eighteenth-century French patron of botanists Treatment appears in FNA Volume 21. Treatment on page 421. Mentioned on page 3, 5, 415, 416. Annuals, perennials
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Dudleya cymosa subsp. pumila (Lemaire) Britton & Rose New N. Amer. Crassul., 21. 1903 ,. Reid V. Moran Common names: Canyon liveforever or dudleya rock-lettuce
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rarely white. > 21 20 Perianths entirely yellow. Iris pseudacorus 20 Perianths white with large yellow patch at base of sepals. Iris orientalis 21 Stigmas unlobed;
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with obscure midvein > 21 20 Petals: claws purplish; stamens in 3 unequal pairs; fruit valves each with prominent midvein > 22 21 Plants with woody caudex
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8:1-26 Farwell, O.A. 1919. Bromelica (Thurber): A new genus of grasses. Rhodora 21:76-78 Hempel, W. 1970. Taxonomische und chorologische Untersuchungen an Arten
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Amer. Acad. Arts 6: 548. 1865,9: 189. 1874 Treatment appears in FNA Volume 21. Treatment on page 296. Mentioned on page 255, 297, 304. Annuals, 1–20 cm
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perpetual secretary, Académie des Sciences, Paris Treatment appears in FNA Volume 21. Treatment on page 117. Mentioned on page 65, 66, 119. Subshrubs or shrubs
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Treatment appears in FNA Volume 9. Treatment on page 345. Mentioned on page 21. Trees, sometimes shrublike; unarmed. Leaves opposite, simple or pinnately
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conic (rostrate in Rhynchostegium) > 23 21 Branch leaf laminal cells strongly prorate; stem leaves ovate. Bryhnia 21 Branch leaf laminal cells not or occasionally
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Virginia, and e West Virginia > 23 21 Achenes glabrous; perianths pale yellow; sw Alberta and nw Montana Eriogonum androsaceum 21 Achenes sparsely pubescent on
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styles each 2 times 2-fid. Croton lindheimeri 10 Shrubs or perennial herbs. > 21 21 Staminate petals 0; columella 3-winged. > 22 22 Plants monoecious or sometimes
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5-1 mm; involucral bracts 3-7(-9). Anemone cylindrica 21 Rhizomes mostly vertical. Anemone piperi 21 Rhizomes mostly horizontal. > 22 22 Lateral leaflets
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Alpine aster Illustrated Treatment appears in FNA Volume 20. Treatment on page 21. Illustrator: Yevonn Wilson-Ramsey Copyright: Flora of North America Association
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Botanische Jahrbucher fur Systematik, Pflanzengeschichte und Pflanzengeographie 21: 304. 1895. Elias Landolt WeedyIllustrated Basionym: Wolffia gladiata Hegelmaier
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Balsamorhiza sect. Artorhiza (Nuttall) Jepson Treatment appears in FNA Volume 21. Treatment on page 94. Mentioned on page 93, 95, 98, 99. Taproots relatively
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Welsh Basionym: Saccariae Standley in N. L. Britton et al., N. Amer. Fl. 21: 45. 1916 Treatment appears in FNA Volume 4. Mentioned on page 347. Leaves
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pungens (Hooker & Arnott) Torrey & A. Gray Treatment appears in FNA Volume 21. Treatment on page 277. Mentioned on page 276. Illustrator: Marjorie C. Leggitt
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genusOncidium Show Lower Taxa Oncidium ensatum Swartz Kongl. Vetensk. Acad. Nya Handl. 21: 239. 1800. Mark W. ChaseChase, Mark W. Etymology: Greek oncos, swelling,
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(5–) 10 (–19) mm. Leaf-blades ovate-oblong, obovate, or elliptic, (4.2–) 10 (–21) × (2–) 4 (–8) cm, base acute to rounded, apex acute to acuminate, surfaces
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Botanische Jahrbucher fur Systematik, Pflanzengeschichte und Pflanzengeographie 21: 303. 1895. Elias Landolt WeedyIllustrated Basionym: Wolffia lingulata Hegelmaier
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