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''Brickelliastrum'' is a North American genus of flowering plants in the tribe boneset tribe within the sunflower fammily.〔King, R. M. and H. Robinson. 1972 Studies in the Eupatorieae (Asteraceae) LXXVIII. A new genus, ''Brickelliastrum''. Phytologia 62: 63-64.24(2): 64. 1972.〕〔D.J.N.Hind & H.E.Robinson. 2007. Tribe Eupatorieae In: ''The Families and Genera of Vascular Plants'' vol.VIII. (Joachim W.Kadereit & Charles Jeffrey, volume editors. Klaus Kubitzky, general editor). Springer-Verlag. Berlin, Heidelberg.〕 ''Brickelliastrum'' has at times been lumped with ''Brickellia'' or ''Steviopsis'', but chromosome number (''x''=10) and molecular data are in agreement in showing that it is distinct from either of these.〔Schilling, E. E., J. L. Panero, B. S. Crozier & P. Davila. 2013. Relationships of ''Asanthus'' (Asteraceae, Eupatorieae). Systematic Botany 38: 253-258.〕 Despite having the general appearance of ''Brickellia'', members of ''Brickelliastrum'' have cypselae that have only 5-7 ribs (vs. 10), funnel-shaped corollas, and a style with an unenlarged, glabrous base. There is only one recognized species, ''Brickelliastrum fendleri'' It is native to the southwestern United States (Arizona, New Mexico, and western Texas) and northern Mexico (Coahuila).〔(''Brickelliastrum'' in Flora of North America )〕〔(Biota of North America Program 2014 county distribution map )〕〔Turner, B. L. 1997. The Comps of Mexico: A systematic account of the family Asteraceae, vol. 1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272〕 ;formerly included〔 * ''Brickelliastrum nesomii'' (B.L.Turner) R.M.King & H.Rob., see ''Steviopsis nesomii'' B.L.Turner * ''Brickelliastrum villarrealii'' R.M.King & H.Rob., see ''Steviopsis nesomii'' B.L.Turner ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Brickelliastrum」の詳細全文を読む スポンサード リンク
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