Plantae > Tracheophyta > Magnoliopsida > Asterales > Asteraceae > Croptilon > Croptilon rigidifolium Croptilon rigidifolium (stiffleaf scratchdaisy)Synonyms: Croptilon divaricatum var. hirtellum; Haplopappus rigidifolius (homotypic); Heteropappus rigidifolius; Isopappus divaricatus var. hirtellus (homotypic)
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