Regularity: Regularly occurring
Localities documented in Tropicos sources
United States (North America)
Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
- Anonymous. 1986. List-Based Rec., Soil Conserv. Serv., U.S.D.A. Database of the U.S.D.A., Beltsville. http://www.tropicos.org/Reference/1103
- Small, J. K. 1933. Man. S.E. Fl. i–xxii, 1–1554. Published by the Author, New York. http://www.tropicos.org/Reference/1515
- Godfrey, R. K. & J. W. Wooten. 1981. Aquatic Wetland Pl. S.E. U.S. Dicot. 933 pp. Univ. Georgia Press, Athens. http://www.tropicos.org/Reference/1711
- Cronquist, A. J. 1980. Asteraceae. 1: i–xv, 1–261. In Vasc. Fl. S.E. U. S. The University of North Carolina Press, Chapel Hill. http://www.tropicos.org/Reference/1714
Global Range: Endemic to northeast Florida; found in Flagler and St. Johns counties. Historic records (pre-1950) from Clay and Volusia counties.
Comments: Clearings of moist to wet low pineland savannas, typically on black, highly organic sandy peat (Kral 1983).
Number of Occurrences
Note: For many non-migratory species, occurrences are roughly equivalent to populations.
Estimated Number of Occurrences: 6 - 20
Comments: 19 known occurrences as of 2004 Status Survey.
Life History and Behavior
National NatureServe Conservation Status
Rounded National Status Rank: N1 - Critically Imperiled
NatureServe Conservation Status
Rounded Global Status Rank: G1 - Critically Imperiled
Reasons: A Florida endemic, with 19 known occurrences, located in Flagler and St. Johns counties. Populations are decreasing due to drainage of habitat for agriculture and residential construction.
Environmental Specificity: Narrow. Specialist or community with key requirements common.
Global Short Term Trend: Decline of 10-30%
Comments: Known population increased as of the 2004 Status Survey but there are no known protected popualtions and most are threatened by roadside management.
Global Long Term Trend: Decline of 70-90%
Degree of Threat: Very high - high
Comments: Habitat being drained for agriculture and some for residential construction (stormwater treatment).
Relevance to Humans and Ecosystems
Stewardship Overview: Controlled burnings and/or clearcutting of overstory may be a necessary part of a management regimen for this species. Its habitat should never be drained (Kral, 1983).