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  • tribe Cichorieae genusSonchus Show Lower Taxa Sonchus arvensis, Sonchus asper, Sonchus oleraceus, Sonchus palustris, Sonchus tenerrimus Linnaeus Sp. Pl
    5 KB (356 words) - 19:51, 5 November 2020
  • familyAsteraceae tribeAsteraceae tribe Cichorieae genusSonchus speciesSonchus asper (Linnaeus) Hill Herb. Brit. 1: 47. 1769. Philip E. Hyatt Common names: Spiny-leaf
    4 KB (425 words) - 19:51, 5 November 2020
  • Peterson, Stephan L. Hatch, Alan S. Weakley Synonyms: Sporobolus asper var. pilosus Sporobolus asper var. drummondii Treatment appears in FNA Volume 25. Treatment
    2 KB (156 words) - 17:58, 11 May 2021
  • Stephan L. Hatch, Alan S. Weakley Synonyms: Sporobolus asper var. hookeri Sporobolus undefined var. asper Treatment appears in FNA Volume 25. Treatment on page
    3 KB (211 words) - 17:58, 11 May 2021
  • Common names: Rough dropseed Sporobole rude Endemic Synonyms: Sporobolus asper Treatment appears in FNA Volume 25. Treatment on page 121. Plants perennial;
    5 KB (469 words) - 17:58, 11 May 2021
  • Ralph E. Brooks*, Steven E. Clemants* IllustratedEndemic Basionym: Juncus asper Engelmann Trans. Acad. Sci. St. Louis 2: 478. 1868, Treatment appears in
    3 KB (251 words) - 20:31, 5 November 2020
  • 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:
    2 KB (147 words) - 17:58, 11 May 2021
  • Endemic Basionym: Chrysothamnus asper Greene Leafl. Bot. Observ. Crit. 1: 80. 1904 Synonyms: Chrysothamnus parryi subsp. asper (Greene) H. M. Hall & Clements
    3 KB (204 words) - 20:00, 5 November 2020
  • varietyErigeron glabellus var. glabellus Guy L. Nesom Endemic Synonyms: Erigeron asper Nuttall Erigeron oblanceolatus Rydberg Treatment appears in FNA Volume 20
    2 KB (109 words) - 20:05, 5 November 2020
  • Synonyms: Cyperus asper (Liebmann) O’Neill Cyperus compresso triqueter Boeckeler Cyperus ehrenbergianus Boeckeler Cyperus mutisii var. asper (Liebmann) Kükenthal
    4 KB (399 words) - 20:39, 5 November 2020
  • J. Bogler Common names: Rough rattlesnakeroot Endemic Synonyms: Nabalus asper (Michaux) Torrey & A. Gray Treatment appears in FNA Volume 19. Treatment
    3 KB (308 words) - 19:51, 5 November 2020
  • Euklisia violacea Greene Streptanthus albidus subsp. peramoenus Streptanthus asper Greene Streptanthus biolettii Greene Streptanthus mildrediae Greene Streptanthus
    4 KB (266 words) - 22:31, 5 November 2020
  • Hooker Fl. Bor.-Amer. 2: 19. 1834. Guy L. Nesom Endemic Synonyms: Erigeron asper var. pubescens (Hooker) Breitung Erigeron glabellus subsp. pubescens (Hooker)
    4 KB (296 words) - 20:05, 5 November 2020
  • 1821. Ihsan A. Al-Shehbaz WeedyIllustratedEndemic Basionym: Cheiranthus asper Nuttall Gen. N. Amer. Pl. 2: 69. 1818 Synonyms: Cheirinia aspera (Nuttall)
    4 KB (344 words) - 22:36, 5 November 2020
  • 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
    4 KB (432 words) - 20:39, 5 November 2020
  • 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
    19 KB (654 words) - 15:41, 2 June 2022
  • 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
    4 KB (439 words) - 22:21, 5 November 2020
  • arvensis subsp. arvensis S cont. Sonchus arvensis subsp. uliginosus Sonchus asper Sonchus oleraceus S cont. Sonchus palustris Sonchus tenerrimus
    130 bytes (39 words) - 19:45, 5 November 2020
  • Sporobolus asper complex (Gramineae). Iowa State J. Res. 51:287-321 Author: Riggins, R. Year: 1977 Title: A biosystematic study of the Sporobolus asper complex
    471 bytes (46 words) - 02:39, 27 July 2019
  • File:V19-379-distribution-map.gif
    Distribution map for taxon sonchus asper
    (630 × 651 (34 KB)) - 18:36, 27 July 2019

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