Involucres 1–8 or more per cluster, narrowly turbinate to campanulate; teeth (3–) 5–6 (–10), erect or occasionally spreading, apex acute to obtuse or rounded. Flowers
80 KB (1,352 words) - 10:29, 30 July 2020
with 1 floret each aggregated into second-order heads in Echinops). Calyculi 0 (involucres sometimes closely subtended by leaflike peduncle bracts). Phyllaries
15 KB (836 words) - 20:05, 29 July 2020
glabrous or spreading-hairy (C. exserta), pollen-sacs 2, unequal; staminode 0; ovary 2-locular, placentation axile; stigma capitate, entire, or 2-lobed.
79 KB (2,746 words) - 18:50, 29 July 2020
49, 51, 57, 60, 61, 86, 104, 107, 120, 125, 126, 133. Shrubs or trees, 0.05–20 m, not clonal or, sometimes, clonal by layering or stem fragmentation. Stems
52 KB (888 words) - 11:54, 30 July 2020
hairy, hairs simple; taprooted or rhizomatous, sometimes stoloniferous. Stems 0–20, prostrate to erect. Leaves cauline or basal, (attached directly to rhizome
13 KB (963 words) - 11:16, 30 July 2020
aggregated into second-order heads, rarely borne singly. Calyculi 0. Phyllaries sometimes 0 (apparent phyllaries interpreted as outer receptacular paleae)
25 KB (1,822 words) - 20:30, 29 July 2020
spiciform arrays, sometimes borne singly or in subcapitate clusters. Calyculi 0. Phyllaries persistent or falling, usually in 3–5+ series, distinct, unequal
23 KB (1,089 words) - 20:43, 29 July 2020
heads in Lagascea). Calyculi 0. Involucres cylindric to hemispheric or rotate. Phyllaries persistent, 4–45 (–100+) in 1–6+ series (usually distinct, ±
10 KB (633 words) - 23:14, 29 July 2020
paniculiform, racemiform, or spiciform arrays, sometimes borne singly. Calyculi 0 or of 1–15+ bractlets in 1 (–2+) series. Phyllaries persistent or falling,
23 KB (1,021 words) - 21:10, 29 July 2020
specific to 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
28 KB (900 words) - 07:47, 30 July 2020
the choice of either; no new combinations have been made. Beilstein, M. A. and M. D. Windham. 2003. A phylogenetic analysis of western North American Draba
85 KB (2,094 words) - 12:08, 30 July 2020
257, 300, 301, 306. Annuals, perennials, subshrubs, or shrubs, (0.5–) 1–250 cm. Leaves mostly basal, or basal and cauline, or mostly cauline; opposite
15 KB (799 words) - 23:36, 29 July 2020
cymiform, corymbiform, paniculiform, racemiform, or spiciform arrays. Calyculi 0. Involucres cylindric, or campanulate to hemispheric or broader, or rotate
21 KB (800 words) - 22:59, 29 July 2020
Majesty's Stationery Office, London, England. 389 pp. Columbus, J.T., M.S. Kinney, R. Pant and M.E. Siqueiros Delgado. 1998. Cladistic parsimonv analysis of internal
34 KB (1,217 words) - 04:33, 30 July 2020
distinct, rarely a minute rim (Hippuris) or 0 (Callitriche), calyx radially or bilaterally symmetric; petals 0 (Callitriche, Hippuris) or (3 or) 4 or 5,
26 KB (1,000 words) - 19:24, 29 July 2020
scales (0.1–0.4 mm), sometimes connate, plus 5–40 (–50), stramineous, barbellate bristles, sometimes pappi only on ray or only on disc cypselae, or 0. x =
97 KB (2,063 words) - 21:58, 29 July 2020
often resinous. Receptacles slightly convex, pitted, epaleate. Ray-florets 0, or 1–18, pistillate, fertile; corollas usually yellow (white in E. gilmanii
23 KB (1,156 words) - 22:11, 29 July 2020
the glumes and beneath the florets, sometimes below the glumes. Spikelets 0.7-50 mm, laterally compressed, sometimes weakly so, sometimes viviparous, usually
45 KB (1,179 words) - 03:07, 30 July 2020
deciduous; collars inconspicuous, usually glabrous; auricles absent; ligules 0.1-2 (8) mm, membranous, sometimes longest at the margins, usually truncate
52 KB (3,291 words) - 03:08, 30 July 2020
usually borne singly, sometimes in glomerules or corymbiform arrays. Calyculi 0. Involucres mostly campanulate, cylindric, hemispheric, obconic, or ± rotate
13 KB (688 words) - 22:34, 29 July 2020