Robson Sarothra sect. Trigynobrathys Y. Kimura Treatment appears in FNA Volume 6. Treatment on page 88. Mentioned on page 73. Herbs, annual or perennial (stems
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persistent basal rosettes, 0.2–2.5 (–4.5) dm, lengths 1.5–5 times basal leaves. Leaves: basal rarely 2-ranked; cauline 0–2 (–3); primary leaves usually
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Involucres 1.5–2 mm, awns ivory or reddish, 2–5 mm. Flowers: perianth 2–2.5 mm; filaments 2–2.5 mm; anthers 0.3–0.6 mm. Achenes 1.7–2 mm. Generated Map
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Herbs, perennial (dying back in winter to rootstock), not viviparous, 0.3–6 dm, glabrous [pubescent]. Stems a rootstock with apex mostly above ground, erect
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Bulbs seldom clustered, globose, 1–5 cm diam. Leaves usually fewer than 10, 1–6 dm × 4–20 mm. Inflorescences 20–80 cm; sterile bracts absent, bracts subtending
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583, 588, 589, 591, 603, 610, 625, 664. Herbs, perennial, (0.8–) 1–5 (–6) dm; from a branched, woody caudex; with a taproot. Stems few-to-many, erect
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incurved, ± accrescent; pyrenes (3–) 5. North America, Mexico, in Europe Species 6 (6 in the flora). Crataegus mollis and immediate relatives (with 20 stamens
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involute, or terete; bracteoles 2, at base of perianth. Flowers borne singly, not in heads. Capsules 1-locular (placentae 1/2–3/4 distance to central axis)
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erect to spreading, stout to slender, solid, not fistulose, (0.1–) 0.5–4 (–6) dm, tomentose, floccose, or glabrous. Leaves basal and fasciculate in terminal
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keel crested, crest 2-lobed, often fimbriate (lobes subdivided into fingerlike lobes), glabrous (pubescent in P. alba); stamens (6–) 8 in chasmogamous
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rosettes, 0.2–2 (–3) dm, lengths 1–3 (–5) times basal leaves. Leaves: basal not in ranks; cauline 0–2; primary leaves ternate or palmate, (1–) 2–10 (–18)
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persistent basal rosettes, 0.2–1.5 (–2.7) dm, lengths 1/2–3 (–4) times basal leaves. Leaves: basal not in ranks; cauline 0–2; primary leaves palmate to subpalmate
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conspicuously glandular, resinously aromatic. Stems ascending to erect, (0.6–) 1–6 (–9) dm. Basal leaves planar; stipules entire; leaflets 3–8 (–15) per side,
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if present, 5 (10 in G. glaciale); hypanthium saucer-shaped to cupshaped, 2–6 mm; sepals 5 (–10 in G. glaciale), erect to erect-spreading, reflexed or not
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in A. von Humboldt et al. in A. von Humboldt et al., Nov. Gen. Sp. 6(fol.): 183. , 6(qto.): 232. , plate 559. 1824. James Henrickson, Brian D. Vanden Heuvel
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scapelike, 1–2 m, less than 2.5 cm diam. Flowers pendent; perianth hemispheric; tepals distinct, pale greenish white, thin, 2.5–4.8 × 1.1–2.6 cm, apex acute;
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ovate or ovate-deltate, 3–6 (–8) cm, thin to chartaceous, base cuneate to rounded or truncate to subcordate, lobes 0 or 3–6 per side, sinuses shallow to
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to blackish or chestnut-brown, medium to stout, (2–) 3–6.5 cm. Leaves: petiole usually short, length 0–18 (–31) % blade, usually glabrous, sometimes villous
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entire; inflorescence leaf-blades 1.5–6.5 cm. Scape 2.5–6 dm. Inflorescences racemose, sometimes branched, 6.5–9 dm × 0.7–2.8 (–20) cm; bracts caducous, 1.5–3
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paniculate or racemose, 5–250-flowered. Flowers 3-merous (6 tepals, 6 stamens) or, by reduction, 2-merous (4 tepals, 4 stamens); perianth spreading; tepals
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