Identity
Unique IDELEMENT_GLOBAL.2.147762
Element CodePDLYT0B030
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
IUCNLeast concern
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderMyrtales
FamilyLythraceae
GenusRotala
COSEWICE,T
Other Common Nameslowland rotala (EN) Lowland Toothcup (EN) Rotala rameux (FR)
Concept ReferenceKartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2023-05-04
Change Date1984-08-29
Edition Date2023-05-04
Edition AuthorsNordman, C. (2023).
Threat ImpactLow
Range Extent>2,500,000 square km (greater than 1,000,000 square miles)
Number of Occurrences> 300
Rank ReasonsRotala ramosior occurs in temperate and tropical North and South America. It is a wetland plant, found in much of the eastern United States, the Central Valley of California and at scattered locations elsewhere in the western United States. It occurs (in the United States) on various National Forests, National Wildlife Refuges, lands of the U.S. Army Corps of Engineers, and state conservation lands. Threats include the conversion of its habitat for agriculture or aquaculture, drainage of wetlands, and other water management which impacts wetlands.
Range Extent CommentsRotala ramosior occurs in temperate and tropical North and South America, from southern British Columbia and Ontario in Canada, the United States, Mexico, Cental America and the Caribbean, to Peru and Brazil. It occurs in much of the eastern United States, from southern New England, to Florida, central Texas and the eastern Great Plains. It occurs in the Central Valley of California and at scattered locations elsewhere in the western United States. It is introduced in Africa, Europe and Asia. The native range extent in the Americas is estimated to be 34 million square kilometers (GBIF 2023, Godfrey and Wooten 1981, Graham 2022).
Occurrences CommentsBased on herbarium collections, photo-based observations, and anecdotal evidence, there are likely over 300 occurrences rangewide (GBIF 2023).
Threat Impact CommentsRotala ramosior is a wetland plant, threats include the conversion of its habitat for agriculture or aquaculture, drainage of wetlands, and other water management which impacts wetlands.