Native & Naturalized Plants of the Carolinas & Georgia

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camera icon speaker icon Common Name: Hairy Sunflower, Rough Sunflower
Weakley's Flora: (11/30/12) Helianthus hirsutus
SYNONYMOUS WITH PLANTS National Database: Helianthus hirsutus
SYNONYMOUS WITH Vascular Flora of the Carolinas (1968): Helianthus hirsutus 179-65-012

Ray florets 10-15. Disc florets' lobes yellow; anthers dark brown or black, per Flora of North America.

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"When the stem leaves grow directly across from each other, in pairs, the leaves are called opposite; when they grow in circles of threes, fours, fives, and so on, they are termed whorled. If... the leaves are arranged singly on the stem, first at one point and then at another, they are alternate." — Lawrence Newcomb, Newcomb's Wildflower Guide