Croptilon hookerianum (Torrey & A. Gray) House var. validum (Rydberg) E.B. Smith. Hooker's True Scratch-daisy. Phen: (Jun-) Jul-Oct. Hab: Rock outcrops, sandy areas. Dist: KS and AR south through OK to c. TX. Found in MS by John Kees.
Origin/Endemic status: Native
Synonymy: = Ar, FNA20, K3, K4, NcTx; = Haplopappus validus (Rydb.) Cory – GrPl; < Croptilon divaricatum (Nutt.) Raf. var. divaricatum – Tx
Heliophily ?: 9
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