Helianthus membranifolius is a species of sunflower in the family Asteraceae. It is native to Cayenne Island in French Guiana, part of the French Republic.Poiret, Jean Louis Marie 1813. Encyclopédie méthodique, botanique Supplément 3: 18 diagnosis in Latin, description + commentary in FrenchTropicos, Helianthus membranifolius Poir.
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