ribbed (ribs ribbonlike or pectinate). x = 8. North America, Mexico, South America, Eurasia, mostly north-temperate, arctic, and alpine regions. Species
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in 1(–3) series. x = 8, 7, 5, 13, 18, 21. North America, Mexico, West Indies, Central America, South America, e Eurasia, introduced in Europe. Species ca
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of stem not bulbous; w North America. Ranunculus uncinatus 3 Receptacle hispid; base of stem bulbous, cormlike; e North America. Ranunculus recurvatus
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in Northern Hemisphere, especially North America, Europe, and central and northern Asia, sporadic in South America and northern Africa. Species ca. 220
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shorter than corollas except in C. foliosum and C. arvense). x = 17. North America, Eurasia, n Africa. Species ca. 200 (62 in the flora). Only three genera
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each with glandular hairs around apices in R. heliopsidis). x = 19. e North America. Species 9 (9 in the flora). None. Rudbeckia fulgida, Rudbeckia graminifolia
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Treatment on page 356. Mentioned on page 332, 335. e North America Generated Map Legacy Map e North America, Asia (China, Japan). Subspecies 2 (1 in the flora)
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dispersed ballistically and by ants. x = 5, 6, 7, 8. North America, (including Mexico), Central America (Guatemala), Asia, adventive in Europe and New Zealand
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midnerve pronounced, never 3-nerved, not anise scented when crushed e North America. Species 5 (5 in the flora). None. Solidago delicatula, Solidago fistulosa
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x =12. Widespread in north temperate and north tropical (mountainous) regions, North America, Mexico, West Indies, Central America, Eurasia (including 1
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Pappus bristles usually in 2 series (inner usually moderately clavate). e North America. Species 9 (9 in the flora). None. Solidago (sect. Solidago) ser. Argutae
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cylindric, smooth, slightly ridged, verrucose, or densely scaly. x = 8. North America and Eurasia. Species 12 (6 in the flora). Cimicifuga may be divided into
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remnants of sepals; mesocarp juicy, acidic. c, e North America, Mexico, Central America (Costa Rica, Panama), e Asia. Species ca. 13 (5 in the flora). Plant
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glabrous or hairy; blade monomorphic (dimorphic in E. curtisii, E. exserta, E. ipecacuanhae, and E. mercurialina), base symmetric, margins entire [rarely
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(F. H. Utech et al. 1995; C. E. Wood Jr. 1970). Jones, Q. 1951. A cytotaxonomic study of the genus Disporum in North America. Contr. Gray Herb. 173: 1–39
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vom naturwissenschaftlichen Vereine zu Bremen 4: 406. 1875. Ralph E. Brooks*, Steven E. Clemants* Synonyms: Juncus sect. Poiophylli (Buchenau) Vierhapper
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The segregates of Senecio, s.l., and Cacalia, s.l., in the flora of North America North of Mexico. Sida 18: 661–672. Jeffrey, C. 1980. Generic and sectional
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green-tipped, with strawberry or pineapple scent. x = 11. Temperate North America. Species 3 (2 in the flora). None. Calycanthus floridus, Calycanthus
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integument expanded and sticky when wet. c, e North America, Mexico, West Indies, Central America, South America, Africa, se Asia, India, n Australia, pantropical
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smooth) bristles. x = 14. Temperate and arctic/alpine regions, North America, Mexico, South America, Eurasia. Species 45 (34 in the flora). Some species of Antennaria
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