21:23, 5 November 2020
(indehiscent, nutlike capsule in C. heterandra), 4 or 8-grooved or smooth; sessile or subsessile to long-pedicellate. California, nw Mexico. Species 15 (15
3 KB (339 words) - 11:32, 9 May 2022
Hemiscola and Tarenaya); glabrous or glandular-pubescent, hairs stalked or sessile (producing glucosinolates). Stems usually erect, sometimes spreading or
9 KB (756 words) - 23:32, 5 November 2020
spikes, or panicles, or flowers solitary or in pairs, flowers pedicellate or sessile. Flowers bisexual, inconspicuous or showy, radially symmetric; stipitate
7 KB (559 words) - 22:51, 5 November 2020
or sessile; basal (often withered by flowering), rosulate, petiolate, blade (1–3-pinnate), margins entire or toothed; cauline petiolate or sessile, blade
12 KB (964 words) - 23:36, 5 November 2020
usually alternate [opposite]; usually petiolate (rarely peltate), sometimes sessile; margins entire or dentate to pinnatifid (leaves sometimes becoming spines
18 KB (925 words) - 20:59, 5 November 2020
(sometimes inflated). Leaves basal and cauline; petiolate, subsessile, or sessile; basal rosulate or not, petiolate, blade margins entire, dentate, sinuate
10 KB (712 words) - 23:30, 5 November 2020
Mentioned on page 226, 235, 242. Plants not scapose; pubescent, trichomes sessile, medifixed, appressed, 2-rayed (malpighiaceous) or 3–5(–8)-rayed (stellate)
11 KB (710 words) - 23:36, 5 November 2020
sometimes naked below; rames with numerous sessile-pedicellate spikelet pairs and a terminal triad of 1 sessile and 2 pedicellate spikelets, internodes slender
6 KB (445 words) - 18:57, 11 May 2021
mostly opposite (distal sometimes alternate), rarely whorled; petiolate or sessile; blades (often pinnately or palmately lobed, sometimes compound), or lobes
7 KB (547 words) - 21:12, 5 November 2020
denticulate, ciliolate, or crenulate. Inflorescences terminal, scapose or sessile umbels or solitary flowers; bracts usually present. Flowers bisexual, homostylous
9 KB (958 words) - 23:44, 5 November 2020
medifixed). Leaves basal or basal and cauline; alternate; petiolate or sessile; blades filiform, linear, lanceolate, ovate, elliptic, oblong, oblanceolate
11 KB (1,203 words) - 20:57, 5 November 2020
sometimes simple, rarely absent. Cauline leaves usually petiolate, sometimes sessile; blade base not auriculate, margins usually pinnatisect or dentate, sometimes
2 KB (194 words) - 23:36, 5 November 2020
rhizomes. Leaves basal and cauline, proximal leaves petiolate, distal leaves sessile; cauline leaves alternate. Leaf blade 1-3×-ternately compound, leaflets
9 KB (459 words) - 22:47, 5 November 2020
Leaves: basal withering by flowering, proximalmost cauline petiolate or sessile, usually withering by flowering, proximal usually largest, not 3-nerved
4 KB (225 words) - 14:37, 28 February 2023
palmate-netted. Inflorescences spadices, each with 3–900 usually tightly grouped, sessile flowers, subtended by spathe; spathe rarely absent, persistent (sometimes
10 KB (1,075 words) - 21:31, 5 November 2020
roots. Leaves basal and cauline, proximal leaves petiolate, distal leaves sessile; cauline leaves alternate. Leaf blade 1-4×-ternately or -pinnately compound;
14 KB (849 words) - 22:49, 5 November 2020
turions absent. Leaves nearly opposite or appearing whorled, submersed, sessile; sheath not persisting longer than blade, not leaving scar when shed, not
3 KB (246 words) - 21:29, 5 November 2020
petiole length 28–60% blade, winged, glabrous or pubescent, distally variably sessile-glandular; blade mid to dark green or blue-green, matte, usually ± rhombic
14 KB (936 words) - 23:53, 5 November 2020
triphylla); cauline leaves, if present, alternate, opposite, or whorled, ± sessile or gradually or abruptly narrowed basally into broad, clasping petiole;
9 KB (481 words) - 23:02, 5 November 2020
distally, (glabrous or pubescent). Leaves basal and cauline; petiolate or sessile; basal rosulate or not, petiolate, blade margins usually entire, dentate
10 KB (556 words) - 23:31, 5 November 2020
often deciduous, usually dark reddish green; usually petiolate, sometimes sessile; blade usually reduced distally, usually linear to lanceolate, oblong, or
23 KB (1,468 words) - 17:46, 2 December 2022
filaments filiform (to slightly clavate in T. heliophilum). Achenes sessile to nearly sessile. North America, Mexico. Species 25 (11 in the flora). None. Thalictrum
2 KB (142 words) - 22:50, 5 November 2020
(5–)20–150 cm. Leaves mostly basal or basal and cauline; alternate; petiolate or sessile; blades deltate to lanceolate overall, usually 1–2-pinnately or palmati-pinnately
3 KB (300 words) - 21:14, 5 November 2020
perennial. Leaf blades glabrous or farinose. Inflorescences dense glomerules sessile on terminal or axillary spikes. Flowers: perianth segments 3–5, stamens
2 KB (141 words) - 22:58, 5 November 2020
subopposite, or alternate (sometimes all conditions on one plant); petiolate or sessile; blades (1- or 3-nerved) deltate, elliptic, linear, ovate, or rhombic, sometimes
7 KB (387 words) - 21:10, 5 November 2020
persistent, distal to pistillate heads, sessile, proximal ones often subtended by foliaceous bract; pistillate heads sessile or peduncled, axillary or supra-axillary
7 KB (789 words) - 21:31, 5 November 2020
basally fused bracteoles subtending a sporangiophore bearing 2–10(–15) sessile to long-stalked, bilocular, apically dehiscent, pollen-producing microsporangia
4 KB (480 words) - 21:25, 5 November 2020
(rarely subopposite distally) [opposite]; usually petiolate, sometimes sessile (or petioles winged); margins usually ± dentate, sometimes entire [lobed
7 KB (548 words) - 20:50, 5 November 2020
disarticulation in the rame axes, below the sessile spikelets. Spikelets somewhat dorsiventrally compressed. Sessile spikelets with 2 florets; glumes exceeding
9 KB (671 words) - 18:57, 11 May 2021
unbranched or branched. Leaves basal and, sometimes, cauline; petiolate or sessile; basal rosulate, petiolate, blade margins entire, sinuate, dentate, or,
7 KB (468 words) - 19:49, 2 December 2021
gland-dotted (sessile or slightly sunken in pits), sometimes stipitate-glandular, rarely eglandular, often resinous. Leaves mostly cauline; alternate; sessile; blades
7 KB (461 words) - 20:58, 5 November 2020
some Cirsium spp.). Leaves basal and/or cauline; alternate; ± petiolate or sessile; (leaf bases often decurrent on stems) margins usually lobed to dissected
11 KB (727 words) - 17:16, 10 May 2024
mostly cauline; mostly opposite (Lasthenia) or mostly alternate; usually sessile, sometimes obscurely petiolate; blades (often 1–2 times pinnately lobed)
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throughout. Leaves heterophyllous, juvenile usually opposite, horizontal, sessile, blade base ± cordate, surfaces glaucous, adult usually alternate, vertical
8 KB (511 words) - 23:49, 2 December 2022
cauline (sometimes withering and sparse or absent at flowering); alternate; sessile or petiolate; blades 1- or 3-nerved, linear, lanceolate, ovate, oblong,
14 KB (835 words) - 20:35, 6 November 2020
prostrate, unbranched or branched. Leaves basal and/or cauline; petiolate or sessile; basal (usually withered early), rosulate or not, petiolate, blade margins
15 KB (1,038 words) - 23:36, 5 November 2020
tuberoids ellipsoid-ovoid. Stems simple. Leaves ephemeral, 2–6, basal; blade sessile, lanceolate to oblanceolate; cauline bracts ovate to linear-lanceolate.
8 KB (369 words) - 22:12, 5 November 2020
basally branched. Leaves basal and cauline; alternate; ± petiolate (basal) or sessile (usually appressed to ascending); blades usually 1-nerved, sometimes 3-
21 KB (653 words) - 21:09, 5 November 2020
of clasping, distichous leaf bases. Leaves 2–16, deciduous or evergreen, sessile, rarely petiolate; blade narrowly to widely liguliform or oblanceolate,
11 KB (866 words) - 22:15, 5 November 2020
ovoid, terete to weakly 4-angled dehiscent nearly throughout their length; sessile. Seeds numerous, in (1 or) 2 rows per locule, prismatic and angled, narrowly
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brown to black or bicolored with dark central stripe; ultimate segments sessile or subsessile, usually adnate to midrib. > 8 7 Blades without white or yellow
12 KB (634 words) - 21:23, 5 November 2020
opposite (distal sometimes alternate) or mostly alternate; petiolate or sessile; blades usually elliptic, filiform, lanceolate, linear, or ovate, often
7 KB (477 words) - 21:13, 5 November 2020
leaf axils, bilaterally [radially] symmetric, usually pedicellate, rarely sessile, pedicel usually not winged; perianth and androecium hypogynous [perigynous];
11 KB (1,157 words) - 23:52, 2 December 2022
basal and proximal cauline petiolate, sometimes sessile, rarely short-petiolate (P. pumilus); cauline sessile or short-petiolate, blade ovate, deltate-ovate
14 KB (649 words) - 20:31, 5 November 2020
dimorphic, emergent and submerged leaves dissimilar; stipules usually absent; sessile, subsessile, or petiolate; blade membranous [leathery], venation brochidodromous
9 KB (801 words) - 23:41, 2 December 2022
pairs, distalmost sometimes alternate and usually smaller); petiolate or sessile; blades mostly cordate, deltate, elliptic, lanceolate, linear, oblanceolate
12 KB (567 words) - 21:15, 5 November 2020
petiolate, sometimes short-petiolate (P. immanifestus, P. lentus); cauline sessile, sometimes short-petiolate, blade obovate, ovate, spatulate, trullate, oblanceolate
12 KB (507 words) - 20:31, 5 November 2020
compound in Cyclanthera, Momordica), alternate, estipulate, petiolate (sessile or subsessile in Sicyos); blade unlobed or palmately, pedately, or pinnately
19 KB (1,336 words) - 23:19, 5 November 2020
puberulent to tomentose and stipitate- or sessile-glandular, sometimes glabrous. Leaves cauline, alternate; petiolate or sessile; blades mostly elliptic, lanceolate
9 KB (544 words) - 20:56, 5 November 2020
(basal rosettes sometimes withering by flowering); alternate; petiolate or sessile; blades 1-nerved, ovate or obovate to lanceolate, linear, or subulate (bases
8 KB (524 words) - 20:58, 5 November 2020
spikelets per inflorescence. The spikelets in the individual cymules may be sessile, with the cymules forming dense glomerules of spikelets, or the lateral
14 KB (661 words) - 21:39, 5 November 2020
opposite, sessile or petiolate; blade lanceolate to ovate, ovate-rhombic, or obovate-rhombic, margins entire. Inflorescences axillary or terminal, sessile or
4 KB (237 words) - 23:01, 5 November 2020
nonflowering individuals. Leaves alternate or whorled proximally in some species, sessile; blade linear to ± ovate; nonflowering individuals with single elliptical
12 KB (541 words) - 22:14, 5 November 2020
rhizomatous, evident stems absent; turions absent. Leaves basal, emersed, sessile; sheath persisting longer than blade, not leaving circular scar when shed
4 KB (305 words) - 21:29, 5 November 2020
erect, leafy, elongate. Leaves basal, alternate, opposite, or whorled, sessile or petiolate; stipules sometimes present, forming tubular sheath around
6 KB (422 words) - 21:31, 5 November 2020
usually congested at or near base of flowering stems, usually connate, mostly sessile; blade 1-veined, needlelike or filiform to subulate or narrowly linear,
13 KB (1,003 words) - 23:08, 5 November 2020
alternate (proximal opposite in Shinnersoseris) [opposite]; petiolate or sessile; margins usually dentate or pinnately lobed (then frequently runcinate)
27 KB (747 words) - 20:18, 11 January 2021
or villous, abaxial often gland-dotted. Heads radiate, borne singly (± sessile among rosette leaves, or at ends of leafy stems, or on scapiform peduncles)
12 KB (645 words) - 20:38, 6 November 2020
and cauline; petiolate or sessile; basal rosulate or not, petiolate or sessile, blade margins entire; cauline petiolate or sessile, blade (base cuneate or
6 KB (526 words) - 23:32, 5 November 2020
slightly succulent. Leaves alternate, opposite, or whorled, petiolate [or sessile]; blade margins entire; stipules present or absent. Inflorescences axillary
4 KB (413 words) - 22:56, 5 November 2020
Inflorescences of sessile glomerules only or with smaller glomerules on short branches. > 3 2 Inflorescences with central glomerule(s) sessile or nearly sessile, always
7 KB (265 words) - 16:07, 7 June 2022
cm. Common stalk lacking idioblasts. Trophophore short-stalked or nearly sessile (long-stalked in forms of B. simplex and B. pedunculosum) arising from the
3 KB (352 words) - 21:21, 5 November 2020
and -locular; placentation laminar; ovules numerous per locule; stigma sessile, radiate on stigmatic disk. Fruits berrylike, indehiscent or irregularly
4 KB (311 words) - 22:48, 5 November 2020
plant, submersed, sessile or nearly so, subtended by involucre of 8-15 linear bracts; perianth absent; stamens 3-50; anthers nearly sessile, dehiscing by longitudinal
4 KB (376 words) - 22:45, 5 November 2020
perennial, erect or decumbent-ascending. Leaves alternate, short petiolate or sessile; blade typically widest at or beyond middle, margin entire or dentate. Staminate
2 KB (220 words) - 23:00, 5 November 2020
short-stalked or sessile and stellate, or distinctly stalked and subdendritic or forked, sometimes mixed with simple ones. Cauline leaves petiolate or sessile; blade
2 KB (175 words) - 23:32, 5 November 2020
Leaves cauline and often in a basal rosette, alternate; stipules absent; sessile or petiolate; blade margins dentate, denticulate, or serrulate. Inflorescences
9 KB (607 words) - 23:30, 2 December 2022
recurved prickles. Leaves deciduous, mostly cauline, alternate, petiolate or sessile; ocrea persistent or disintegrating with age and deciduous entirely or distally
5 KB (427 words) - 23:08, 5 November 2020
herbaceous or woody, unarmed, without glutinous bands on internodes. Leaves sessile to petiolate, subequal to greatly unequal in each pair, ± thick and succulent
7 KB (387 words) - 22:59, 5 November 2020
on page 349. Leaves alternate or the proximalmost opposite, petiolate or sessile; blade typically broadest near base, entire or dentate, often hastate. Staminate
2 KB (164 words) - 16:11, 5 March 2024
and cauline; petiolate or sessile; basal rosulate, petiolate, blade margins entire, dentate, or pinnately lobed; cauline sessile, blade (base usually auriculate
6 KB (443 words) - 23:29, 5 November 2020
suffrutescent. Leaves alternate or subopposite, sometimes subrosulate, petiolate or sessile, articulate at base, not clasping but sometimes with auriculate, membranous
9 KB (813 words) - 23:02, 5 November 2020
of stem. Leaves 2(–3, rarely), at apex of stem, opposite or subopposite, sessile, glabrous. Inflorescences terminal, 2–100-flowered racemes; peduncle and
5 KB (335 words) - 22:12, 5 November 2020
basal or terminal rosette, alternate, subclasping basally, petiolate or sessile; blade linear to orbiculate, nearly laminar to terete or subglobose, 0.2–30
10 KB (1,162 words) - 23:43, 5 November 2020
bluish green, glaucous; basal (usually persistent to flowering) petiolate or sessile; blades linear, lanceolate to ovate, or oblong to elliptic, usually lobed
8 KB (381 words) - 21:15, 5 November 2020
porrect-stellate [stellate] and, sometimes, glandular hairs. Leaves alternate, sessile or petiolate; stipules present or absent; blade margins crenate or serrate
3 KB (257 words) - 23:20, 5 November 2020
through other plants. Leaves opposite [rarely alternate], exstipulate, sessile or petiolate, pairs equal or unequal; blade linear to ovate or ± round,
14 KB (1,274 words) - 22:57, 5 November 2020
absent; stamens 8, subequal. Capsules 4-angled, 4-grooved or 8-ribbed; sessile or pedicellate. w North America. Species 6 (6 in the flora). None. Clarkia
2 KB (176 words) - 11:32, 9 May 2022
Inflorescences terminal and/or axillary, sessile, subglobose heads, often subtended by involucres of sessile leaves; bracts and bracteoles thin. Flowers
4 KB (234 words) - 23:01, 5 November 2020
oliganthus, P. tracyi); basal and proximal cauline petiolate; cauline sessile or petiolate, blade obovate, ovate, triangular-ovate, spatulate, oblanceolate
29 KB (911 words) - 20:32, 5 November 2020
branches. Some have distinctive odors and bear clear, colorless or colored sessile glands that may or may not have a waxy or resinous exudate and/or stalked
23 KB (1,561 words) - 23:47, 5 November 2020
cauline, or cauline; opposite or alternate; usually petiolate, sometimes sessile; blades mostly cordate, deltate, elliptic, lanceolate, linear, oblanceolate
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same plant. Staminate flowers sessile or pedicellate; calyx of 2-6 sepals; stamens 1-2, straight. Pistillate flowers sessile; ovary 1-locular; style unbranched
6 KB (407 words) - 22:51, 5 November 2020
unbranched or branched distally. Leaves basal and cauline; petiolate or sessile; basal (persistent in B. tournefortii), rosulate or not, petiolate, blade
8 KB (654 words) - 23:35, 5 November 2020
basal and cauline, or mostly cauline; opposite and/or alternate; usually sessile, rarely petiolate; blades usually spatulate to oblanceolate or linear to
11 KB (603 words) - 21:13, 5 November 2020
narrowly clavate, splitting to base, central column persistent, pedicellate or sessile. Seeds many, in 1 row per locule, narrowly obovoid or fusiform to narrowly
8 KB (1,136 words) - 11:31, 9 May 2022
short-villous. Leaves cauline (deciduous); alternate; subpetiolate, subsessile, or sessile; blades 1-nerved, oblong, oblanceolate, elliptic, obovate-cuneate (often
7 KB (574 words) - 20:58, 5 November 2020
spreading, veined or veinless on faces, with 2 prominent marginal veins, sessile or stipitate, elliptic to ovate or obovate, plano-convex or biconvex in
14 KB (773 words) - 21:42, 5 November 2020
spreading-ascending. Leaves alternate, subopposite, opposite, or whorled, petiolate or sessile; blade 1-veined from base, linear to elliptic or ovate, oblanceolate, or
7 KB (452 words) - 23:23, 5 November 2020
unbranched or branched distally. Leaves basal and cauline; petiolate or sessile; basal (often withered by anthesis or fruiting), not or, rarely, rosulate
5 KB (305 words) - 23:31, 5 November 2020
involucres. Sporangia borne on moundlike receptacle or on elongate "bristle," sessile or short-stalked; annulus oblique. Spores green, globose, trilete. Gametophytes
5 KB (452 words) - 21:24, 5 November 2020
absent. Leaves present or absent, cauline or basal, alternate, simple, sessile, often scalelike, margins entire; stipules absent. Inflorescences terminal
5 KB (438 words) - 22:11, 5 November 2020
lateral spikes gynecandrous or pistillate, rarely staminate or androgynous, sessile, without prophylls; terminal spike usually gynecandrous. Proximal pistillate
6 KB (361 words) - 21:41, 5 November 2020
(rarely simple), not jointed, not armed, not fleshy. Leaves alternate, sessile; blade [obovate-elliptic, elliptic], lanceolate, linear-lanceolate, linear
13 KB (1,144 words) - 22:59, 5 November 2020
ascending, veined or veinless on faces, with 2 distinct marginal veins, sessile, obovoid to suborbicular, rounded or somewhat compressed in cross section
12 KB (420 words) - 21:42, 5 November 2020
strongly formed. Inflorescences of spikelets sessile in clusters of 2–5 (rarely solitary), the clusters sessile or pedunculate and terminal or racemose; spikelets
8 KB (538 words) - 21:40, 5 November 2020
stellate-canescent to stellate-silvery-lepidote, rarely glabrous. Leaves petiolate or sessile; stipules persistent or deciduous, linear; blade linear, lanceolate, orbiculate
12 KB (431 words) - 20:45, 10 May 2024
blade sessile. Inflorescences terminal and/or axillary, cyme pairs (often aggregated into larger spikelike or paniclelike units), cymes sessile, umbel-like
5 KB (260 words) - 21:30, 5 November 2020
(gradually or abruptly reduced distally); alternate; petiolate (mostly basal) or sessile; blades pinnately nerved, elliptic, lanceolate, linear, lyrate, orbiculate
36 KB (999 words) - 20:59, 5 November 2020
simple, alternate, usually crowded at bases of stems or ends of branches, sessile; blade fleshy, margins often prickly, venation parallel. Inflorescences
2 KB (227 words) - 22:17, 5 November 2020
bisexual; tepals 6; stamens 6, distinct; ovariesy 1, (1–)3-locular, sessile; stigmas sessile (styles essentially absent), minute. Fruits berries; pericarp thin
4 KB (374 words) - 21:30, 5 November 2020
caulescent; turions absent. Leaves submersed, alternate or nearly opposite, sessile; sheath persisting longer than blade, leaving circular scar when shed, not
3 KB (287 words) - 21:31, 5 November 2020
by longitudinal slits; pistils 1–9, distinct, free, short-stipitate or sessile, styles usually ± oblique, often indistinct, stigmas capitate or relatively
5 KB (477 words) - 23:53, 5 November 2020
Leaves cauline; all or mostly opposite or mostly alternate; petiolate or sessile; blades 1- or 3-nerved, deltate, lanceolate, lance-elliptic, lance-linear
5 KB (309 words) - 21:08, 5 November 2020
gland-dotted; cauline usually petiolate (at least proximal), distal usually sessile, blades linear or ovate to pandurate, sometimes lobed, lobes 3(–5), bases
7 KB (348 words) - 21:08, 5 November 2020
anthesis, pushing flower through involucre; anther sessile, 1- or 4-loculed. Pistillate flowers sessile; ovary 1-loculed; ovules basal, 1; style terminal
6 KB (477 words) - 21:32, 5 November 2020
mm wide. Stems: glabrous; cauline bracts 2–3, sheathing. Leaves 1(–3), sessile; blade linear, lanceolate, or elliptic-lanceolate, conduplicate, frequently
7 KB (628 words) - 22:12, 5 November 2020
or perennials; eglandular. Trichomes [simple or] absent. Cauline leaves sessile; blade base usually auriculate, sometimes amplexicaul, margins usually entire
2 KB (146 words) - 23:37, 5 November 2020
dimorphic. Sporangia in 2 rows on ultimate segments of fertile pinnae, sessile, oblong; annulus apical. Spores tetrahedral-globose, with parallel or rarely
2 KB (115 words) - 21:22, 5 November 2020
section, spongy, margins entire. Flowers wind-pollinated, odorless, sessile. Fruits sessile or stipitate; tepals persistent, attached at base, in one species
8 KB (651 words) - 21:31, 5 November 2020
evergreen, opposite or alternate, simple; stipules absent; petiolate or sessile; blade membranous or leathery, venation pinnate, margins entire, surfaces
4 KB (419 words) - 23:37, 2 December 2022
stipitate-glandular hairs; and sect. Decamerium (species 6–10) with deciduous leaves and sessile glands. Molecular investigation by J. W. Floyd (2002) suggested these sections
7 KB (469 words) - 23:41, 5 November 2020
glabrous, glabrate, pilose to villous, tomentose, or sericeous, sometimes sessile- or stipitate-glandular, granular deposits present or absent, adaxial glabrous
10 KB (1,117 words) - 23:58, 5 November 2020
parietal, basal, or parietal-basal; styles [2–]3–4[–5] [absent, stigmas sessile]. Fruits capsular, dehiscence loculicidal. Seeds comose at one end [hairy
4 KB (387 words) - 23:23, 5 November 2020
staminate on flowering branchlet or sessile, usually stout, or slender to globose; pistillate on flowering branchlet or sessile, usually densely flowered, sometimes
46 KB (708 words) - 23:29, 5 November 2020
style; pistil 3-carpellate; ovary superior, green (purple in B. jolonensis), sessile, 3-locular, ovules several; style erect; stigma 3-lobed, lobes distinctly
8 KB (592 words) - 22:16, 5 November 2020
leafy stems; heads ± sessile, closely subtended by rosette leaves > 45 44 Leaves basal and evidently cauline or all cauline; heads sessile or pedunculate, evidently
56 KB (1,993 words) - 20:52, 5 November 2020
axillary or sessile, the axillary scapose, 0.3–4 cm × 1.5–8 mm; scape 8–10 cm × 0.5–1.5 mm.; sessile inflorescences solitary flowers. Flowers sessile; perianth
4 KB (389 words) - 21:32, 5 November 2020
1–5 cm. Leaves: petiole length (0–)10–40(–60)% blade, pubescent (young), sessile-glandular (young); blade light to mid green abaxially, usually elliptic
16 KB (866 words) - 23:53, 5 November 2020
floccose-woolly. Leaves basal and cauline; alternate; petiolate (basal) or sessile (cauline); blades lance-linear to broadly ovate, sometimes pinnately lobed
4 KB (348 words) - 21:08, 5 November 2020
except in Populus angustifolia); stipules caducous; catkins pendulous, sessile; floral bracts: apex deeply or shallowly cut, pistillate floral bracts deciduous
9 KB (932 words) - 23:29, 5 November 2020
cm. Leaves: petiole length 15–50% blade, glabrous or pubescent, usually sessile-glandular (sometimes stipitate-glandular in C. frugiferens); blade light
11 KB (745 words) - 23:53, 5 November 2020
tissue. Leaves opposite, subopposite, alternate, subalternate, or whorled; sessile or subsessile; blade ovate, obovate, oblong, oblong-lanceolate, lanceolate
9 KB (532 words) - 23:43, 2 December 2022
appearing whorled, connate by membranous to thickened line, petiolate or sessile, stipulate (D. pachyphylla not stipulate); stipules 2 per node, white to
7 KB (508 words) - 23:09, 5 November 2020
throughout. Leaves basal and cauline (mostly cauline at flowering); alternate; sessile or petiolate; blades (usually 1-nerved) elliptic, linear, oblanceolate,
6 KB (449 words) - 21:02, 5 November 2020
splitting only on distal 1/3 with central column disintegrating; pedicellate or sessile. Seeds usually numerous (1–100+ per locule), usually in 1, rarely 2, rows
26 KB (1,416 words) - 17:40, 2 December 2022
not glaucous; basal and proximal cauline petiolate; cauline petiolate or sessile, blade obovate, spatulate, oblanceolate, lanceolate, elliptic, or linear
7 KB (418 words) - 20:31, 5 November 2020
or inconspicuous, sheathless; lateral spikes gynecandrous or pistillate, sessile, without prophylls; terminal spikes gynecandrous. Proximal pistillate scales
8 KB (425 words) - 21:41, 5 November 2020
differentiated into long and short shoots. Winter buds stipitate (nearly sessile in Alnus subg. Alnobetula), narrowly to broadly ovoid or ellipsoid, terete
9 KB (813 words) - 18:30, 6 June 2022
anthers ovate, face to face in bud, extrorse; ovaries sessile, ovoid, 1-locular; styles short, sessile, divided into 2 divergent, elongate, reflexed lobes
5 KB (375 words) - 22:51, 5 November 2020
and axillary, or opposite leaves, densely to loosely flowered. Flowers sessile, borne on surface or in pitlike depressions of rachis, floral bracts glabrous
5 KB (280 words) - 22:47, 5 November 2020
submarginal or laminar; ovules 100-several hundred [1-20]; stigma 1, sessile to nearly sessile. Fruits aggregates of berries or of fleshy follicles (sometimes
3 KB (334 words) - 22:51, 5 November 2020
opposite, subopposite, or alternate, simple; stipules absent; petiolate [sessile]; blade leathery, margins entire or dentate. Inflorescences terminal or
3 KB (238 words) - 11:32, 9 May 2022
only a single heterogamous triplet of 1 sessile and 2 pedicellate spikelets, sometimes with 1(-3) heterogamous sessile-pedicellate spikelet pairs below the
5 KB (405 words) - 18:57, 11 May 2021
decumbent, unarmed, without glutinous bands on internodes. Leaves petiolate or sessile, ± equal in each pair; blade thin to thick and fleshy, base ± symmetric
11 KB (398 words) - 23:00, 5 November 2020
basal and cauline, or cauline; opposite or alternate or both; petiolate or sessile; blades simple and entire (dentate in C. latifolia), or ± pinnately or pedately
7 KB (584 words) - 21:12, 5 November 2020
obtuse or acute to acuminate, surfaces glabrous and/or with lepidote scales, sessile- or stipitate-stellate hairs, or glandular-villous. Inflorescences terminal
4 KB (303 words) - 23:45, 5 November 2020
sometimes present, thin, shorter than the lower lemmas; upper florets bisexual, sessile, plump, usually apiculate to mucronate, sometimes minutely so, or subacute
20 KB (884 words) - 15:13, 23 September 2022
subshrubs, 10–80 cm (often ± succulent). Leaves cauline; opposite; petiolate or sessile; blades (1- or 3-nerved) oblong, oblong-ovate, lanceolate, linear, or filiform
4 KB (274 words) - 21:13, 5 November 2020
on page 414. Mentioned on page 415. Shrubs or trees. Leaves usually sessile, sessile or amplexicaul in T. tetragyna, or sheathing in T. aphylla. antisepalous
10 KB (1,063 words) - 18:19, 21 July 2022
fasciculate), glandular hairs, sessile glands, and/or scales, sometimes glabrous. Staminate catkins solitary from 2d-year twigs, sessile; stamens 7-50 per flower
6 KB (496 words) - 22:45, 5 November 2020
and mat-forming to erect. Leaves cauline or basal, alternate or opposite, sessile or petiolate; stipules usually absent, or free from or adnate to petiole;
11 KB (1,103 words) - 22:56, 5 November 2020
[treelets], 10–120(–300+)[–1200+] cm. Leaves cauline; opposite; petiolate or sessile; blades mostly deltate or ovate to lanceolate or linear (and most intermediate
4 KB (353 words) - 21:13, 5 November 2020
simple; ovule 1 per pistil; style present. Fruits achenes, aggregate, sessile or stalked, ovoid to obovoid, sides not veined; beak (persistent style)
16 KB (1,220 words) - 20:37, 6 November 2020
sometimes stipitate-glandular. Leaves basal and cauline; alternate; usually sessile, sometimes basal and proximal cauline petiolate; blades 1-nerved, ovate
7 KB (586 words) - 21:06, 5 November 2020
glabrous or hairy, glaucous or not; cauline petiolate, short-petiolate, or sessile, blade round, orbiculate, ovate, obovate, lanceolate, oblanceolate, spatulate
6 KB (338 words) - 20:30, 5 November 2020
glabrous, sometimes pubescent young, eglandular or sparsely glandular, usually sessile-glandular; blade mid to dark green adaxially, broadly elliptic to ovate
6 KB (491 words) - 00:00, 6 November 2020
glabrous, often glaucous; bulblets sometimes borne in leaf axils. Leaves sessile; basal persistent or withering by flowering, solitary, blade base sometimes
18 KB (609 words) - 22:13, 5 November 2020
and square in cross section (to triangular or ± flattened), mostly rigid, sessile on peglike base; base decurrent, persistent after leaves shed, sheath absent;
5 KB (335 words) - 20:35, 6 November 2020
cauline; petiolate or sessile; basal (soon caducous), rosulate or not, petiolate, blade margins entire or dentate; cauline sessile, blade (base auriculate
7 KB (486 words) - 23:31, 5 November 2020
tubers. Sexual condition monoicous. Seta none. Capsule terminal or lateral, sessile, globose, 200–1000 µm, apiculatus absent, cleistocarpous. Calyptra ephemeral
3 KB (318 words) - 22:26, 5 November 2020
racemose on elongate rachises, sometimes digitate or subdigitate, with 1-130+ sessile to subsessile spikelets in 2 rows, axes terminating in a spikelet or extending
12 KB (632 words) - 18:59, 11 May 2021
perennial, rhizomatous, caulescent; turions absent. Leaves alternate, emergent, sessile; sheath with remains often persisting, auriculate; blade linear, nearly
3 KB (226 words) - 21:29, 5 November 2020
bases or ± throughout. Leaves cauline; opposite or alternate; petiolate or sessile; blades often pinnately lobed, blades or lobes spatulate to linear or filiform
6 KB (363 words) - 21:13, 5 November 2020
153, 155, 166. Leaves: basal withering by flowering, proximalmost cauline sessile, withering by flowering, not as large as proximal and sometimes distal,
9 KB (528 words) - 21:02, 5 November 2020
or shorter than the lower lemmas and hyaline; upper florets bisexual, sessile or stipitate, apices acute, puberulent, or with a tuft of hairs; upper lemmas
20 KB (1,030 words) - 01:29, 21 December 2023
disarticulation in the rames, below the sessile spikelets. Spikelets dorsally compressed, in heterogamous sessile-pedicellate pairs. Sessile spikelets embedded in the
4 KB (297 words) - 18:57, 11 May 2021
[herbs], perennial, succulent, mucilaginous, glabrous. Leaves alternate, sessile or petiolate; blade margins entire [toothed]; stipules absent. Inflorescences
6 KB (691 words) - 22:56, 5 November 2020
3 Pinnae of 2d pair sessile or rarely stalked; proximal basiscopic pinnule of basal pinnae sessile. > 4 4 Pinnae of 2d pair sessile with basal pinnules
6 KB (364 words) - 21:25, 5 November 2020
glandular and simple [stellate], glandular hairs sessile-capitate or microcapitate. Leaves petiolate or sessile, often with nectaries; stipules present or absent
4 KB (366 words) - 23:20, 5 November 2020
proximally in decumbent plants). Leaves mostly cauline; opposite; petiolate or sessile; blades usually linear, often 1(–2)-pinnately lobed, ultimate margins entire
7 KB (670 words) - 21:14, 5 November 2020
sometimes, rounded, indehiscent, septa fragile, not evident at maturity; sessile, sometimes disarticulating from plant at maturity. Seeds reduced to 1–4(–8)
8 KB (718 words) - 23:15, 2 December 2022
the awns; rachises disarticulating at maturity. Central spikelets sessile, florets sessile or pedicellate, pedicels to 2 mm; glumes 11-25 mm long, 0.8-1.8
5 KB (372 words) - 17:23, 11 May 2021
cylindrical to clavate or capitate, usually dense panicles or spikes, spikelets sessile or shortly pedicellate; rachillas tardily disarticulating between the florets
4 KB (281 words) - 18:59, 11 May 2021
terminating in a sessile-pedicellate spikelet pair; internodes sparsely to densely villous, hairs from as long as to twice as long as the sessile spikelets.
4 KB (286 words) - 18:57, 11 May 2021
Leaves usually cauline, sometimes mostly basal; alternate; petiolate or sessile; margins entire or denticulate to serrate or dentate [1–2-pinnately divided]
5 KB (432 words) - 20:56, 5 November 2020
basal, or basal-proximal, or basal and cauline; alternate; petiolate or sessile; blades (usually with distinct midribs) mostly oblanceolate to linear or
7 KB (468 words) - 21:08, 5 November 2020
gradually tapering from base to apex, dehiscent 1/2 to nearly throughout; sessile. Seeds numerous, in 1 row per locule, obovoid, surface minutely alveolate
7 KB (581 words) - 18:00, 4 January 2023
(surfaces hirsute); glandular hairs of two types: (1) short-stipitate, and (2) sessile, both ± glistening (indumentum description applies to all plant surfaces
9 KB (825 words) - 23:57, 5 November 2020
sometimes branched, (not thickened); usually densely pubescent, trichomes (sessile or short-stalked), 3–7-rayed, rays distinct or slightly fused at base, typically
6 KB (439 words) - 18:15, 6 November 2020
spikelets in heterogamous sessile-pedicellate spikelet pairs, terminal spikelet unit on each rame usually a triplet of 1 sessile and 2 pedicellate spikelets
6 KB (559 words) - 18:57, 11 May 2021
caulescent; turions absent. Leaves alternate, floating [submersed], petiolate [sessile]; sheath not persisting longer than blade, not leaving circular scar when
2 KB (203 words) - 20:02, 13 March 2024
subequal; ovary subterete or 4-grooved, often 8-striate. Capsules 4-angled; sessile or pedicellate. nw United States, w Mexico. Species 7 (7 in the flora).
2 KB (184 words) - 11:32, 9 May 2022
Stems rounded to noticeably angled. Leaves opposite, simple, petiolate or sessile, with salt glands, estipulate, paired leaves connate basally by membranous
3 KB (257 words) - 23:23, 5 November 2020
1 Inflorescences composed of pairs of contracted, sessile, umbel-like cymes; flowers radially symmetric; stamens 6 (rarely fewer)
6 KB (457 words) - 21:30, 5 November 2020
erect, forming flattened or fusiform pseudobulbs. Leaves 1–3, apical, sessile, articulate; blade ovate to lanceolate, thinly leathery. Inflorescences
6 KB (493 words) - 22:12, 5 November 2020
cauline; petiolate or sessile; basal not rosulate, shortly petiolate, blade margins entire or dentate; cauline shortly petiolate or sessile, blade (base not
4 KB (367 words) - 23:33, 5 November 2020
distally, sometimes unbranched. Leaves basal and cauline; petiolate or sessile; basal rosulate or not, petiolate, blade margins dentate, sinuate, lyrate
7 KB (593 words) - 23:30, 5 November 2020
unbranched or branched distally. Leaves basal and cauline; petiolate or sessile; basal rosulate, petiolate, margins entire, denticulate, or dentate; cauline
5 KB (421 words) - 23:37, 5 November 2020
roots. Leaves basal and cauline, proximal leaves petiolate, distal leaves sessile or nearly so; cauline leaves alternate. Leaf blade palmately divided into
9 KB (871 words) - 22:52, 5 November 2020
persistent taproots; sap white to orange. Stems leafy, branching. Leaves sessile; basal rosulate, cauline alternate; blade unlobed or commonly shallowly
11 KB (563 words) - 22:50, 5 November 2020
mostly cauline; mostly alternate (proximal sometimes opposite); petiolate or sessile; blades usually 1–2(–3)-pinnately lobed, ultimate margins toothed, serrate
10 KB (777 words) - 21:15, 5 November 2020
triangular-acuminate. Flowers 2–160, resupinate or not, erect or spreading, sessile or minutely to strongly pedicellate; sepals spreading, distinct or lateral
6 KB (328 words) - 22:12, 5 November 2020
bisexual and/or unisexual; sepals 4-6; filaments filiform to clavate. Achenes sessile to stipitate. North America. Species 5 (5 in the flora). None. Thalictrum
2 KB (104 words) - 16:05, 28 February 2024
or rounded, with sheathing, papery bracts proximally. Leaves alternate, sessile or perfoliate; blade oblong-linear to oblong-ovate, membranaceous to leathery
6 KB (477 words) - 22:13, 5 November 2020
Flowers bilaterally symmetric, sessile; stamens 6–18–[50]; filaments distinct; anthers 2-locular; pistils 2–6[–9], sessile. Fruits: beak terminal [lateral]
2 KB (112 words) - 21:29, 5 November 2020
apex; anthers subbasifixed, versatile; pistil 3-carpellate; ovary superior, sessile, 3-locular, ovules anatropous, several per locule; style persistent, splitting
5 KB (498 words) - 22:16, 5 November 2020
sometimes almost opposite]. Leaves alternate [rarely proximal almost opposite], sessile (sometimes narrowed into pseudopetiole); blade obovate-lanceolate, lanceolate
4 KB (256 words) - 22:59, 5 November 2020
disarticulating, without abscission layers below the sessile spikelets. ALL TAXA: Staminate spikelets in sessile-pedicellate pairs, each with 2 staminate florets;
10 KB (1,034 words) - 16:54, 30 November 2021
filiform or leaflike, sheathless; lateral spikes androgynous or pistillate, sessile, without prophylls; terminal spike androgynous. Proximal pistillate scales
12 KB (379 words) - 21:41, 5 November 2020
sap clear. Roots not septate. Leaves basal, emersed or rarely submersed, sessile, sheathing somewhat proximally; blade with lade: translucent markings absent
3 KB (259 words) - 21:31, 5 November 2020
cauline [rosulate]; usually alternate, sometimes opposite; petiolate or sessile; margins usually entire or dentate, sometimes lobed to dissected. Heads
5 KB (379 words) - 20:53, 5 November 2020
or tomentose. Leaves deciduous, mostly cauline, alternate, petiolate or sessile; ocrea persistent or deciduous, chartaceous; blade narrowly lanceolate to
6 KB (463 words) - 23:08, 5 November 2020
cauline; petiolate or sessile [subsessile]; basal rosulate, petiolate, blade margins entire or dentate; cauline petiolate or sessile [subsessile], blade
3 KB (308 words) - 23:33, 5 November 2020
heads soon falling, 1-5, green, sessile, globose; pistillate with heads 1-7, terminal (and in some species lateral), sessile or pedunculate, globose, the
4 KB (446 words) - 22:50, 5 November 2020
perennials; (base often woody); not scapose; pubescent throughout, trichomes sessile, subsessile, or short-stalked, dendritic and subdendritic, 3–6-rayed. Stems
5 KB (435 words) - 23:36, 5 November 2020
Leaves: basal leaves petiolate, blade proportionately broader; distal leaves sessile or subsessile, blade narrower, margins entire to crisped. Inflorescences
6 KB (687 words) - 23:02, 5 November 2020
branched, not jointed, not armed, not fleshy. Leaves alternate or opposite, sessile or short-petiolate, fleshy; blade glaucous or green, linear, lanceolate
7 KB (654 words) - 23:00, 5 November 2020
mostly cauline; usually opposite (distal sometimes alternate); petiolate or sessile; blades (often 3- or 5-nerved) mostly deltate, elliptic, lanceolate, lance-ovate
5 KB (411 words) - 21:12, 5 November 2020
often tapering at each end, dehiscent 1/2 to throughout their length; sessile. Seeds usually numerous, in 2 rows per locule, usually obovoid and somewhat
5 KB (564 words) - 11:31, 9 May 2022
dioecious stem parasites, achlorophyllous; roots not produced. Stems not sessile, 1-locular anthers connate to distal portion of central column, not produced
4 KB (395 words) - 23:23, 5 November 2020
node, lateral spikelets usually shortly pedicellate, central spikelets sessile or nearly so; disarticulation tardy, at the rachis nodes and beneath the
4 KB (403 words) - 17:23, 11 May 2021
ovary 1-locular; placentation apical; ovule 1; style short; stigma nearly sessile, capitate. Fruits nutlike, indehiscent, loose in cavities of strongly accrescent
3 KB (232 words) - 22:51, 5 November 2020
gynophore, placentation apical, styles 2–3(–4), usually ± lacking, stigmas sessile and divergent on apices of ovaries; ovules 2 or 3 per locule. Fruits berries
3 KB (267 words) - 23:53, 5 November 2020
winter–spring rosettes, usually withering before flowering), mostly alternate; sessile; blades linear to oblanceolate, margins serrate to serrulate or entire,
5 KB (389 words) - 21:14, 5 November 2020
throughout). Leaves (sometimes ± fleshy) basal and cauline; alternate; mostly sessile; blades pinnately nerved, linear (or pinnately divided into 2–15 linear
3 KB (250 words) - 21:00, 5 November 2020
basal persistent or caducous, petiolate or sessile; cauline alternate, opposite, or whorled, petiolate or sessile; blades simple, lanceolate, falcate, or
4 KB (269 words) - 19:27, 6 November 2020
ovate to ovate-lanceolate, concave; petals often shorter than sepals; lip sessile at base of column, fleshy, divided into 2 parts by central constriction
4 KB (227 words) - 22:12, 5 November 2020
alternate, opposite, or pseudowhorled, often all on same plant, submersed, sessile; sheath not persisting longer than blade, not leaving circular scar when
3 KB (244 words) - 21:32, 5 November 2020
or brown, tunicate, ovoid or globose, sometimes with long neck. Leaves sessile, erect or recumbent, with overlapping sheathing bases; blade linear, rarely
10 KB (844 words) - 22:15, 5 November 2020
aerenchymatous spongy tissue. Leaves opposite [subopposite or whorled]; sessile; blade linear, linear-lanceolate, oblong, linear-oblong, lanceolate, elliptic
5 KB (396 words) - 11:32, 9 May 2022
branched distally, densely pubescent. Leaves basal and cauline; petiolate or sessile; basal rosulate, petiolate, blade margins usually 1- or 2-pinnatisect, rarely
7 KB (402 words) - 23:30, 5 November 2020
withering by flowering; proximal cauline usually withering by flowering, sessile, blades elliptic to lanceolate, 68–104 × 20–25 mm, margins sharply serrate
6 KB (468 words) - 15:04, 10 December 2021
usually opposite (rarely whorled, distal sometimes alternate); petiolate or sessile; blades usually 3-nerved from or distal to bases, or pinnately nerved, mostly
13 KB (628 words) - 21:08, 5 November 2020
axillary, sessile dichasium, subtended by 2 subopposite, involucral leaves that become indurate and connate in age. Flowers bisexual, sessile or short-pedicellate;
6 KB (585 words) - 23:01, 5 November 2020
and cauline; mostly opposite (distal sometimes alternate); petiolate or sessile; blades (palmately or pinnately nerved) deltate to linear or filiform (and
10 KB (723 words) - 21:10, 5 November 2020
opposite in 4 ranks, or whorled, deltate-scalelike to linear, decurrent, sessile or petioled; adult leaves appressed or spreading, often differing between
12 KB (1,137 words) - 20:26, 28 December 2023
± throughout or opposite (proximal) and alternate or mostly alternate; sessile or petiolate; blades (or lobes) deltate, elliptic, filiform, lanceolate
11 KB (475 words) - 21:11, 5 November 2020
spectabilis, P. stephensii); basal and proximal cauline petiolate; cauline sessile or short-petiolate, blade cordate, ovate, triangular-ovate, triangular,
10 KB (663 words) - 20:34, 5 November 2020
mostly cauline; mostly alternate (proximal sometimes opposite); petiolate or sessile; blades mostly elliptic, lanceolate, linear, oblanceolate, oblong, ovate
8 KB (469 words) - 20:39, 6 November 2020
divaricate, branched basally. Leaves cauline; usually petiolate, rarely sessile; blade (often fleshy), not rosulate, margins entire, crenate, dentate, sinuate
6 KB (453 words) - 23:35, 5 November 2020
or spreading, simple or branched. Leaves basal and cauline; petiolate or sessile; proximal blade margins often ± deeply lobed, (spiny in C. benedicta), distal
16 KB (1,523 words) - 20:37, 6 November 2020
terete or 4-angled. Leaves sometimes connate basally into sheath, often sessile; blade 1-veined, linear or lanceolate to ovate or deltate, succulent (S
16 KB (807 words) - 23:09, 5 November 2020
(unbranched proximal to heads). Leaves basal and cauline; alternate; petiolate or sessile; blades palmately nerved, mostly cordate, deltate, elliptic, hastate, ovate
6 KB (364 words) - 21:00, 5 November 2020
lemmonii); proximal pinnae (several pairs) usually gradually reduced, sessile to short-petiolulate, bases usually inequilateral with acroscopic lobe;
10 KB (804 words) - 21:22, 5 November 2020
basal and cauline or mostly cauline; alternate; petiolate (proximal) or sessile (distal); cauline blades 1-nerved, oblong, obovate, oblanceolate, or spatulate
18 KB (1,335 words) - 21:07, 5 November 2020
opposite, rarely 3- or 4-whorled, when whorled, opposite at proximal nodes; sessile, subsessile, or petiolate; blade ovate to lanceolate, oblong, elliptic,
6 KB (572 words) - 23:41, 2 December 2022
basal and cauline; petiolate or sessile; basal rosulate, petiolate, blade margins entire; cauline petiolate or sessile, blade margins entire. Racemes (few-
4 KB (316 words) - 23:32, 5 November 2020
unawned; styles 2, not fused. Staminate spikelets paired, both sessile or both subsessile, or 1 sessile and the other pedicellate; glumes coriaceous, chartaceous
5 KB (451 words) - 18:58, 11 May 2021
cauline; petiolate and sessile; basal rosulate, long-petiolate, blade margins crenate or pinnatifid [entire]; cauline petiolate or sessile distally, blade margins
3 KB (287 words) - 23:35, 5 November 2020
glandular, dull, not striate; rachis straight. Ultimate segments of blade sessile to subsessile, often adnate to costae, narrowly elliptic to oblong-ovate
9 KB (644 words) - 21:25, 5 November 2020
proximally, tomentulose distally. Leaves basal and cauline; petiolate or sessile; blades deltate to triangular, or ovate to oblanceolate, or oblong to linear
10 KB (560 words) - 20:51, 5 November 2020
virgate, often striate). Leaves cauline; opposite or alternate; petiolate or sessile; blades usually 3-nerved from bases, deltate, lance-elliptic, lance-linear
13 KB (456 words) - 21:09, 5 November 2020
then flowers seemingly inserted opposite bracts). Flowers pedicellate (sessile in R. platensis); sepals deciduous soon after anthesis, 5 (3 in R. platensis);
4 KB (254 words) - 22:45, 5 November 2020
spiny winged-petiolate or sessile; principal cauline many, well distributed, proximally ± winged-petiolate, distally sessile, gradually reduced; distal
7 KB (627 words) - 19:30, 6 November 2020
rhizomatous, caulescent; turions absent. Leaves alternate, submersed, sessile; sheath persisting longer than blade or decaying with age into bundles of
4 KB (333 words) - 21:30, 5 November 2020
acaulescent; taprooted, rootstocks branched, woody. Leaves in basal rosettes, sessile; blade linear to linear-spatulate [lanceolate], narrowed or straight to
3 KB (331 words) - 23:08, 5 November 2020
rachis, segment margins serrulate or crenate; proximal pinnae often reduced, sessile to short-petiolulate, ± equilateral; costae adaxially grooved, grooves continuous
3 KB (292 words) - 21:24, 5 November 2020
Trichomes simple or absent, [rarely branched]. Cauline leaves petiolate or sessile; blade base not auriculate [auriculate], margins usually pinnately lobed
2 KB (162 words) - 23:30, 5 November 2020
at flowering, sessile or winged-petiolate; cauline many in caulescent forms, reduced distally or not, winged-petiolate or distal sessile; distal often
10 KB (905 words) - 19:32, 6 November 2020
opposite, connate by stipules from adjacent leaves, petiolate (basal) or sessile (cauline); stipules 2 per node, often conspicuous, white or silvery, subulate
15 KB (924 words) - 23:11, 5 November 2020
tomentose to villous, sericeous, sessile- or stipitate-glandular, adaxial glabrous or glabrate, puberulent, or short-hirsute, ± sessile-glandular; short shoots
7 KB (722 words) - 19:08, 6 November 2020
Leaves alternate, 2-ranked; stipules absent; petiolate foliage leaves and sessile, triangular scale-leaves both present. Leaf blade membranous or leathery
7 KB (446 words) - 22:50, 5 November 2020
lemmas adjacent to the branch axes; lower florets sterile; upper florets sessile or stipitate, bisexual, acute or rounded. Lower glumes absent or present
18 KB (699 words) - 18:57, 11 May 2021
vines]. Leaves basal and/or cauline; alternate [opposite]; petiolate or sessile; margins entire, dentate, pinnately lobed, or pinnatifid [pinnately compound
8 KB (640 words) - 20:50, 5 November 2020
distally). Leaves: basal (sometimes persistent) and cauline; short-petiolate or sessile; blades 1-nerved, lanceolate to oblanceolate or spatulate (bases tapering
8 KB (617 words) - 21:06, 5 November 2020
often absent at flowering time), proximal leaves petiolate, distal leaves sessile; cauline leaves alternate. Leaf blade 1-3-pinnately dissected, segments
4 KB (416 words) - 22:52, 5 November 2020
2-ternate, occasionally irregularly so; petiole 2-10 cm; terminal leaflet sessile or basally attenuate and appearing petiolulate, obovate to obtriangular
4 KB (363 words) - 17:58, 6 November 2020
margins entire to dentate, not spiny; proximal pinnae somewhat reduced, sessile, bases usually ± equilateral; costae often shallowly grooved adaxially,
9 KB (567 words) - 21:21, 5 November 2020
sepals 5 (often 4 in T. alpinum); filaments filiform. Achenes sessile to nearly sessile. Temperate North America and Eurasia. Species 33 (2 in the flora)
2 KB (82 words) - 22:47, 5 November 2020
or present, persistent; petiole absent or present, glands absent [small sessile gland at apex]; blade unlobed, margins entire, dentate, crenate, serrulate
6 KB (484 words) - 20:15, 5 November 2020
branched distally. Leaves cauline; not rosulate, petiolate, subsessile, or sessile, blade (somewhat fleshy, becoming leathery when dry, base not auriculate)
6 KB (435 words) - 23:30, 5 November 2020
unbranched or branched. Leaves cauline and, sometimes, basal; petiolate or sessile; basal rosulate, petiolate, blade margins entire, lyrately lobed or 1- or
6 KB (412 words) - 23:30, 5 November 2020
Inflorescences (5–)12–30-flowered; bracteoles caducous, membranous, margins sessile- or stipitate-glandular. Flowers (12–)13–19(–22) mm diam.; sepal margins
7 KB (393 words) - 00:00, 6 November 2020
appearing in spring before leaves or in fall, bisexual, pedicellate or sessile; calyx 3-9-lobed; stamens 3-9; styles persistent, deeply 2-lobed. Fruits
8 KB (708 words) - 22:46, 5 November 2020
many-flowered, subtended by 2 large, lanceolate, scarious bracts. Flowers sessile or pedicellate; perianth connate proximally, red to white, often striped
3 KB (223 words) - 22:15, 5 November 2020
intermixed with pistillate, with 4–5-parted calyx. Fruiting bracteoles sessile, subsessile, or stipitate (stipe 0.5–5 mm), cuneate-orbicular, (2.5–)4–11
6 KB (447 words) - 18:03, 6 November 2020
or not, to 0.5 mm or absent; petiole 0.2–1 cm, glands at apex 2, yellow, sessile to shortly stipitate, cuplike; blade ovate proximally, oblong-lanceolate
6 KB (401 words) - 19:11, 6 November 2020
present at flowering, petiolate or sessile and bases tapered, spiny-winged; principal cauline much reduced distally, sessile, bases decurrent or not, as spiny
6 KB (412 words) - 19:23, 6 November 2020
decumbent, unbranched or branched. Leaves basal and cauline; petiolate or sessile; basal rosulate or not, petiolate, blade margins usually entire, repand
6 KB (494 words) - 23:36, 5 November 2020
distally. Leaves cauline and sometimes basal; petiolate or sessile; basal rosulate or not, sessile [petiolate], blade (somewhat fleshy), margins entire [dentate
4 KB (335 words) - 23:36, 5 November 2020
or cymose, sessile; spathes not winged. Flowers unisexual, staminate and pistillate on same plants or on different plants, submersed, sessile, nearly sessile
5 KB (442 words) - 21:29, 5 November 2020
modified leaves; disarticulation in the rames, beneath the sessile spikelets. Spikelets sessile, subtending a hairy pedicel (2 pedicels in the terminal spikelet
5 KB (412 words) - 18:57, 11 May 2021
Leaves basal and cauline, simple; proximal leaves petiolate, distal leaves sessile or nearly so; cauline leaves alternate. Leaf blade unlobed, oblong-ovate
3 KB (234 words) - 22:51, 5 November 2020
trailing, (branching from base); twigs (terete), puberulent and sparsely sessile- or stipitate-glandular, becoming glabrate, (older twigs without peglike
4 KB (343 words) - 23:47, 5 November 2020
fragrant (odor extremely unpleasant in I. foetidissima), pedicellate or sessile; perianth epigynous, white, yellow, tan, brown, copper-red, maroon, blue
16 KB (1,109 words) - 22:17, 5 November 2020
apex obtuse to awned. Perigynia ascending, distinctly 8-veined or more, sessile, broadly to narrowly ovate, acutely trigonous in cross section, base tapering
6 KB (315 words) - 21:43, 5 November 2020
superior, spirally arranged on elongate receptacle (torus), stalked or sessile, free or ±concrescent, 1-locular; placentation marginal, placenta 1; ovules
6 KB (468 words) - 23:05, 4 February 2022
proximally whorled, distally alternate; petiolate (at least basal) or sessile; blades mostly lance-linear, oblanceolate, ovate, or spatulate, margins
5 KB (333 words) - 21:15, 5 November 2020
glabrous. Leaves basal (withering by flowering) and cauline; alternate; sessile (sometimes decurrent); blades 1-nerved, linear, subulate to lanceolate or
5 KB (309 words) - 21:05, 5 November 2020
thickened proximally, terete or 4-angled, regularly but tardily loculicidal; sessile. Seeds numerous, in 1 row per locule, usually monomorphic and narrowly obovoid
7 KB (613 words) - 23:29, 2 December 2022
bracts sessile. Flowers: sepals ± erect, (purplish), ovate to triangular, margins eciliate or sparsely glandular, surfaces glabrous or sparsely sessile-glandular;
3 KB (278 words) - 18:18, 6 November 2020
cordate, apex acute or obtuse; pollinia clavate with slender viscidium; ovary sessile, cylindric. North America, South America, Eurasia, Australia. Species 45
17 KB (439 words) - 22:11, 5 November 2020
cauline (much reduced, bractlike in annuals and some perennials); usually sessile; blades linear to oblong, oblanceolate, or spatulate, usually runcinate
11 KB (983 words) - 20:53, 5 November 2020
Inflorescences 6–12-flowered; bracteoles caducous, membranous, margins sessile-glandular. Flowers 15–20 mm diam.; sepal margins subentire or glandular-serrate;
6 KB (459 words) - 00:00, 6 November 2020
cauline; petiolate or sessile; basal rosulate or not, petiolate, blade margins dentate, sinuate, or pinnatisect; cauline petiolate or sessile, blade (base not
5 KB (416 words) - 23:35, 5 November 2020
petiolate or sessile; basal (withered with age), rosulate, petiolate, blade margins entire, dentate to sinuate, or runcinate; cauline subsessile or sessile [shortly
5 KB (346 words) - 23:36, 5 November 2020
(10–)20–80(–120) cm. Leaves mostly basal and/or cauline; alternate; petiolate or sessile; blades 1- or 3-nerved, mostly elliptic, linear, oblanceolate, ovate, or
3 KB (298 words) - 21:08, 5 November 2020
distally), smooth, apex not constricted proximal to the tubercle. Tubercles sessile on achene summit, dorsiventrally greatly compressed, proportionally much
4 KB (464 words) - 21:38, 5 November 2020
margins entire or shallowly serrate or crenate; cauline subpetiolate or sessile, blades narrowly lanceolate, linear, or subulate, bases attenuate, slightly
4 KB (294 words) - 20:58, 5 November 2020
branching, prostrate and reniform or polyreniform, or nearly erect. Leaves sessile, alternate, often imbricate, in 2 ranks along upper side of stem, 0.6–2
3 KB (382 words) - 21:23, 5 November 2020
(basal often withering before flowering); alternate [opposite]; petiolate or sessile; margins entire or dentate to serrate [pinnately divided]. Heads heterogamous
4 KB (365 words) - 20:56, 5 November 2020
orbicular scales, Trichomanes membranaceum). Soral involucres conic. Sporangia sessile, formed at base of exserted bristle and carried outward by intercalary growth
5 KB (375 words) - 21:22, 5 November 2020
lanceolate or spatulate to ovate, 0.4-2.5 cm wide, abruptly petiolate or sessile > 18 17 Petals white, pinkish, or rose, candy-striped, rarely yellow or
11 KB (585 words) - 23:01, 5 November 2020
subsessile, forked, stellate, or dendritic [simple]. Cauline leaves petiolate or sessile; blade base not auriculate [auriculate], margins entire, dentate, or lobed
2 KB (169 words) - 23:36, 5 November 2020
mostly simple. Cauline leaves [rarely absent], petiolate, subsessile, or sessile; blade base not auriculate, margins usually pinnately or palmately lobed
2 KB (160 words) - 23:30, 5 November 2020
resin canals absent. Cones axillary, appearing terminal, short-peduncled [sessile], disintegrating at maturity; sporophylls densely crowded, spirally arranged
3 KB (291 words) - 21:24, 5 November 2020
bearing hairs but no true roots. Leaves in whorls of 3, with 2 leaves green, sessile or short-petioled, flat, entire, and floating, 1 leaf finely dissected,
2 KB (162 words) - 21:24, 5 November 2020
round, indusia absent. Sporangia 2–many on slightly elevated receptacle, sessile to subsessile; annulus complete, transverse, medial, longitudinally dehiscent;
3 KB (246 words) - 21:23, 5 November 2020
internode hairs about as long as, but not obscuring, the sessile spikelets. Lower glumes of sessile spikelets scabrous, often with 2 conspicuous veins between
2 KB (161 words) - 18:57, 11 May 2021
about twice as long as and more or less obscuring the sessile spikelets. Lower glumes of sessile spikelets glabrous, sometimes scabrous, not conspicuously
2 KB (137 words) - 18:57, 11 May 2021
persistent rhizome attached; several species producing additional bulbs as sessile bulbels or at the ends of slender stolons or vertical droppers, these species
15 KB (1,032 words) - 22:14, 5 November 2020
linear, membranous, margins sessile- or stipitate-glandular, (larger) ± persistent, narrowly oblong, ± herbaceous, margins sessile- or stipitate-glandular
10 KB (868 words) - 00:00, 6 November 2020
distally, (angular [not angular]). Leaves basal and cauline; petiolate and sessile; basal rosulate or not, (and proximal cauline) petiolate, blade margins
7 KB (659 words) - 23:35, 5 November 2020
alternate (by abortion of 1 of each pair), simple; stipules absent; petiolate, sessile, or subsessile; blade venation palmate or parallel, no dominant midrib,
6 KB (666 words) - 11:33, 9 May 2022
subterete, regularly, sometimes tardily, loculicidally dehiscent; usually sessile, sometimes pedicellate. Seeds numerous, in 1 row per locule, narrowly obovoid
10 KB (763 words) - 23:30, 2 December 2022
decumbent, usually not glaucous, pubescent or glabrous. Leaves alternate; sessile, subsessile, or petiolate; usually not strongly dimorphic; blade surfaces
9 KB (533 words) - 23:56, 2 December 2022
prostrate to erect, simple to much branched. Leaves cauline; opposite; usually sessile; blades mostly linear to elliptic, oblanceolate, oblong, or obovate, margins
11 KB (928 words) - 21:13, 5 November 2020
petiolate (petiole basal margins always coarsely, spreading-ciliate) or sessile; proximal blades 1-nerved, ovate-oblanceolate (bases tapering), hairy; distal
20 KB (1,289 words) - 21:03, 5 November 2020
lateral buds (sometimes subterminal); staminate on flowering branchlet or sessile; pistillate on flowering branchlet, usually stout, globose, or subglobose
17 KB (692 words) - 23:34, 5 November 2020
of the primary; primaries sometimes becoming spines) cauline; alternate; sessile (or obscurely petiolate); blades obscurely palmately nerved (usually 1-nerved)
6 KB (343 words) - 21:00, 5 November 2020
present or absent. Leaves mostly floating (vernal leaves submersed; blades sessile, broad). Leaf blade orbiculate to widely ovate or elliptic, basal lobes
7 KB (482 words) - 22:50, 5 November 2020
Inflorescences terminal in clusters, or axillary on short branches. Flowers sessile or subsessile, usually open only in sunshine; sepals broadly clasping at
8 KB (346 words) - 22:56, 5 November 2020
spreading-hairy distally (hairs soft to stiff). Leaves basal and cauline; alternate; sessile or petiolate; blades 1-nerved, broadly oblanceolate to linear-lanceolate
6 KB (592 words) - 21:05, 5 November 2020
Treatment on page 439. Twigs eglandular-hairy, sessile glands beneath. Petioles 4–8 mm, eglandular-hairy, sessile glands beneath. Inflorescences: immature inflorescence
2 KB (156 words) - 23:46, 5 November 2020
solid and homogeneous pith; distal leaflets largest; staminate catkins in sessile or pendunculate fascicles, stamens 3-10(-15) per flower; fruits with husks
4 KB (368 words) - 22:47, 5 November 2020
cauline; petiolate, sessile, or subsessile; basal not rosulate [rosulate], petiolate, blade margins entire, pinnatifid, or lyrate; cauline sessile (subsessile
4 KB (350 words) - 23:35, 5 November 2020
cauline; petiolate or sessile; basal (withered by fruiting), not rosulate, petiolate, blade margins pinnatifid or pinnatisect; cauline sessile or subsessile,
5 KB (357 words) - 23:36, 5 November 2020
(often enlarged by persistent leaf bases); densely pubescent, trichomes (sessile or short-stalked), rays furcate or bifurcate, (nearly smooth to finely tuberculate)
4 KB (327 words) - 18:16, 6 November 2020
Stems erect, branched [unbranched]. Leaves basal and cauline; petiolate or sessile; basal rosulate or not, petiolate, blade margins usually lyrate-pinnatifid
3 KB (281 words) - 23:35, 5 November 2020
3–7 at each node, or leaves opposite at 4+ proximalmost nodes, submersed, sessile; blade linear to linear-lanceolate, apex acute; midvein without lacunae
4 KB (394 words) - 21:32, 5 November 2020
medially, staminate proximally; sessile inflorescences 2 or more, with solitary flowers pistillate flower only, 2 or more, sessile. Flowers bisexual and unisexual
2 KB (180 words) - 21:32, 5 November 2020
usually opposite, rarely whorled, distal sometimes alternate; petiolate or sessile; blades simple, compound (leaflets petiolulate), or 1–3+-pinnatisect or
17 KB (808 words) - 21:12, 5 November 2020
translucent, longitudinal groove, bearing 1-many sessile-pedicellate spikelet pairs and a terminal triplet of 1 sessile and 2 pedicellate spikelets, basal pair(s)
4 KB (314 words) - 18:57, 11 May 2021
opposite. > 5 2 Cones always sessile; seeds scabrous. Ephedra torreyana 2 Cones usually with short, scaly peduncles (rarely sessile); seeds usually smooth (sometimes
7 KB (439 words) - 20:18, 11 January 2021
S. babylonica), from lateral buds; staminate on flowering branchlet or sessile, usually slender or stout, sometimes subglobose; pistillate on flowering
9 KB (400 words) - 23:32, 5 November 2020
at anthesis, alternate, proximal leaves petiolate, distal leaves nearly sessile. Leaf blade palmately finely dissected, ±semicircular, lobes less than 2
5 KB (393 words) - 20:37, 6 November 2020
connected by thickened ridge or transverse wing from which stipules arise, sessile; stipules 2 per node, white, ovate to spatulate, margins fringed to ciliate
3 KB (294 words) - 23:15, 5 November 2020
rhizomatous or stoloniferous. Leaves mostly basal or mostly cauline at flowering; sessile or petiolate, petioles ± winged (often clasping at bases); blades mostly
4 KB (326 words) - 20:50, 5 November 2020
branched distally, with 2–5 papery bracts sheathing proximally. Leaves sessile or subsessile; blade broadly ovate to oblanceolate, veinlets forming loose
6 KB (392 words) - 22:13, 5 November 2020
arranged spikelike branches; branches triquetrous, spikelets subsessile or sessile, solitary, in 2 rows, lower lemmas appressed to the branch axes; disarticulation
4 KB (362 words) - 18:57, 11 May 2021
spiny. Stems usually erect, simple or branched. Leaves basal and cauline; sessile or petiolate; blade margins dentate to pinnately 1–3-pinnately lobed or
3 KB (268 words) - 20:50, 5 November 2020
Stems erect to prostrate, branched, terete. Leaves connate proximally, sessile; blade 1-veined, subulate to linear, not succulent, apex acute or obtuse
4 KB (361 words) - 23:10, 5 November 2020
subshrubs]; (caudex woody); not scapose; pubescent, trichomes minutely stalked to sessile, stellate, 6–10-rayed [lepidote]. Stems erect or ascending, often (paniculately)
4 KB (297 words) - 23:32, 5 November 2020
Staminate flowers sessile, 5 mm; petals yellow; anthers white, covering most of petal adaxial surface. Pistillate flowers sessile, somewhat flattened
4 KB (401 words) - 20:17, 5 November 2020
absent; twigs densely glandular-hairy, puberulent, or finely tomentose with sessile glands. Leaves: petiole 3–8 mm; blade dark green, not glaucous, dull, oblong-ovate
3 KB (231 words) - 23:46, 5 November 2020
cm. Stems prostrate or erect. Leaves cauline; opposite or subopposite; sessile [petiolate]; blades (1-, 3-, or 5-nerved from bases) acerose, elliptic,
7 KB (616 words) - 21:10, 5 November 2020
vertical. Basal leaves 1-5, ternate; petiole 5-35 cm; terminal leaflet sessile or nearly so, oblanceolate to obovate, 2-9(-12) × 2-5(-7) cm, base cuneate
5 KB (462 words) - 17:58, 6 November 2020
or proximal distant, sessile or short-pedunculate, globose to short-cylindric, 4–17.5 × 3–11 mm; terminal staminate spike sessile or pedunculate, 5–25
5 KB (377 words) - 19:37, 6 November 2020
much-branched, sometimes broomlike, usually richly pubescent. Leaves opposite, sessile or short-petiolate, most abundant on proximal 1/2 of plant; blade linear
8 KB (668 words) - 23:01, 5 November 2020
member of a pair), connate by a line of tissue between adjacent stipules, sessile or virtually so; stipules 2 per node, inconspicuous, white, ovate to deltate
4 KB (379 words) - 23:14, 5 November 2020
glandular-pubescent, glaucous or not; basal and proximal cauline petiolate; cauline sessile, petiolate, or short-petiolate, blade obovate, ovate, spatulate, oblanceolate
12 KB (536 words) - 20:32, 5 November 2020
elongate after flowering). Leaves basal and cauline; alternate; petiolate or sessile; basal (usually appearing after heads) palmately or palmati-pinnately nerved
8 KB (1,008 words) - 21:00, 5 November 2020
crowded, appressed or ascending to spreading, becoming deflexed); alternate; sessile or petiolate; blades prominently 1-nerved plus sometimes 1–2 pairs of collateral
6 KB (460 words) - 14:15, 7 March 2024
stolons absent; corms absent; tubers absent. Roots not septate. Leaves sessile or petiolate; petiole triangular; blade with translucent markings absent
4 KB (326 words) - 20:01, 22 September 2022
branched (striate). Leaves basal and/or cauline; alternate; petiolate or sessile; blades (1- or 3-nerved) elliptic, linear, linear-elliptic, linear-oblanceolate
5 KB (316 words) - 21:08, 5 November 2020
androgynous, rarely also with some staminate flowers proximally or pistillate, sessile, prophylls absent. Proximal pistillate scales yellow or brown, sometimes
5 KB (340 words) - 21:41, 5 November 2020
roots. Leaves basal and cauline, proximal leaves petiolate, distal leaves sessile or nearly so; cauline leaves alternate. Leaf blade 2-ternately compound;
6 KB (519 words) - 22:49, 5 November 2020
reproduction absent. Sexual condition autoicous or cladautoicous; perigonia sessile or stalked, perigonial bracts (2–)4–6(–7) mm, ovate-lanceolate, concave
13 KB (1,330 words) - 22:26, 5 November 2020
bracteolate cymes of (1–)3(–8) sessile or pedicellate flowers; pistillate solitary or rarely fasciculate, 1 flower per node, sessile or subsessile, unbranched
8 KB (790 words) - 22:10, 5 November 2020
basal (sometimes in rosettes) or basal and cauline; alternate; petiolate or sessile; blades obovate to cuneate or linear, usually 1–2-pinnately or -palmately
5 KB (375 words) - 20:57, 5 November 2020
to tomentose, sometimes stipitate-glandular. Leaves cauline; alternate; sessile or subpetiolate; blades mostly 1-nerved, linear to lanceolate or oblanceolate
7 KB (462 words) - 15:06, 25 April 2023
as long as wide; lateral spikes gynecandrous, pistillate, or staminate, sessile, without prophylls; terminal spike gynecandrous, pistillate, or staminate
6 KB (376 words) - 21:41, 5 November 2020
or tuberous. Leaves 2-ranked or spirally arranged, not glaucous; blade sessile or petiolate. Inflorescences terminal, leaf-opposed; cymes 1–2, enclosed
6 KB (326 words) - 21:32, 5 November 2020
or)4-angled or narrowly (3- or)4-winged, abruptly constricted or tapered to base; sessile. 2n = 14. North America, Mexico, Central America (Guatemala). Species 13
8 KB (509 words) - 23:16, 2 December 2022
short; connective blunt to nearly spheric or cuboid; pistils 2-8(-12), sessile to stipitate, distinct, glabrate; ovules several (sometimes few) in 2 staggered
7 KB (405 words) - 22:50, 5 November 2020
retrorsely hairy, glaucous or not; basal and proximal cauline petiolate; cauline sessile or short-petiolate, blade subcordate, ovate, spatulate, oblanceolate, lanceolate
5 KB (417 words) - 20:31, 5 November 2020
distally, (usually glabrous distally). Leaves basal and cauline; petiolate, sessile, or subsessile; basal rosulate, petiolate, blade margins entire, toothed
5 KB (504 words) - 23:35, 5 November 2020
proximal opposite (often in winter–spring rosettes), most alternate; ± sessile; blades oblanceolate to linear or lance-linear, proximal usually 1–2-pinnatifid
5 KB (425 words) - 21:13, 5 November 2020
unbranched and spicate or racemose, ultimate inflorescence unit cymose, sessile or pedunculate, often reduced to 1 flower. Flowers unisexual, staminate
6 KB (717 words) - 22:10, 5 November 2020
stolons absent; corms absent; tubers absent. Roots not septate. Leaves sessile or petiolate; petioles triangular, rarely terete; blade with translucent
4 KB (317 words) - 20:36, 6 November 2020
leaves). Gemmiferous branchlets and gemmae absent. Strobili solitary and sessile or multiple and stalked, apex blunt, acute, or with sterile apical projection;
5 KB (383 words) - 21:23, 5 November 2020
conspicuous to inconspicuous, small, mostly unenlarged. Winter buds nearly sessile, ovoid, apex acuminate; stalks usually not over 1 mm; scales 4–6, unequal
5 KB (379 words) - 14:55, 29 February 2024
dentate. Gemmiferous branchlets and gemmae absent. Strobili single and sessile or multiple and pedunculate, apex blunt to acute; peduncle, when present
5 KB (338 words) - 21:22, 5 November 2020
disarticulation in the rames, beneath the sessile spikelets. Spikelets in heterogamous sessile-pedicellate pairs. Sessile spikelets hemispherical, partly embedded
4 KB (382 words) - 18:58, 11 May 2021
subtending leaf sheath, with 1 sessile and 2 unequally pedicellate spikelets; disarticulation at the base of the sessile spikelets, sometimes also at the
3 KB (310 words) - 18:57, 11 May 2021
the rames, beneath the sessile spikelets. Spikelets in heteromorphic sessile-pedicellate pairs or appearing solitary and sessile, pedicels greatly reduced
3 KB (272 words) - 18:57, 11 May 2021
with sessile-glandular hairs and pubescent to villous and sparsely hirsute (hairs stiff, 2 mm). Inflorescences: axes often with glistening sessile-glandular
3 KB (287 words) - 23:57, 5 November 2020
Leaves opposite, axillary clusters of leaves often present, distinct, sessile; stipules 2 per node, white to tan, lanceolate and acuminate to widely triangular
8 KB (572 words) - 23:09, 5 November 2020
terete to ellipsoid, angular or grooved. Leaves mostly connate, mostly sessile, not congested at or near base of flowering stem; blade 1- or 3–5-veined
7 KB (503 words) - 23:07, 5 November 2020
Leaves persistent, crowded in rosettes at ends of branches, alternate, sessile, not connate basally; blade oblong-lanceolate or obovate, laminar to terete
3 KB (307 words) - 23:42, 5 November 2020
not septate. Leaves basal [alternate], submersed and floating [emersed], sessile or petiolate, sheathing proximally; blade with translucent markings absent
3 KB (273 words) - 21:30, 5 November 2020
staminate and pistillate on different (rarely on same) plants, inconspicuous, sessile; perianth absent or of small, undifferentiated sepals, hypogynous; pistils
3 KB (331 words) - 22:49, 5 November 2020
Trichomes simple or absent. Cauline leaves (sometimes absent), petiolate or sessile; blade base not auriculate, margins usually entire, sometimes dentate or
2 KB (178 words) - 23:36, 5 November 2020
ascending, veinless or weakly veined on faces, with 2, strong, marginal veins, sessile, ovate, obovate, or nearly circular, compressed-trigonous or almost flattened
3 KB (230 words) - 21:42, 5 November 2020
clasping, truncate, margins revolute, entire, abaxial surface glabrous or sessile-glandular. Inflorescences terminal, 2–400+-flowered, panicles well branched
5 KB (425 words) - 23:58, 5 November 2020
petiole and rachis with pricklets absent or sparse, glabrous or pubescent, sessile- or stipitate-glandular; leaflets 5–7(–9), terminal: petiolule (3–)5–17
7 KB (775 words) - 18:19, 6 November 2020
apex of pinna; basal basiscopic pinnule usually sessile, pinnatifid or rarely pinnate-pinnatifid, if sessile then with basal basiscopic pinnulet often equaling
5 KB (477 words) - 17:37, 24 September 2021
branched or simple, not jointed, not armed, not fleshy. Leaves alternate, sessile (or sometimes narrowed to pseudopetiole); blade linear, lanceolate, or lanceolate-elliptic
3 KB (247 words) - 22:59, 5 November 2020
not jointed, thick, glabrous or glabrescent. Leaves clustered distally, sessile or subsessile; blade obovate or oblong to lanceolate, surfaces glabrous
3 KB (198 words) - 23:23, 5 November 2020
or branched basally and distally. Leaves basal and cauline; petiolate or sessile; basal rosulate, petiolate, blade margins often entire, sometimes dentate
3 KB (268 words) - 23:35, 5 November 2020
erect to pendent, pedunculate, rachis swollen, fleshy. Flowers resupinate, sessile; dorsal sepal distinct and free; lateral sepals adnate to column foot forming
3 KB (218 words) - 22:12, 5 November 2020
from woody, subterranean or aboveground caudices, or single stems. Leaves sessile, in rosettes on caudices or at branch ends; blade linear-lanceolate, expanded
14 KB (782 words) - 22:18, 5 November 2020
branched, terete. Leaves basally connate, petiolate (basal in some species) or sessile (cauline); blade 1–5-veined, linear or elliptic to broadly ovate, not succulent
15 KB (867 words) - 23:09, 5 November 2020
Flowers bisexual; sepals 5(-10); filaments narrowly clavate. Achenes sessile to nearly sessile. North America. Species 1 (1 in the flora). None. Thalictrum thalictroides
2 KB (92 words) - 22:49, 5 November 2020
Leaves basal (persistent or absent at flowering) and cauline; alternate; sessile or petiolate (decurrent); blades (1–5-nerved) linear to lanceolate or spatulate
9 KB (613 words) - 21:00, 5 November 2020
with 2 large, solitary, homogamous sessile-pedicellate spikelet pairs at the base and 1-4 smaller, heterogamous sessile-pedicellate spikelet pairs distally
5 KB (467 words) - 14:41, 2 June 2022
Leaves usually mostly cauline (rarely mostly basal or basal and cauline); sessile or petiolate; blades ovate, elliptic, lanceolate, oblanceolate, spatulate
9 KB (628 words) - 20:50, 5 November 2020
sometimes deflexed, falcate or recurved); alternate; short-petiolate or sessile; blades with usually evident midnerves plus 0–2 pairs of fainter collateral
8 KB (637 words) - 21:02, 5 November 2020
coastal bluffs). Leaves mostly cauline; proximal opposite, most alternate; sessile; blades ovate, lanceolate, or oblanceolate to linear, sometimes 1–2-pinnatifid
10 KB (478 words) - 21:13, 5 November 2020
especially distally. Leaves: basal (in rosettes) and cauline; alternate; sessile; basal blades 1-nerved (net-veined), spatulate to oblanceolate (bases petiole-like)
10 KB (763 words) - 21:03, 5 November 2020
usually connate proximally, sometimes forming conspicuous, scarious cup, sessile, with or without axillary fascicles of leaves; blade 1-veined, linear to
8 KB (454 words) - 23:10, 5 November 2020
lower paleas if present, usually hyaline, 2-veined; upper florets bisexual, sessile, ovoid to ellipsoid, usually plano-convex, usually glabrous, not disarticulating
12 KB (809 words) - 18:56, 11 May 2021
caulescent; turions absent [present]. Leaves alternate to subopposite, submersed, sessile; sheath not persisting longer than blade, not leaving circular scar when
2 KB (166 words) - 21:30, 5 November 2020
than laterals, claw slender, not lobed; stamens 4. Capsules subterete; sessile or subsessile. California. Species 2 (2 in the flora). Section Eucharidium
3 KB (194 words) - 11:32, 9 May 2022
Erythranthe cardinalis 43 Leaf blade surfaces adaxially glabrous or minutely sessile- or stipitate-glandular along veins; fruiting calyces (27–)29–34 mm, lobes
44 KB (1,520 words) - 20:28, 5 November 2020
glabrous or glabrescent, both faces usually stipitate- or sessile-glandular. Heads disciform, (sessile) in spiciform arrays (at ends of branches). Involucres
4 KB (331 words) - 20:56, 5 November 2020
Roots: tubers absent. Stems with glistening glandular hairs (stipitate and sessile) and pubescent to villous and hirsute (hairs stiff, scattered, erect, 2–3
4 KB (383 words) - 23:57, 5 November 2020
Leaves (green to graysih) soft to firm; basal withering by flowering, sessile, blades (1–3-nerved) elliptic-lanceolate, 10–43 × 5–15 mm, bases attenuate
5 KB (423 words) - 19:20, 6 November 2020
unbranched or branched distally. Leaves basal and cauline; petiolate or sessile; basal usually not rosulate, petiolate, blade margins usually lyrate, pinnatifid
5 KB (447 words) - 23:35, 5 November 2020
short. Flowering stems submersed and growing to water surface, or emersed. Sessile leaves submersed, forming basal rosette, or emersed on elongate stem; blade
5 KB (363 words) - 22:16, 5 November 2020