Selaginella uncinata, Selaginella willdenowii (Palisot de Beauvois) Baker J. Bot. 21: 3. 1883. Iván A. Valdespino Basionym: Undefined subg. Stachygynandrum Palisot
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side; n United States, adjacent Canada. Crataegus ×sicca 21 Inflorescence branches pubescent > 22 21 Inflorescence branches glabrous > 27 22 Bracteoles linear-filiform
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8-1.5 mm wide > 21 21 Rachises slightly flexuous; ovules 18-40 per ovary; plants of waste grounds, disturbed sites. Cardamine flexuosa 21 Rachises straight;
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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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Illustrator: John Myers Copyright: Flora of North America Association Roots 7–21, to 3 cm, 1 or 2 perforating scale. Fronds obovate to circular, flat or rarely
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hirsutiflora 21 Pedicels 0.8–1 cm, glandular-puberulent; sepals 4–6 mm; petals 9–12 mm; hilum much shorter than seed Tradescantia pinetorum 21 Pedicels (0
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container, alluding to quadrangular involucres Treatment appears in FNA Volume 21. Treatment on page 178. Mentioned on page 176. Perennials, mostly 30–120 cm
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plants not succulent (sect. Panicum). > 18 20 Spikelets 4-6.5 mm long. > 21 21 Upper glumes and lower lemmas only slightly exceeding the upper florets;
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8 mm. Hypericum galioides 21 Sepals: basal veins 3–7; ovaries (3–)4–5-merous; capsules notably lobed. Hypericum lobocarpum 21 Sepals: basal veins 1–3; ovaries
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Phyllaries 12–21, margins of outer distinct 1/5 to nearly all their lengths, abaxial faces puberulent or glabrous. Ray-florets (8–) 12–21; corollas yellow
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> 21 21 Calyx lobes triangular-lanceolate; branches spreading-ascending; seeds yellowish tan; pedicels spreading-ascending. Agalinis gattingeri 21 Calyx
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or exceeding perigynia. Carex chalciolepis 21 Perigynia broadly elliptic, papillose. Carex atratiformis 21 Perigynia obovate, smooth. > 22 22 Pistillate
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Trans. Amer. Philos. Soc., n. s. 7: 376. 1841 Treatment appears in FNA Volume 21. Treatment on page 403. Mentioned on page 401, 410. Biennials, perennials
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practitioner and botany professor of Valencia, Spain Treatment appears in FNA Volume 21. Treatment on page 483. Mentioned on page 459, 485. Annuals, perennials, subshrubs
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Latin centron, prickle, and generic name Madia Treatment appears in FNA Volume 21. Treatment on page 276. Mentioned on page 254, 255, 256, 277, 280, 291. Annuals
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Barkley†, Luc Brouillet, John L. Strother Treatment appears in FNA Volume 21. Treatment on page 251. Mentioned on page 5, 220, 253. Subshrubs or shrubs
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Undefined sect. Pappothrix (A. Gray) Rydberg Treatment appears in FNA Volume 21. Treatment on page 318. Mentioned on page 317, 320, 325. Perennials or subshrubs
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acute, ciliate only on margins Calochortus westonii 21 Basal leaves usually persistent at flowering. > 22 21 Basal leaves usually withering by flowering. >
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florets (4–)5(–6); Utah Ericameria nauseosa 21 Ray florets usually 0 (sometimes 1–2 in E. brachylepis) > 22 21 Ray florets usually 1–10 (sometimes 0 in E
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or 2 plump lobes. 2n = 38 (29), 57 (1), 76 (16), 95 (1), 114 (4), unknown (21). North America, Eurasia Species ca. 204 (63 species in the flora). Nineteen
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