Helianthus radula (Pursh) Torrey & A. Gray. Common name: Roundleaf Sunflower, Rayless Sunflower. Phenology: Late Aug-Oct. Habitat: Longleaf pine sandhills and dryish savannas, and dry pine flatwoods. Distribution: S. SC south to s. peninsular FL and west to se. LA
ID notes: It is readily distinguishable from all other species of Helianthus by its rosette of orbicular to nearly round leaves, borne flat against the ground.
Origin/Endemic status: Endemic
Synonymy ⓘ: = Fl7, FNA21, GW2, K4, RAB, S, SE1, WH3; Rudbeckia radula Pursh. Basionym: Rudbeckia radula Pursh 1814
Links to other floras: = Helianthus radula - FNA21
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Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FAC
Heliophily ⓘ: 9
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