Helianthus longifolius

Plants

Lounsberry, Alice.; Rowan, Marian Ellis Ryan · public_domain

About

Helianthus longifolius is a North American species of sunflower known by the common name longleaf sunflower. It is native to the southeastern United States.

Summary from Wikipedia

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Growing details and traits for Helianthus longifolius in the Library.

No cultivars in the Library yet — the full profile above covers the species itself.