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Scientific classification

S. uniflora
Binomial name
Sclerolepis uniflora
(Walter) Britton, Sterns & Poggenb.

Ethulia uniflora Walter

Sclerolepis is an aquatic plant native to the eastern United States. It has only one known species, Sclerolepis uniflora, the pink bogbutton.[1] It lives in ponds and other wet areas. When water is abundant, the plant lives underwater, with long stems and flaccid, elongated leaves, and does not flower. When the water level drops, it assumes a form more familiar in terrestrial plants, with an erect stem, and flowers in summer to fall. The flowers are pink.[2][3][4]

Sclerolepis is fairly common in the southeastern United States, from Alabama and Florida to North Carolina, and has more sparse distribution as far north as New Hampshire.[2]


Sclerolepis is in the tribe Eupatorieae of the aster family. It is thought to be related to two other aquatic genera in this tribe, Shinnersia and Trichocoronis.[5]


  1. ^ "Sclerolepis uniflora". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 8 November 2015.
  2. ^ a b "Sclerolepis Cassini". Flora of North America.
  3. ^ Godfrey, R. K. & J. W. Wooten. 1981. Aquatic and Wetland Plants of Southeastern United States Dicotyledons 1–944. Univ. Georgia Press, Athens
  4. ^ Wunderlin, R. P. 1998. Guide to the Vascular Plants of Florida i–x, 1–806. University Press of Florida, Gainesville
  5. ^ "Shinnersia rivularis (A. Gray) R. M. King & H. Robinson". Flora of North America.

External links[edit]

  • Sclerolepis uniflora by Debra Dunlop, from the New England Plant Conservation Program Conservation and Research Plan