Wild Florida Photo
Nature Photography by Paul Rebmann
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Helianthus radula
RAYLESS SUNFLOWER
STIFF SUNFLOWER
Florida native
A frequent plant of wet flatwoods throughout much of the panhandle, the north and central peninsula, plus Collier County. The range includes the southeastern coastal states from Louisiana to South Carolina.
The distinctive brown-purple disk floret on a stem typically a meter (39 in.) or more tall, usually has no ray florets, or if it does, they are typically few in number, small and yellow. Well developed basal leaves. hairy and rough in rosettes, lower stem leaves are opposite and elliptic to ovate, greatly reduced above, with the upper stem leafless.
Helianthus radula is a member of the Asteraceae - Aster family.
Other species of this genus in the Wild Florida Photo database:
View Helianthus debilis var. debilis - EAST COAST DUNE SUNFLOWER
View Helianthus debilis var. vestitus - WEST COAST DUNE SUNFLOWER
View Helianthus angustifolius - NARROWLEAF SUNFLOWER
The Guide to Florida Wildflowers
Walter Kingsley Taylor
A guide to 574 wildflowers found in Florida, organized by color with photographs and descriptions of each.Each entry includes common names, genus, species and family and a description of the plant with habitat and distribution information, flowering time and other comments.
Purchase or get more information by clicking on the following image/link:
Atlas of Florida Vascular Plants (Institute for Systemic Botany) profile for this species
USDA Plant Profile for this species
Date record last modified:
Sep 16, 2009