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Hymenostephium
''Hymenostephium'' is a genus of flowering plants in the family Asteraceae. It includes herbs and slender shrubs that occur from Mexico through to Venezuela and north-western Argentina. Description ''Hymenostephium'' is characterized by the relatively slender habit of the plants, 1–2 seriate involucres, and relatively small heads of flowers. There is variation in the pappus which, in part, has led to some members having been placed formerly in the now empty genus ''Haplocalymma'', or in separate genera now considered as synonymous with ''Hymenostephium''. Molecular phylogenetic data place the genus as sister to ''Sclerocarpus'' and in a relatively basal position in the subtribe Helianthinae, the group that includes the common sunflower (''Helianthus annuus'').Turner, Billie T. 2013. Recension of the Mexican species of ''Hymenostephium'' (Asteraceae:Helianthese). Phytologia 95:1-9 Species Includes 22 accepted species; * '' Hymenostephium anomalum'' (S.F.Blake) E.E.Schill. & ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hymenostephium Strigosum
''Hymenostephium'' is a genus of flowering plants in the family Asteraceae. It includes herbs and slender shrubs that occur from Mexico through to Venezuela and north-western Argentina. Description ''Hymenostephium'' is characterized by the relatively slender habit of the plants, 1–2 seriate involucres, and relatively small heads of flowers. There is variation in the pappus which, in part, has led to some members having been placed formerly in the now empty genus ''Haplocalymma'', or in separate genera now considered as synonymous with ''Hymenostephium''. Molecular phylogenetic data place the genus as sister to ''Sclerocarpus'' and in a relatively basal position in the subtribe Helianthinae, the group that includes the common sunflower (''Helianthus annuus'').Turner, Billie T. 2013. Recension of the Mexican species of ''Hymenostephium'' (Asteraceae:Helianthese). Phytologia 95:1-9 Species Includes 22 accepted species; * ''Hymenostephium anomalum'' (S.F.Blake) E.E.Schill. & Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |