Helianthus praecox Engelmann & A. Gray ssp. runyonii (Heiser) Heiser. Phen: May-Oct. Hab: Coastal areas and inland in dry, open, sandy sites. Dist: S. TX.
Origin/Endemic status: Native
Synonymy: = FNA21, K4; = Helianthus debilis Nutt. ssp. runyonii Heiser – Tx
Heliophily: 9
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