|Photo by Wayne Matchett, SpaceCoastWildflowers.com|
|Division:||Magnoliophyta - Flowering plants|
|Class:||Magnoliopsida – Dicotyledons|
|Natural range of Stylisma villosa from USDA NRCS Plants Database.|
Common name: Hairy dawnflower
Synonyms: Bonamia villosa (Nash) K.A. Wilson; Breweria villosa Nash.
S. villosa is a perennial vine that has wiry, twining, thick, pubescent stems. The leaves are alternate, elliptical/oval, densely covered with white hairs and are held upright at a right angle to the ground, which reduces water loss from transpiration during the heat of the day. Inflorescence are solitary or in cymes of 3-7 flowers. Flowers have white corollas and are about two centimeters broad. This species is commonly mistaken for S. aquatica when not flowering.
Found in Florida, Georgia, Mississippi, Louisiana, and Texas. Listed as vulnerable in Texas.
In the Coastal Plain in Florida, S. villosa habitats include longleaf pine/scrub oak sand ridges, moist lake shores, and sandy longleaf pine-scrub hickory-oak woods. It can be found in disturbed scrubs, hammocks and along canals through a burned wetland slash pine savanna.
Flowers May through June and fruits June through November.
Leafcutting bees such as Dianthidium floridiense (family Megachilidae) were observed visiting flowers of Stylisma villosa at the Archbold Biological Station:
Conservation, cultivation, and restoration
Flowers of Stylisma villosa
Photo by Wayne Matchett, SpaceCoastWildflowers.com
References and notes
- Weakley, A.S. 2015. Flora of the southern and mid-atlantic states. Working Draf of 21 May 2015. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
- []Native Florida Wildflowers. Accessed: March 16, 2016.
- Hoffman, S.J.. Taxonomic and phylogenetic evaluation of Stylisma (Convolvulaceae). Thesis: University of North Carolina Wilmington
- Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: November 2015. Collectors: Edwin L. Bridges, Robert K. Godfrey, Robert Kral, O. Lakela, Sidney McDaniel, J.B. McFarlin, Steve L. Orzell, Allen G. Shuey. States and Counties: Florida: DeSoto, Highlands, Martin, Palm Beach, Orange, Polk. Compiled by Tall Timbers Research Station and Land Conservancy.
- []NatureServe. Accessed: March 16, 2016
- Platt, W.J., R. Carter, G. Nelson, W. Baker, S. Hermann, J. Kane, L. Anderson, M. Smith, K. Robertson. 2021. Unpublished species list of Wade Tract old-growth longleaf pine savanna, Thomasville, Georgia.
- Deyrup, M.A. and N.D. 2015. Database of observations of Hymenoptera visitations to flowers of plants on Archbold Biological Station, Florida, USA.