Helianthus silphioides
PlantsFamily: Asteraceae · Genus: Helianthus
Eric Hunt · cc_by_sa
About
Helianthus silphioides is a North American species of sunflower known by the common names rosinweed sunflower or Ozark sunflower. It is native to the central United States, primarily in the Ozarks and the Tennessee Valley with additional populations north into Kentucky and Illinois and south as far as Louisiana, Mississippi and Alabama.
Summary from Wikipedia
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Growing details and traits for Helianthus silphioides in the Library.
No cultivars in the Library yet — the full profile above covers the species itself.