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Wild Florida Photo - Helianthus radula - Rayless Sunflower

Helianthus radula

Rayless Sunflower
Stiff Sunflower

Florida native

Levy Co. FL 09/25/06
Levy Co. FL 09/25/06
Levy Co. FL 09/25/06
Levy Co. FL 09/25/06
Levy Co. FL 09/25/06
Levy Co. FL 09/25/06
Levy Co. FL 09/25/06
Levy Co. FL 09/08/07

Click on any image to open the slideshow

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.
The tiny spider in several of the photos is one of the Mecaphesa species and are called either flower spiders or crab spiders.

View online purchase options for Crab Spider on Rayless Sunflower by Paul Rebmann

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Helianthus radula is a member of the Asteraceae - Aster family.


Other species of the Helianthus genus in the Wild Florida Photo database:
  Helianthus agrestis - SOUTHEASTERN SUNFLOWER
  Helianthus angustifolius - NARROWLEAF SUNFLOWER
  Helianthus debilis var. debilis - EAST COAST DUNE SUNFLOWER
  Helianthus debilis var. vestitus - WEST COAST DUNE SUNFLOWER


Date record last modified: Sep 25, 2020


Paul Rebmann Nature Photography at pixels.com