particular species; laminal cells usually elongate to linear, 6–15: 1, occasionally 20: 1 or 1.5–5: 1, smooth or strongly prorate in distal ends, walls thin to
28 KB (900 words) - 07:47, 30 July 2020
post-anthesis, spreading to suberect; petals caducous, usually (3 or) 4 or 5 (–7), sometimes 0, usually yellow, sometimes white, when yellow, then often u
30 KB (1,654 words) - 21:01, 7 June 2022
usually (6–) 7–50 (–60) in 1 series and laminae (3–) 5–18 (–21) × 0.8–2.8 mm, sometimes 14–110+ in 2–5+ series (sect. Conyzopsis) and laminae 4.5–5 × 0.1–0.2
7 KB (663 words) - 21:03, 29 July 2020
on page 23, 24, 29, 49, 51, 61, 64, 66, 67, 71, 75, 78, 83, 86. Shrubs, 0.005–6 m, clonal by layering or rhizomes, rarely root shoots, or not clonal. Stems
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or proximal 1–2 (–3) empty, stramineous (straw-brown) to medium brown or red brown or blackish brown. Flowers bisexual; perianth of (0–)3–6(–10) bristles
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tufted, or matted, sometimes forming hanging clumps, often aromatic, (0.1–) 0.3–6 (–6.5) dm, sparsely to densely hirsute, sericeous, villous, or pilose, sometimes
19 KB (1,253 words) - 14:03, 30 July 2020
the upper florets, then the florets not very plump at maturity. Spikelets 1-8 mm, usually dorsally compressed, some¬times subterete or laterally compressed
26 KB (1,480 words) - 04:05, 30 July 2020
semiterete, or subterete, rarely laminar, 0.1–8 cm, usually ± succulent, base spurred or not, margins entire, (with 1 abaxial apical hydathode); veins not conspicuous
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proximal node, 0.3–2.5 × 0.2–1.8 cm, usually scalelike distally, 1–5 × 0.5–3 mm. Involucres 1 per node, turbinate to campanulate, 1–6 × (1–) 1.5–10 mm, tomentose
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outer 3 remaining small, inner 3 usually enlarging, sometimes 1–3 with central vein transformed into tuberculate callosity (tubercle); stamens 6; filaments
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(less than 1 cm), medium (1–3 cm), long (more than 3 cm); leaves: small (less than 1.5 mm), medium (1.5–3 mm), large (3–4 mm), robust (more than 4 mm). None
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andropolygamous), blooming before or at leaf emergence, 4–40 mm diam.; hypanthium 1.5–8 mm, exterior glabrous or hairy; sepals 5, erect to reflexed, usually
43 KB (1,828 words) - 14:17, 30 July 2020
rhizomal and basal rosulate or not, petiolate, blade margins entire, toothed, or 1–3-pinnatisect, or palmately lobed, sometimes trifoliolate, pinnately, palmately
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fascicularis). Inflorescences 1-50-flowered cymes. Flowers pedicellate; sepals deciduous soon after anthesis, 5 (sometimes 6 in R. occidentalis var. hexasepalus);
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rounded, or straight, abaxial lobes 3, adaxial 2; stamens 4, didynamous; filaments glabrate to lanate; staminode 0; ovary 2-locular, placentation axile;
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perianth and androecium epigynous, 8–25 mm diam.; hypanthium ± obconic, constricted at disc except for opening, 2–6 mm wide; sepals 5, spreading, triangular;
26 KB (2,400 words) - 15:31, 15 December 2020
clawed; nectary fleshy, free from hypanthium; stamens 6 (–8); ovary 1/2-inferior, 3-locular; styles 3 (sometimes 4 in C. jepsonii), connate basally. Fruits
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absent. Flowers in multiflowered heads (rarely only 2– or 3 flowers per head). Capsules 1-locular or 3-locular, beaked. Seeds tailed or not tailed. x = 20.
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margins acutely angled, apex tapering, often abruptly beaked, glabrous; beak 0.3–3 mm, with abaxial suture, bidentate. Stigmas 2. Achenes biconvex, smaller than
15 KB (529 words) - 01:49, 30 July 2020
with 1 floret; rachillas not prolonged beyond the florets; disarticulation above the glumes. Glumes often longer than the florets, thin, usually 1-3-veined
23 KB (1,150 words) - 04:51, 30 July 2020