Symphyotrichum patens (Aiton) Nesom var. patentissimum (Lindley ex A.P. de Candolle) Nesom. Ozark Clasping Aster. Phen: Aug-Oct. Hab: Glades, upland prairies, woodlands, forest edges. Dist: Var. patentissimum is largely Ozarkian, east to scattered locations in w. KY.
Origin/Endemic status: Endemic
Taxonomy Comments: See discussion in Nesom (2006oo).
Synonymy: = Ar, FNA20, K1, K3, K4, Mo2, Nesom (2006oo); = Aster patens Aiton var. patentissimus (Lindl. ex DC.) Torr. & A.Gray – C, F, G, GrPl, NcTx, SE1, Jones (1983); = Symphyotrichum patentissimum (Lindl. ex DC.) Mohlenbr. – Il; < Aster patens Aiton – Tx; < Lasallea patens (Aiton) Semple & Brouillet – Semple & Brouillet (1980a)
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