5-6 mm, adaxial pair 15- 26 mm); stamens in 3 unequal pairs; styles 0.2-0.5 mm. Streptanthus cutleri 3 Stems pilose proximally; petals equal (4-8 mm); stamens
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appears in FNA Volume 5. Treatment on page 16. Mentioned on page 6, 9, 17, 19, 21. Herbs, annual or strongly perennial with branched, woody caudex. Taproots
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Fruits capsules, erect, nearly sessile, ellipsoid to sausage-shaped. x = 21. Temperate regions, North America (including Mexico) Species 10 (10 in the
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surface usually with 2 marginal veins more prominent than midvein; leaves 0.7–21 mm wide, glabrous or, rarely, pubescent. Inflorescences racemose, with 2–10
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Treatment appears in FNA Volume 26. Treatment on page 307. Mentioned on page 20, 21, 58, 204, 303, 308. Herbs, perennial, from tunicate bulbs. Leaves basal; blade
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stellate-hairy; staminate sepals 3–4 mm, petals 3–4 mm; pistillate sepals 4 mm, petals 1 mm; seeds 3–4 × 2.5–3 mm. Croton humilis 29 Leaf blade abaxial
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Flowers: perianth and androecium epigynous, 4–15 mm diam.; hypanthium funnelform, cupulate, or campanulate, 1.5–5 mm, glabrous or pilose to tomentose; sepals 5
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discussed under 1. E. palustris. (2) The E. tenuis complex (species 16–21) is discussed under 21. E. tenuis. (3) The four species (species 57–60) of 8c. Eleocharis
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Barkley†, Luc Brouillet, John L. Strother Treatment appears in FNA Volume 21. Treatment on page 32. Mentioned on page 6, 7, 33, 38, 41. Annuals, perennials
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5–1 mm; leaf blades mostly oblong or elliptic, petioles 0.3–6 cm; capsules 10–14 mm, pedicels 7–60(–90) mm; seeds 1–1.5 × 0.9–1.3 mm; sepals 3–12 mm. Ludwigia
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Herbs, terrestrial to semiepiphytic, glabrous. Roots few, fibrous, 0.3–1 mm wide. Stems swollen at base into pseudobulb, ± globose, glabrous. Leaves 1–3
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Spores 9–25 µm. Nearly worldwide, high Arctic to tropics Species ca. 80 (21 in the flora). Many species of Brachythecium exhibit a broad range of variation
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narrowly lanceolate to ovatelanceolate [rarely linear-lanceolate], 0.6–3.5 mm; base decurrent or not; margins plane (strongly revolute in P. cardotii and
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abaxially, 1.8-2 mm; flowers 2-2.5 mm; s California Eriogonum gracillimum 8 Involucres densely tomentose abaxially, 2.7-3 mm; flowers 1.5-1.7 mm; sc California
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corollas 6–12 mm. Cypselae tan, turbinate to cylindric or oblanceoloid, 3–8 mm, glabrous or hairy (often ± pilose or sericeous); pappi whitish, 3–13 mm. 2n = 18
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reticulate-veined; calyces 4–12 mm > 5 5 Stems glabrous or sparsely stellate-hairy; plants annual or perennial; bracts ovate to wide-elliptic, 2–5 mm wide; mericarps glabrous
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(or 4) -flowered, (6–) 13–25 (–38) mm. Pedicels: (0 or) 1 (–3) subtended by a leaf, proximalmost (4–) 11–21 (–35) mm. Flowers: sepals ascending to recurved
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symmetric; hypanthium adnate to ovary for proximal 1/4–1/2, free from ovary 0.1–7 mm, abruptly inflated distal to adnation with ovary (H. alba, H. americana, H
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30 30 Inner tepals 3.5-4.5(-5) mm; achenes 2-3 mm Rumex mexicanus 30 Inner tepals (2-)2.5-3.5(-3.8) mm; achenes 1.7-2.2 mm Rumex triangulivalvis 31 Inner
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0.35–0.8 mm; achenes smooth at 30X or finely rugulose at 10–30X; widespread. > 21 21 Floral scales in middle of spikelet not more than 1.8 mm wide, 4–
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