Helenium microcephalum A.P. de Candolle. Phen: May-Jul. Hab: Ditches, washes, eastwards as a waif in waste areas around wool-combing mills (Nesom 2004d). Dist: Native of OK, TX, NM, CO, and Mex.
Origin/Endemic status: Native
Synonymy: = K4, Mex, NcTx; = Helenium microcephalum DC. var. microcephalum – FNA21, GrPl, K1, K3, Bierner (1972); = n/a – RAB