Comandra umbellata (Linnaeus) Nuttall var. pallida (A.P. de Candolle) M.E. Jones. Western Comandra, Western Bastard-toadflax. Phen: May-Jul. Hab: Dry upland forests and woodlands, glades, barrens, savannas, upland prairies. Dist: MN, MB, NT, and YT south to nc. TX, NM, AZ, and n. Mexico (CHH, COA, SON).
Origin/Endemic status: Native
Taxonomy Comments: The differences between the two taxa in our region seem adequate for species rank (Cronquist [1991] calls the varieties "well-marked"), but they allegedly "intergrade over a wide area in Ont., Sask., ND, SD, and NE… the zone of interfertility is narrow in the south becoming more extensive northward" (Great Plains Flora Association 1986).
Synonymy ⓘ: = C; = Comandra pallida DC. – F, G, Mex, Tx; = Comandra umbellata (L.) Nutt. ssp. pallida (DC.) Piehl – FNA12, GrPl, K1, K3, NcTx, Piehl (1965)
Heliophily ⓘ: 8
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