Southeastern United States, the Greater Antilles (Cuba), Mexico, Central America and South America.
IRC SOUTH FLORIDA Status:
Presumed Extirpated or Extinct in the Wild
Map of select IRC data for peninsular Florida
SOUTH FLORIDA Occurrence:
SOUTH FLORIDA Native Status:
SOUTH FLORIDA Cultivated Status:
For an image of an herbarium specimen collected on Big Pine Key in the Monroe County Keys by George N. Avery and Martha B. Meagher in 1974, visit the Atlas of Florida Vascular Plants
C. echinatum, misapplied.
FLORIDA KEYS Occurrence:
FLORIDA KEYS Native Status:
IRC FLORIDA KEYS Status:
Map of select IRC data for the Florida Keys
Florida Keys History and Distribution:
John Loomis Blodgett first collected prickly hornwort in South Florida between 1838 and 1853 (s.n., NY), probably on Big Pine Key, although the specimen label indicates only “South Florida.” Not reported for the Florida Keys by John Kunkel Small in 1913. Ellsworth P. Killip made the next collection in 1940 at Watson Hammock on Big Pine Key (32868, US), which is now located within the National Key Deer Refuge. It was last observed in the Florida Keys by George N. Avery in 1978. For more information, see IRC's species account