tribe Cichorieae genusSonchus Show Lower Taxa Sonchus arvensis, Sonchus asper, Sonchus oleraceus, Sonchus palustris, Sonchus tenerrimus Linnaeus Sp. Pl
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Common names: Rough dropseed Sporobole rude Endemic Synonyms: Sporobolus asper Treatment appears in FNA Volume 25. Treatment on page 121. Plants perennial;
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familyAsteraceae tribeAsteraceae tribe Cichorieae genusSonchus speciesSonchus asper (Linnaeus) Hill Herb. Brit. 1: 47. 1769. Philip E. Hyatt Common names: Spiny-leaf
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Peterson, Stephan L. Hatch, Alan S. Weakley Synonyms: Sporobolus asper var. pilosus Sporobolus asper var. drummondii Treatment appears in FNA Volume 25. Treatment
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Stephan L. Hatch, Alan S. Weakley Synonyms: Sporobolus asper var. hookeri Sporobolus undefined var. asper Treatment appears in FNA Volume 25. Treatment on page
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Ralph E. Brooks*, Steven E. Clemants* IllustratedEndemic Basionym: Juncus asper Engelmann Trans. Acad. Sci. St. Louis 2: 478. 1868, Treatment appears in
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Paul M. Peterson, Stephan L. Hatch, Alan S. Weakley Synonyms: Sporobolus asper var. macer Treatment appears in FNA Volume 25. Treatment on page 122. Illustrator:
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Endemic Basionym: Chrysothamnus asper Greene Leafl. Bot. Observ. Crit. 1: 80. 1904 Synonyms: Chrysothamnus parryi subsp. asper (Greene) H. M. Hall & Clements
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Synonyms: Cyperus asper (Liebmann) O’Neill Cyperus compresso triqueter Boeckeler Cyperus ehrenbergianus Boeckeler Cyperus mutisii var. asper (Liebmann) Kükenthal
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varietyErigeron glabellus var. glabellus Guy L. Nesom Endemic Synonyms: Erigeron asper Nuttall Erigeron oblanceolatus Rydberg Treatment appears in FNA Volume 20
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the species. The plant has been treated as “C. asper (Liebmann) O’Neill,” a name based on Mariscus asper Liebmann and a synonym of C. mutisii (A. B. Ayers
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J. Bogler Common names: Rough rattlesnakeroot Endemic Synonyms: Nabalus asper (Michaux) Torrey & A. Gray Treatment appears in FNA Volume 19. Treatment
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Euklisia violacea Greene Streptanthus albidus subsp. peramoenus Streptanthus asper Greene Streptanthus biolettii Greene Streptanthus mildrediae Greene Streptanthus
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Hooker Fl. Bor.-Amer. 2: 19. 1834. Guy L. Nesom Endemic Synonyms: Erigeron asper var. pubescens (Hooker) Breitung Erigeron glabellus subsp. pubescens (Hooker)
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1821. Ihsan A. Al-Shehbaz WeedyIllustratedEndemic Basionym: Cheiranthus asper Nuttall Gen. N. Amer. Pl. 2: 69. 1818 Synonyms: Cheirinia aspera (Nuttall)
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Bot. 87:1-50 Riggins, R. 1977. A biosystematic study of the Sporobolus asper complex (Gramineae). Iowa State J. Res. 51:287-321 Simon, B.K. and S.W.L
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apparently originated in Africa, perhaps as an amphidiploidized hybrid between H. asper Hooker f. and H. surattensis Linnaeus (M. Y. Menzel 1986) and may no longer
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associates, often more locally restricted, include Panicum virgatum, Sporobolus asper, S. heterolepis, and Stipa spartea. These grasses are a mixture of sod-formers
133 KB (20,036 words) - 18:33, 13 February 2019