Argythamnia humilis (Engelmann & A. Gray) Müller of Aargau. Low Silverbush. Phen: (Jan-) Jun-Aug (-Dec). Hab: Dry rocky or sandy prairies, other open areas; eastwards as a waif in disturbed ground. Dist: Sw. KS and se. CO south to s. TX, w. TX, se. NM, and ne. Mexico (COA, NLE, TAM, ZAC).

Origin/Endemic status: Native

Synonymy: = FNA12, K4; = Ditaxis humilis (Engelm. & A.Gray) Pax – Mex; = n/a – RAB; > Argythamnia humilis (Engelm. & A.Gray) Müller of Aargau var. humilis – GrPl, K3, Tx; > Argythamnia humilis (Engelm. & A.Gray) Müller of Aargau var. laevis (Torr.) Shinners – GrPl; > Ditaxis humilis (Engelm. & A.Gray) Pax var. humilis – NcTx

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