Silphium albiflorum A. Gray. White Rosinweed. Phen: May-Jul. Hab: Prairies, open fields, in calcareous soils. Dist: Nc. to sc. TX.
Origin/Endemic status: Native
Synonymy: = FNA21, K3, K4, NcTx, Tx, Perry (1937)
Heliophily: 9
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