apices oblique), ribs 5, faces smooth between ribs (pericarps without resin sacs, or resin sacs within lateral ribs) Matricaria 27 Cypselae trigonous, ± compressed
18 KB (990 words) - 20:56, 5 November 2020
basal ones) persisting for life of fascicle or shed after first season; resin canals 2 or more. Pollen cones in dense, spikelike cluster around base of
26 KB (1,313 words) - 21:22, 5 November 2020
juvenile leaves linear, flattened, spreading; often with solitary abaxial resin gland; resin canal present. Pollen cones maturing and shed annually, solitary,
12 KB (1,137 words) - 20:26, 28 December 2023
glabrate or glabrous, usually resin-gland-dotted (sometimes ± pitted), adaxial faces ± scabrellous or glabrate, sometimes resin-gland-dotted (rarely pitted)
9 KB (628 words) - 20:50, 5 November 2020
shoots; juvenile leaves (when present) borne on long shoots, scalelike; resin canals present. Pollen cones maturing and shed annually, solitary or clustered
9 KB (768 words) - 21:21, 5 November 2020
hairs producing crystalline substance that forms farinose coating (Primula); resin canals sometimes present (Hottonia). Stems sometimes inflated (Hottonia)
9 KB (958 words) - 23:44, 5 November 2020
villous), often gland-dotted (pericarps sometimes with myxogenic cells, without resin sacs; embryo sac development monosporic); pappi usually 0 (coroniform in
11 KB (1,203 words) - 20:57, 5 November 2020
sometimes flat to round topped in age. Bark initially thin, smooth, bearing resin blisters, in age furrowed and/or flaking in plates. Branches whorled, irregular
12 KB (987 words) - 21:24, 5 November 2020
[shrubs], perennial, usually not succulent, glabrous or stipitate-glandular; resin canals sometimes obvious. Rhizomes usually present; roots fibrous. Stems
13 KB (901 words) - 23:44, 5 November 2020
smooth, nerved, or ribbed (glabrous or hirsutulous to strigillose, sometimes resin-gland-dotted as well); pappi usually persistent, usually in 2 series (outer
7 KB (548 words) - 20:50, 5 November 2020
shrubs, or trees, deciduous (evergreen in Ardisia), often with secretory resin canals appearing as dark dots, streaks, or punctations on vegetative and/or
7 KB (736 words) - 23:44, 5 November 2020
perennial herbs, often evergreen, usually glandular-punctate or with secretory resin canals appearing as dark dots or streaks on vegetative and/or floral parts
4 KB (395 words) - 23:44, 5 November 2020
at base to form sheath, generally ephemeral, mostly not photosynthetic; resin canals absent. Pollen cones compound, 1–10 in whorls at nodes; each compound
4 KB (480 words) - 21:25, 5 November 2020
twisted so as to appear 2-ranked, linear to linear-lanceolate, decurrent; resin canals present or absent. Pollen cones maturing and shed annually, solitary
5 KB (400 words) - 21:23, 5 November 2020
green, faces glabrous or tomentose, sometimes gland-dotted, sometimes with resin pockets. Receptacles flat, pitted, epaleate. Disc florets 8–34, bisexual
7 KB (461 words) - 20:58, 5 November 2020
gray to reddish brown, thin and scaly (with thin plates), sometimes with resin blisters (especially in Picea engelmannii and P. glauca), becoming relatively
5 KB (335 words) - 20:35, 6 November 2020
rounded, obtuse, or truncate teeth tipped by resin globules. Sporadically, individual plants may have some teeth resin-tipped and some teeth apiculate; such specimens
18 KB (1,335 words) - 21:07, 5 November 2020
apices deeply cleft to truncate; petioles equal to or exceeding blades; resin canals absent. Pollen cones borne on spurs, catkinlike; sporophylls distributed
2 KB (161 words) - 21:24, 5 November 2020
conic, paleate; paleae membranous, ± folded (sometimes each with central resin duct). Ray florets [0] 3–5(–12+), usually pistillate and fertile; corollas
6 KB (563 words) - 20:56, 5 November 2020
Barbara Alongi Copyright: Flora of North America Association Shrubs or trees, resin canals absent. Stems erect, much-branched; young branches puberulous, hairs
3 KB (223 words) - 23:44, 5 November 2020
(without resin sacs). Cypselae cylindro-obconic, ribs 5–8(–10), faces glabrous, usually gland-dotted (pericarps without myxogenic cells or resin sacs; embryo
4 KB (437 words) - 20:57, 5 November 2020
appears in FNA Volume 2. Trees conic, evergreen. Bark initially smooth, with resin blisters; in age reddish brown, corky, furrowed. Branches often pendulous
3 KB (208 words) - 21:24, 5 November 2020
to cuneate or obcordiform, laterally compressed, margins winged or not, resin ducts present, faces often puberulent; pappi persistent, usually of 2–3 sclerified
5 KB (309 words) - 21:05, 5 November 2020
throats narrowly campanulate (cylindric or compressed), lobes 5, deltate (with resin sacs). Cypselae trigonous, ± compressed (apices truncate), ribs 3–5 (0–2
7 KB (713 words) - 20:57, 5 November 2020
spines]; leaflets entire or dentate [spinose], venation dichotomous [netted]; resin canals absent. Cones axillary, appearing terminal, short-peduncled [sessile]
3 KB (291 words) - 21:24, 5 November 2020
whitish or brownish bands; apex sharp-pointed, spine-tipped, sharp to touch; resin canal central. Pollen cones ovoid or oblong, with 6–8 whorls of 4 sporophylls
3 KB (248 words) - 21:24, 5 November 2020
maturity). Disc florets 25–400, bisexual, fertile; corollas yellow (with orange resin ducts), tubes shorter than tubular to funnelform throats (tubes or limbs
6 KB (592 words) - 21:05, 5 November 2020
toothed (rarely entire), apices obtuse to acute, abaxial or both faces usually resin-gland-dotted. Heads ± discoid, sessile, not individually bracteate, in clusters
4 KB (326 words) - 20:50, 5 November 2020
with scattered resin blisters; seeds 4-6 mm. > 4 4 Leaves rarely resin-dotted; c coastal California. Cupressus sargentii 4 Leaves resin-dotted; interior
5 KB (427 words) - 21:23, 5 November 2020
gland-dotted (pericarps with myxogenic cells only in S. potentilloides, without resin sacs); pappi usually 0 (of 3–5 subulate scales in S. compacta). x = 9. w
5 KB (375 words) - 20:57, 5 November 2020
blade mostly cordate, palmately lobed, sometimes unlobed; surfaces abaxially resin-dotted and×or gland-dotted. Inflorescences: staminate inflorescences axillary
3 KB (207 words) - 22:46, 5 November 2020
yellowish, soft, brittle, even-grained; secretory canals in outer pith; resin yellowish. Leaves alternate, not aromatic; stipules absent; petiole and veins
3 KB (331 words) - 22:49, 5 November 2020
Barbara Alongi Copyright: Flora of North America Association Shrubs or trees, resin canals absent. Stems erect, much-branched; young branches lepidote, hairs
3 KB (277 words) - 23:44, 5 November 2020
outer shorter, all resin-nerved). Receptacles conic, paleate (paleae falling, linear, flattish or weakly conduplicate, scarious, resin-nerved). Ray florets
3 KB (219 words) - 21:12, 5 November 2020
America Association Herbs, annual or perennial, not succulent, glabrous; resin canals usually present. Rhizomes absent; roots fibrous or a taproot. Stems
4 KB (351 words) - 23:44, 5 November 2020
cylindric, throats campanulate to funnelform, lobes (2–)4, ± deltate (without resin sacs). Cypselae: (bodies) ± obovate to oblanceolate or oblong-cuneate, ob-compressed
5 KB (360 words) - 20:57, 5 November 2020
deltate (without resin sacs). Cypselae ± columnar to obovoid, ribs ± 10, faces glabrous (pericarps with myxogenic cells on ribs and resin sacs between ribs;
4 KB (331 words) - 20:57, 5 November 2020
± deltate (sometimes one larger than others, usually each with central resin canal). Cypselae obovoid to oblong, ob-compressed or -flattened, ribs 2,
4 KB (357 words) - 20:57, 5 November 2020
dilated, ± gland-dotted), throats campanulate, lobes 5, deltate (without resin sacs). Cypselae dimorphic: outer (ray) 3-angled, each angle usually ± winged
3 KB (341 words) - 20:57, 5 November 2020
obovate to lance-deltate or lanceolate (not carinate, usually each with a resin canal), margins and apices (colorless or stramineous to pale brown) scarious
4 KB (303 words) - 20:57, 5 November 2020
nearly glabrous, adaxial faces sparsely scabrellous or glabrate, both usually resin-gland-dotted. Heads discoid (pedunculate, each subtended by 3–8+, ± foliaceous
3 KB (316 words) - 20:50, 5 November 2020
natural population of S. officinalis failed to produce resin (N. Zeybek 1970). To my knowledge, resin induction in any of our native species has not been
9 KB (923 words) - 23:45, 5 November 2020
developed, subepidermal resin pocket nearly as wide as bracts, sometimes a central pocket and 2+ smaller, lateral ones (resin pockets sometimes formed
3 KB (242 words) - 19:24, 6 November 2020
Wilson-Ramsey Copyright: Flora of North America Association Herbs, perennial; resin canals apparent. Stems erect or ascending to prostrate or arching, simple
4 KB (312 words) - 23:44, 5 November 2020
to rounded; surfaces abaxially glabrous to tomentose, lightly to heavily resin-coated. Inflorescences: staminate catkins in 1 cluster of 2–4, formed late
5 KB (379 words) - 14:55, 29 February 2024
the adaxial side of a leaf blade at its junction with the petiole, secrete resins onto young, expanding leaves (J. D. Curtis and N. R. Lersten 1978). Poplars
29 KB (2,619 words) - 23:31, 5 November 2020
ciliate, faces glabrous or scabrous, gland-dotted (sometimes in ± deep, resin-filled pits, sometimes sessile) or pustulate, often ± resinous. Heads discoid
6 KB (460 words) - 14:15, 7 March 2024
(yellowish). Winter buds yellow-brown, usually densely stiffly hairy, resinous (resin yellow); terminal buds (4–)7–11(–14) mm; flowering buds separated on branchlets
6 KB (715 words) - 18:15, 6 November 2020
these angled, projected forward, sheath absent; apex rounded or notched; resin canals 1. Cones borne on year-old twigs. Pollen cones solitary, globose,
4 KB (315 words) - 21:24, 5 November 2020
weakly developed, non- or weakly spinulose projection, gland-dotted, without resin pockets or pockets small, weakly developed (var. decumbens and var. menziesii)
5 KB (211 words) - 20:58, 5 November 2020
margins entire or dentate (pinnately lobed or dissected), faces abaxially resin-gland-dotted, adaxially often tomentose. Heads discoid, in leafy-bracted
4 KB (379 words) - 20:49, 5 November 2020
subapical patch, midnerves evident on proximal 1/2 or throughout, subapical resin ducts 0 or slightly darker, thickened and expanded, (margins membranous,
4 KB (348 words) - 19:32, 6 November 2020
Stems ascending, green, soon becoming tan, glabrous or puberulent, sometimes resin-dotted, often resinous. Leaves ascending, spreading, or deflexed; sessile;
5 KB (397 words) - 19:25, 6 November 2020
usually densely strigose and gland-dotted, each margin usually with an adaxial resin gland; receptacles plus paleae and florets = discs, 5–70 × 5–18 mm). Ray
5 KB (342 words) - 21:09, 5 November 2020
hemispheric, paleate; paleae ± lanceolate, ± navicular (each with central resin duct). Ray florets 0. Disc florets mostly 60–250+, bisexual, fertile; corollas
3 KB (289 words) - 20:57, 5 November 2020
conic, paleate; paleae ± folded (carinate, each with central, red-brown resin duct). Ray florets 12–18+, neuter or styliferous and sterile; corollas orange
4 KB (352 words) - 20:56, 5 November 2020
apex rounded to nearly acute; stalk 1–3 mm; scales 2–3, equal, valvate, resin-coated. Leaf blade narrowly ovate to elliptic, base cuneate to narrowly rounded
4 KB (326 words) - 15:00, 29 February 2024
annual or perennial, not cushion- or mat-forming, aquatic, not succulent; resin canals obvious. Rhizomes absent; roots fibrous. Stems mostly submerged, ascending
3 KB (295 words) - 23:44, 5 November 2020
glabrous (pericarps with myxogenic cells in longitudinal rows, without resin sacs); pappi 0. x = 9. Introduced; s, w Europe, n Africa. Species 2 (2 in
4 KB (296 words) - 20:56, 5 November 2020
Disc florets (13–)20–70, bisexual, fertile; corollas yellow (with orange resin ducts), tubes 2 times longer than narrowly funnelform throats, lobes 5, erect
4 KB (398 words) - 21:05, 5 November 2020
cauline dentate or entire, faces loosely tomentose or glabrate, puberulent and resin-gland-dotted. Heads discoid, in (leafy-bracted) corymbiform or paniculiform
4 KB (378 words) - 20:49, 5 November 2020
long-hairy. Winter buds greenish yellow, glabrous or stiffly hairy, resinous (resin yellow, moderately fragrant); terminal buds (6–)8–15(–21) mm; flowering buds
10 KB (1,262 words) - 18:16, 6 November 2020
deltate (without resin sacs). Cypselae ± columnar, ribs 8–10 (not winged), faces probably glabrous (pericarps without myxogenic cells or resin sacs); pappi
3 KB (214 words) - 20:57, 5 November 2020
diam. Leaves with conspicuous, pitlike, abaxial gland that produces drop of resin, slightly glaucous. Pollen cones 2–3 × 2–2.5 mm; pollen sacs 3–5. Seed cones
2 KB (181 words) - 21:24, 5 November 2020
lance-deltate or lanceolate (not keeled abaxially, usually each with central resin canal), unequal, margins and apices scarious (tips of inner usually dilated)
3 KB (257 words) - 20:57, 5 November 2020
5, deltate (without resin sacs). Cypselae ± columnar, ribs 7–12, faces probably glabrous (pericarps without myxogenic cells or resin sacs); pappi 0 (cypselar
3 KB (247 words) - 20:57, 5 November 2020
spinose-toothed; all with apices rounded to acute, faces glabrous or glabrate, resin-gland-dotted. Heads pseudo-radiant (see here at corollas), ± pedunculate
3 KB (239 words) - 20:50, 5 November 2020
rounded; stalks 1–3 mm; scales 2–3, subequal, often poorly developed, heavily resin-coated. Leaf blade narrowly elliptic, oblong, or narrowly obovate, 4.5–9
3 KB (288 words) - 22:50, 5 November 2020
rounded to acute, abaxial faces ± hirtellous to densely piloso-strigillose, resin-gland-dotted, adaxial faces ± scabrellous or glabrate. Heads discoid, ± pedunculate
3 KB (236 words) - 20:50, 5 November 2020
abaxial keel, sessile, base decurrent, sheath absent, apex pointed or rounded; resin canals 2. Pollen cones solitary, ovoid-cylindric, yellowish. Seed cones maturing
6 KB (474 words) - 21:23, 5 November 2020
usually gland-dotted, sometimes glabrous (pericarps without myxogenic cells or resin sacs, embryo sac development tetrasporic); pappi usually coroniform, rarely
5 KB (365 words) - 20:56, 5 November 2020
usually toothed (rarely entire), apices obtuse to acute, abaxial faces usually resin-gland-dotted. Heads ± discoid, sessile, not individually bracteate, in clusters
3 KB (263 words) - 20:50, 5 November 2020
lobes 5, deltate (without resin sacs). Cypselae ± obconic, ribs 5, faces glabrous (pericarps without myxogenic cells or resin sacs); pappi crowns of 6–12
3 KB (290 words) - 20:57, 5 November 2020
± ovate or elliptic (± navicular, carinate, sometimes each with central resin canal), unequal, margins and apices scarious. Receptacles [± flat] hemispheric
4 KB (413 words) - 15:37, 5 January 2023
not gland-dotted), throats ± campanulate, lobes (2–)5, deltate (without resin sacs). Cypselae mostly columnar to obovoid or fusiform, outer sometimes 3-angled
3 KB (286 words) - 20:57, 5 November 2020
Pedicels 0.5–2 cm, glabrous. Flowers: sepals 5, calyx streaked with black resin canals, 2–6 mm, minutely stipitate-glandular on margins (or glabrous), lobes
5 KB (422 words) - 23:45, 5 November 2020
streaked with dark resin canals, 5–8 mm, glabrous, lobes ovate to deltate, margins thin; petals 5, corolla yellow, finely streaked with black resin canals, campanulate
4 KB (369 words) - 23:45, 5 November 2020
America Association Herbs, perennial, not succulent, glabrous or glandular; resin canals rarely obvious. Rhizomes slender or tuberous; roots fibrous. Stems
4 KB (287 words) - 23:44, 5 November 2020
in 2 broad, pale bands; apex soft-pointed, mucronate, not sharp to touch; resin canal absent. Pollen cones globose, yellowish, with 4–16 peltate sporophylls
7 KB (669 words) - 21:21, 5 November 2020
Mentioned on page 324, 325. Shrubs or trees, all parts bearing spherical resin cavities; stolons absent. Stems ascending, glabrous. Leaves persistent, cauline
3 KB (235 words) - 20:31, 5 November 2020
evident on proximal 1/2, subapical herbaceous patches present, subapical resin ducts thickened and expanded apically. Disc florets 36–70. 2n = 18. Phenology:
2 KB (151 words) - 21:06, 5 November 2020
glabrous or glabrate to densely hairy. Winter buds reddish, glabrous, resinous (resin red, abundant, very fragrant, balsamic); terminal buds (8–)12–16(–20) mm;
9 KB (1,196 words) - 23:34, 5 November 2020
these more numerous toward leaf apex; apex slightly notched to rounded; resin canals large, ± median, away from margins, midway between abaxial and adaxial
5 KB (592 words) - 22:44, 20 February 2024
their widths (1–2 supernumerary ribs sometimes present), abaxial-apical resin glands elongate (lengths 2+ times widths), abaxial faces transversely rugose
4 KB (267 words) - 19:19, 6 November 2020
reddish brown to gray, glabrous or sparsely hairy, usually covered with resin-filled pits. Leaves (moderately crowded) ascending to spreading; blades linear
4 KB (323 words) - 20:59, 5 November 2020
8–1.5 mm, inner lance-ovate, 1–5 × 0.8–1.5 mm. Paleae 3–4.3 × 1.5–3 mm, resin glands oval, 1–1.8 mm. Ray florets 4–14; corollas yellow, purplish yellow
3 KB (301 words) - 19:19, 6 November 2020
glabrous to velutinous or occasionally tomentose, moderately to heavily resin-coated. Inflorescences: staminate catkins 2.5–9 cm. Infructescences 1.2–2
5 KB (361 words) - 14:53, 29 February 2024
young, becoming dark brown then gray, branched, twigs stipitate-glandular, resin coated. Leaves ascending; blades elliptic to obovate, 9–18 × 2.5–4 mm, midnerves
3 KB (302 words) - 21:05, 5 November 2020
rhizomatous, glabrous or hairy, with glandular canals, lacunae, or dots containing resins or waxes (amber), essential oils (pale, translucent), and/or, sometimes
9 KB (862 words) - 23:19, 5 November 2020
fewer toward leaf apex; apex usually rounded, sometimes acute or notched; resin canals small, near margins and abaxial epidermal layer. Pollen cones at pollination
5 KB (579 words) - 21:23, 5 November 2020
becoming whitish tan with age), simple, glabrous or scabridulous, often resin-coated. Leaves basal and cauline (stiffly erect to ascending); alternate;
4 KB (475 words) - 21:02, 5 November 2020
few stomates toward leaf apex; apex distinctly notched (rarely rounded); resin canals small, near margins and abaxial epidermal layer. Pollen cones at pollination
4 KB (422 words) - 21:23, 5 November 2020
throats urceolate to campanulate, lobes 4–5 (spreading), deltate [with resin sacs]. Cypselae obconic, slightly compressed (usually asymmetric, apices
5 KB (390 words) - 20:57, 5 November 2020
0.3–0.5mm thick, keeled abaxially, rounded adaxially, pale blue-green; resin canals 10–20µm from margins. Seed cones 1–2 × 0.5–1cm, usually on curved
4 KB (414 words) - 22:17, 20 February 2024
(including indurate styles). Seeds apically winged, 8-10 mm, marked with resin ducts; aborted seeds brownish, 1-2 mm, unwinged, irregular, resembling sawdust
5 KB (508 words) - 22:46, 5 November 2020
glabrous to sparsely pubescent, especially on veins, moderately to heavily resin-coated. Inflorescences: staminate catkins 3.5–6 cm. Infructescences 1.2–2
3 KB (260 words) - 18:11, 6 June 2022
diam. Leaves with conspicuous, pitlike, abaxial gland that produces drop of resin, sometimes glaucous. Pollen cones 2–3 × 2 mm; pollen sacs 3–5. Seed cones
2 KB (182 words) - 21:21, 5 November 2020
thick, keeled abaxially, with shallow convex midrib adaxially, pale green; resin canals 20–50 µm from margins, each surrounded by 5–7 epithelial cells. Seed
3 KB (282 words) - 21:21, 5 November 2020
spine-tipped); ribs 0, faces glabrous (pericarps without myxogenic cells or resin sacs); pappi 0. x = 9. Introduced; n Africa, widely adventive elsewhere.
3 KB (245 words) - 20:57, 5 November 2020
faces ± villous and obscurely nerved (pericarps without myxogenic cells or resin sacs); pappi 0. x = 9. w North America. Species 1. Separation of Picrothamnus
3 KB (304 words) - 20:57, 5 November 2020