heterotheca : Idioms & Phrases
genus heterotheca
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noun genus of yellow-flowered North American herbs
Heterotheca.
WordNet
heterotheca villosa
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noun hairy perennial with yellow flower heads in branched clusters; found almost everywhere in dry places from Canada to west central and western United States; sometimes placed in genus Chrysopsis
Chrysopsis villosa; prairie golden aster; hairy golden aster.