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  • resources for Z. mays subsp. mays. None. Zea mays subsp. huehuetenangensis, Zea mays subsp. mays, Zea mays subsp. mexicana, Zea mays subsp. parviglumis
    5 KB (347 words) - 17:58, 11 May 2021
  • and genetic research, mostly involving the domesticated taxon, Zea mays subsp. mays. Examples of such work include Barbara McClintock's Nobel prize-winning
    10 KB (1,034 words) - 15:54, 30 November 2021
  • Zea mays subsp. mays (category Zea mays)
    Panicoideae tribePoaceae tribe Andropogoneae genusZea speciesZea mays subspeciesZea mays subsp. mays Hugh H. Iltis Common names: Corn Indian corn Maize Mais Treatment
    3 KB (314 words) - 17:58, 11 May 2021
  • Panicoideae tribePoaceae tribe Andropogoneae genusZea speciesZea mays subspeciesZea mays subsp. huehuetenangensis (H.H. Iltis & Doebley) Doebley Hugh H.
    2 KB (193 words) - 15:51, 30 November 2021
  • Zea mays subsp. parviglumis (category Zea mays)
    Panicoideae tribePoaceae tribe Andropogoneae genusZea speciesZea mays subspeciesZea mays subsp. parviglumis H.H. Iltis & Doebley Hugh H. Iltis Common names:
    3 KB (248 words) - 16:07, 30 November 2021
  • Zea mays subsp. mexicana (category Zea mays)
    Panicoideae tribePoaceae tribe Andropogoneae genusZea speciesZea mays subspeciesZea mays subsp. mexicana (Schrad.) H.H. Iltis Hugh H. Iltis Common names:
    3 KB (290 words) - 16:05, 30 November 2021
  • Pennisetum glaucum (bulrush millet), Sorghum vulgare (sorghum), and Zea mays (maize). Striga gesnerioides is a serious pest on Vigna unguiculata (cowpea
    5 KB (444 words) - 19:37, 5 November 2020
  • pine forests and savannahs. Zea perennis crosses infrequently with Z. mays subsp. mays. The hybrids, being triploid, are sterile. It has also been cultivated
    3 KB (358 words) - 17:58, 11 May 2021
  • of the contiguous United States. It hybridizes infrequently with Z. mays subsp. mays in its native range. None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"
    3 KB (355 words) - 16:01, 30 November 2021
  • lengths than in its native range. Although it can hybridize with Z. mays subsp. mays, Z. luxurians rarely does so in the wild. None. None. window.prope
    3 KB (341 words) - 17:58, 11 May 2021
  • situations, this may involve a plumose style, for example, Cercocarpus; in epizoochorous (distributed on the outside of animals) cases, the styles may bear stiff
    20 KB (1,710 words) - 22:55, 5 November 2020
  • inflated cells, superficial layer of cells usually aporose, but may be porose. Stem leaves may be less fibrillose or efibrillose and less porose or aporose
    11 KB (898 words) - 21:27, 5 November 2020
  • pollen. Hawthorns may be nurse plants to deciduous trees and play an important role in succession. Gymnosporangium R. Hedwig rusts may be serious pests
    21 KB (2,479 words) - 15:24, 9 December 2021
  • addition, the cypselae may be glabrous or may bear myxogenic (producing mucilage when wetted) or non-myxogenic “twin-hairs.” The twin-hairs may be relatively long
    21 KB (1,721 words) - 19:53, 5 November 2020
  • hybridization may go unrecognized. Important taxonomic characters that are quantitative might result in recognizably intermediate hybrids but … hybrids may be imperfectly
    32 KB (4,205 words) - 22:31, 5 November 2020
  • spikelets may be evenly distributed, or the base of the rame axis may be naked. Individual plants may bear few to many rames, and the rames themselves may be
    26 KB (2,165 words) - 17:57, 11 May 2021
  • portion of the upper (adaxial) face of the lip is the disc: it may be a thickened callus and may bear hairs, papillae, or other ornamentation. In orchids the
    37 KB (2,535 words) - 21:11, 5 November 2020
  • forests, 20 or more species of Carex may be found within a few hectares. All Carex are perennial, but a few species may fruit in their first year and not
    82 KB (3,643 words) - 20:20, 17 July 2023
  • pits” or “sessile” may be added for clarification). Inflorescences of composites are called heads (or capitula, sing. capitulum). Heads may be borne singly
    270 KB (5,940 words) - 19:46, 31 January 2022
  • trees. A few tropical genera are also epipetric, and a number of xeric taxa may occur exclusively (or nearly so) in rock fissures. Hybridization has been
    32 KB (1,968 words) - 19:34, 6 November 2020
  • their uniformity, seedlings and juvenile specimens may not be determinable to genus. Foliage of cultivars may deviate greatly from forms found in wild plants
    12 KB (1,137 words) - 19:26, 28 December 2023
  • mastered for later use in the field. Although these microscopic characters may seem intimidating, the alternative characters of leaf shape and dentition
    11 KB (1,303 words) - 21:52, 5 November 2020
  • membranous, hairy scales, each appressed to and shed with an associated cypsela may be interpreted as paleae). Ray florets 0 (corollas of peripheral florets sometimes
    12 KB (619 words) - 20:15, 5 November 2020
  • distally, sometimes of different length than the inner; stamens 3–8 (some may be reduced to staminodes); filaments distinct, free or adnate to perianth
    6 KB (649 words) - 22:08, 5 November 2020
  • glands that may or may not have a waxy or resinous exudate and/or stalked glands that are clear, and colorless or colored. These stipitate glands may retain
    23 KB (1,561 words) - 22:47, 5 November 2020
  • showy; tepals 6, distinct or less often connate proximally forming tube that may also bear a corona, usually petaloid and ± equal in 2 whorls of 3, or those
    39 KB (3,176 words) - 21:13, 5 November 2020
  • prostrate, nodes swollen; indument of simple hairs, capitate glands that may secrete water or calcium salts, or multicelled glandlike structures. Leaves
    5 KB (493 words) - 22:08, 5 November 2020
  • Sporadically, individual plants may have some teeth resin-tipped and some teeth apiculate; such specimens may be hybrids or may indicate that the developmental
    18 KB (1,335 words) - 20:07, 5 November 2020
  • et al. 2003, 2004), but no obvious morphological synapomorphy. The clade may be defined by a cytogenetic change from the base chromosome number of x =
    3 KB (390 words) - 10:32, 9 May 2022
  • of the diclesium may bear sticky stipitate glands that are involved in dispersal by animals. The surfaces of diclesia in other genera may be more or less
    14 KB (1,274 words) - 21:57, 5 November 2020
  • petioles present. Leaf blades paired, equal in size (except in Pilea, which may have unequally paired leaves), dotted with linear or rounded marks formed
    7 KB (600 words) - 21:53, 14 January 2021
  • filament are distinct, the cotyledons usually form most of the embryo and may be completely connate, and specialization has resulted in dioecism. In the
    6 KB (558 words) - 22:19, 5 November 2020
  • studies. Because of the weedy life strategies of some Amaranthus species, they may occasionally occur as naturalized weeds or waifs very far from their original
    26 KB (1,309 words) - 22:01, 5 November 2020
  • efibrillose, non-ornamented, inflated, thin-walled cells, mostly aporose, but may be porose in some species. Stem leaves similar in size to branch leaves; varying
    14 KB (476 words) - 21:28, 5 November 2020
  • cuticle at least adaxially. Floating leaves may be similar in shape to that of the submersed, or they may differ considerably. Submersed leaves have no
    18 KB (1,124 words) - 20:31, 5 November 2020
  • (Figs. 2A, B, I). Some of the patterns described may co-occur within a leaf. For instance, some veins may be associated with pillars, others with girders;
    45 KB (2,833 words) - 16:24, 11 May 2021
  • are known for their phenotypic plasticity (R. R. Haynes 1974). Plasticity may result from the varied environmental conditions in which the populations grow
    7 KB (794 words) - 20:32, 5 November 2020
  • back as the middle Miocene. Many pulses of diversification and decimation may have taken place in the genus since then; evidence suggests that there has
    37 KB (1,900 words) - 20:25, 9 February 2021
  • sizes of leaves may be produced throughout the growing season, and these are noted in the species descriptions. The pitchers of Sarracenia may be produced
    13 KB (1,221 words) - 22:45, 5 November 2020
  • stems that are not clumped. Sometimes, plants may be colonial but individuals may have clumped stems, or they may be cespitose with occasional stems farther
    57 KB (1,333 words) - 19:35, 6 November 2020
  • resurgence in palm research, however, realignments in the classification may be expected, and indeed additional data already require some changes in the
    12 KB (1,128 words) - 20:30, 5 November 2020
  • or taprooted, caudices woody, rhizomes absent. Stems wandlike (new stems may sprout from caudices). Leaves deciduous (persistent in A. aleutica and A.
    4 KB (166 words) - 19:57, 5 November 2020
  • 3000 m. These local micro-sites may be less fire prone than the immediately surrounding communities. Fire ecology may be important in the evolution of
    9 KB (928 words) - 22:29, 14 January 2021
  • infrageneric classification of Selaginella is controversial, and more than one genus may be recognized (see R. E. G. Pichi-Sermolli 1971 for information on generic
    6 KB (620 words) - 20:24, 5 November 2020
  • embedded in a spadix, and may or may not each be subtended by a bract or retinaculum. The spadix is subtended by a spathe, and it may or may not be retained within
    4 KB (333 words) - 20:30, 5 November 2020
  • in many ways a “problematic group,” some effort beyond what may be considered “normal” may be needed for accurate identification. This is because of the
    13 KB (1,003 words) - 22:08, 5 November 2020
  • useful for illuminating relationships among North American Polygalaceae. There may still be diagnostic value, and even phylogenetic information, in the cytological
    11 KB (1,157 words) - 22:52, 2 December 2022
  • woody, rhizomes absent. Stems not wandlike (relatively numerous; new stems may sprout from caudices). Leaves (pungently aromatic) deciduous or persistent
    9 KB (668 words) - 19:57, 5 November 2020
  • with mixed catkins or hermaphroditic flowers may be anomalous in other ways as well, and such individuals may not be readily identifiable. At the time of
    29 KB (2,619 words) - 22:31, 5 November 2020
  • often with basal rosettes, fleshy decussate turions, soboles, stolons, which may be tipped with turions, or rarely buds (gemmae) in leaf axils; with woody
    26 KB (1,416 words) - 16:40, 2 December 2022
  • over the abaxial surface. Gametophyte gemmae may be much longer than found in the flora, may be platelike, or may be absent. Vegetative proliferation of gametophytes
    3 KB (349 words) - 20:24, 5 November 2020
  • same time, the parent bulb remains intact and produces a renewal bulb, or may divide to produce two or more large increase bulbs. As a result, specimens
    42 KB (1,814 words) - 21:14, 5 November 2020
  • many as fourteen species of coryphanthas may occur sympatrically, with no natural hybrids dectected. Flowers may be few and ephemeral; however, identifications
    19 KB (1,410 words) - 21:58, 5 November 2020
  • characters for many species. As noted elsewhere, soboles from ± woody caudices may be the most generalized type of structure, from which have evolved several
    8 KB (1,136 words) - 10:31, 9 May 2022
  • secondary pani¬cles; secondary panicles terminating the branches, produced from (May)June to fall, usually partially or totally cleistogamous. Spikelets 0.8-5
    20 KB (884 words) - 14:13, 23 September 2022
  • only. Pappus scales may be equal, subequal, or unequal; unequal scales may intergrade (here said to be in gradually unequal series) or may form two, more or
    7 KB (674 words) - 20:07, 5 November 2020
  • clarification. The present treatment largely follows the works of Hall and Mayes. Mayes, R. A. 1976. A Cytotaxonomic and Chemosystematic Study of the Genus Pyrrocoma
    9 KB (600 words) - 20:06, 5 November 2020
  • typological. Nevertheless, they are recognizable entities even if some of them may prove eventually unworthy of specific rank. Where specific problems have been
    14 KB (616 words) - 20:29, 5 November 2020
  • nearly so > 3 2 Phyllaries ± connate 1/3–7/8+ their lengths (margins of outer may be free to bases) > 6 3 Calyculi of (0–)1–9, deltate, lanceolate, or linear
    7 KB (477 words) - 20:13, 5 November 2020
  • inflorescences develop from each perennial root system. Because the root systems may branch, it is generally not possible to determine whether any two inflorescences
    7 KB (777 words) - 22:41, 5 November 2020
  • purplish black, 6–8 mm diam. 2n = 2x, 3x. Phenology: Flowering Mar–May; fruiting May–Jun. Habitat: Pine savannas, sandhills, roadsides, dry openings in
    4 KB (406 words) - 22:54, 5 November 2020
  • and also, (in some) glandular. The operculum may consist of little more than the base of the style and may be well apical of the “line” that is indicative
    17 KB (1,639 words) - 22:44, 5 November 2020
  • Louisiana, some individuals of some species in Thalictrum section Leucocoma may lack their normal vestiture. In the absence of glands or pubescence, the differences
    14 KB (849 words) - 21:49, 5 November 2020
  • taxonomy of Townsendia may differ from those encountered in genera that do not include apomictic plants. Hybrids between sexual plants may be perpetuated as
    12 KB (645 words) - 19:38, 6 November 2020
  • flora). Most Ranunculus species are poisonous to stock; when abundant, they may be troublesome to ranchers. A few species with acrid juice were formerly used
    12 KB (580 words) - 21:49, 5 November 2020
  • in correctly identifying individual specimens is compounded by traits that may vary from region to region, the perpetuation of misleading or inaccurate traits
    10 KB (506 words) - 19:52, 5 November 2020
  • those races are separated morphologically and restricted geographically. They may be arranged into at least three aggregates (groups) that approximate the subsections
    4 KB (500 words) - 22:07, 5 November 2020
  • Outside the flora area, Maianthemum may be epiphytic, with foliage stems pendent or erect; two species are dioecious; tepals may be fused, the perianth campanulate;
    8 KB (750 words) - 21:14, 5 November 2020
  • species from five genera of generalist bees; the plants may be facultatively autogamous. Fruit dispersal may be by birds or small mammals. The flowers appear
    4 KB (474 words) - 22:23, 5 November 2020
  • at least in some parts of the world, but even the most obnoxious grasses may be well-regarded over a portion of their range. For instance, Bromus tectorum
    28 KB (1,872 words) - 16:21, 11 May 2021
  • about the term for the whorl of organs between sepals and stamens; these may be conspicuous and petaloid, or reduced to stalked nectaries, or intermediate
    10 KB (507 words) - 21:48, 5 November 2020
  • (sometimes called microscales) that resemble uniseriate hairs. These scales may be only one or two cells wide. Every intergradation exists between these filiform
    12 KB (567 words) - 20:24, 5 November 2020
  • Zantedeschia (calla-lily). Plants of some cultivated species of Araceae escape and may persist or naturalize, especially in warmer climates. One of these species
    10 KB (1,075 words) - 20:31, 5 November 2020
  • is sometimes cultivated and may escape. Outside North America, plants of Abutilon may be arborescent, and their corollas may be of other colors although
    9 KB (591 words) - 22:20, 5 November 2020
  • antrorsely barbellulate bristles 0.5–3.5 mm (in P. vitreomontana all but 2–3 may be reduced to vestigial nubs). x = 17. sw United States. Species 6 (6 in the
    4 KB (236 words) - 20:14, 5 November 2020
  • filaments 20–40 mm. Capsules 7–10 mm wide. 2n = 16 (Europe). Phenology: Flowering May–Oct. Habitat: Disturbed ground. Elevation: 0–2000 m. Generated Map Legacy
    3 KB (221 words) - 19:37, 5 November 2020
  • Seeds 1–1.5 mm, reticulate-alveolate. 2n = 20 (India). Phenology: Flowering May–Oct. Habitat: Roadsides, disturbed ground. Elevation: 0–100 m. Generated Map
    3 KB (281 words) - 19:37, 5 November 2020
  • acuminate Silene plankii 20 Petals deeply 4-6-lobed, small lateral teeth may be present Silene laciniata 20 Petals deeply 2-lobed, lobes often with lateral
    29 KB (1,186 words) - 23:23, 14 November 2022
  • the broad sense of H. ’t Hart 1995) may be biphyletic; if these annuals are separated from Crassula, then, it may be best to recognize two genera, Tillaea
    9 KB (817 words) - 22:42, 5 November 2020
  • Pseudodrupes yellowish green, spheric, 1–2 × 0.8–1.8 cm. Phenology: Flowering May–Jun. Habitat: Moist and dry woodlands and stream banks. Elevation: 20–500
    3 KB (252 words) - 19:13, 5 November 2020
  • North America by showing that some fairly distinct, sexual diploid species may include apomictic polyploid plants or populations that do not differ greatly
    13 KB (628 words) - 20:08, 5 November 2020
  • Lewis 1953). Floral forms differ among the sections of Mentzelia, which may be indicative of reproductive shifts that were important in the differentiation
    10 KB (926 words) - 19:13, 5 November 2020
  • maroon-purple, 6–10 mm diam. 2n = 2x, 4x. Phenology: Flowering Feb–May; fruiting May–Jul. Habitat: Dry to moist woods, mesic mixed hardwoods and pine-hardwoods
    6 KB (764 words) - 22:54, 5 November 2020
  • Silene in the broad sense and one from Arenaria (Eremogone); further studies may provide evidence that additional groups within the larger genera are monophyletic
    22 KB (1,113 words) - 22:09, 5 November 2020
  • in September, pistillate meiosis in May, with fruits maturing five months after pollination; seeds germinate in May to June. In 1858, Thoreau wrote about
    4 KB (451 words) - 19:18, 5 November 2020
  • incomplete specimens may be difficult to identify, especially if the inflorescences are immature or over-mature. Some species in the section may rarely produce
    13 KB (657 words) - 20:37, 5 November 2020
  • white when young; nectary scale attached on 3 sides, forming pocket that may or may not cover nectary, glabrous, free margin entire; style present. Fruits
    3 KB (227 words) - 21:47, 5 November 2020
  • (glandular). Seeds globose to ovoid, glabrous. 2n = 12. Phenology: Flowering May–Jul(–Oct). Habitat: Dry, rocky or gravelly hills, plains, deserts, grasslands
    3 KB (268 words) - 22:23, 5 November 2020
  • used for these plants. Species of ser. Tenuissimae in which the spikelets may be proliferous and which are easily confused with each other are E. baldwinii
    13 KB (1,284 words) - 20:44, 5 November 2020
  • Capsule 2 mm or more. Spores typically 22–30 µm, distal surface sculpture may be present; proximal laesura usually more than 0.5 spore radius. Worldwide
    7 KB (344 words) - 21:27, 5 November 2020
  • mostly 120–200. Seeds mostly 120–200. 2n = 60 + 0–1B. Phenology: Flowering Jan–May. Habitat: Open desert scrub Elevation: 100–1000 m Generated Map Legacy Map
    2 KB (189 words) - 22:20, 5 November 2020
  • traits described as characteristic of a species may occur on only some leaves of a rosette; ligule color may change in dried material; cypsela size, though
    24 KB (2,224 words) - 19:51, 5 November 2020
  • feature may link series Arenicolae to species such as S. hansenii and S. wrightii, which I place in the series Eremophilae R. M. Tryon and which may represent
    15 KB (584 words) - 20:21, 5 November 2020
  • environments, especially with respect to moisture, may be unusual; for instance, plants of deeply shaded or wet sites may be markedly attenuated. In the key, the
    13 KB (653 words) - 21:38, 5 November 2020
  • (7–)8–10 × 5–7 mm, dull, wing 0.1–1 mm wide. 2n = 30. Phenology: Flowering (May-)Jun–Jul(-Oct). Habitat: Shaded, moist ravines and gorges Elevation: (100-)200-1100
    4 KB (374 words) - 22:45, 5 November 2020
  • Pomes maroon-purple, 7–10 mm diam. 2n = 2x, 4x. Phenology: Flowering Mar–May; fruiting Jun–Jul. Habitat: Damp soil of swamps, wet streamheads, bogs, moist
    5 KB (558 words) - 22:54, 5 November 2020
  • otherwise noted, the key and descriptions refer to fresh material. Some features may be significantly altered by pressing; they can, however, usually be determined
    5 KB (569 words) - 21:49, 5 November 2020
  • hairs at base of styles). Pomes 8–9 mm diam. 2n = 4x. Phenology: Flowering May–Jun; fruiting Jul–Sep. Habitat: Mountain slopes Elevation: 2000–3400 m Generated
    3 KB (317 words) - 22:54, 5 November 2020
  • irregularly when mature, releasing mesocarp/seed. 2n = 38. Phenology: Flowering May–Jul; fruiting Sep–Oct. Habitat: Rich forests. Elevation: 200–1400 m. Generated
    3 KB (279 words) - 19:18, 5 November 2020
  • usually present. Stems few, very short, less than 0.05 cm; flagelliform shoots may occur at the base of the stem, 0.2–0.5 cm, with 3-ranked, tightly appressed
    3 KB (236 words) - 21:24, 5 November 2020

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