Plantae > Tracheophyta > Magnoliopsida > Asterales > Asteraceae > Silphium > Silphium integrifolium Silphium integrifolium (Deam's rosinweed)Synonyms: Silphium integrifolium var. deamii; Silphium integrifolium var. neglectum; Silphium integrifolium var. ternatum
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