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Floristic Inventory of the Florida Keys Database Online

Amaranthus crassipes Schltdl.
Spreading amaranth

Amaranthus crassipes
Copyright by: Fairchild Tropical Botanic Garden
J.K. Small s.n. FTG
Key West, Florida, 1912

Family: Amaranthaceae

Group: Dicot

Substrate: Terrestrial

Habit: Herb

Perennation: Annual

Native Range: Southern United States (perhaps only South Florida), the West Indies, Mexico, Central America and South America; naturalizing outside of its native range. In South Florida, known only from Key West.

IRC SOUTH FLORIDA Status: Presumed Extirpated or Extinct in the Wild

Map of select IRC data for peninsular Florida

SOUTH FLORIDA Occurrence: Presumed Extirpated

SOUTH FLORIDA Native Status: Assumed to be Native

South Florida History and Distribution: Although treated as nonnative in Florida by the Atlas of Florida Vascular Plants and others, or as probably introduced and a waif in South Florida (Weakely 2022), this was first collected between 1836 and 1853 in Key West, and then again there in 1895 and 1912. Although it is somewhat weedy, it is native throughout the West Indies, including Cuba and the Bahamas, and we treat it as assumed to be native and presumed extirpated in South Florida.

SOUTH FLORIDA Cultivated Status: Not Cultivated

Comments: For an image, visit the Flora of the West Indies.

FLORIDA KEYS Occurrence: Presumed Extirpated

FLORIDA KEYS Native Status: Presumed Extirpated

IRC FLORIDA KEYS Status: Presumed Extirpated

Map of select IRC data for the Florida Keys

Florida Keys History and Distribution: First collected between 1838 and 1853 by John Loomis Blodgett on the island of Key West. Also collected at Key West by A.H. Curtiss in 1895. Reported in 1913 by John Kunkel Small for hammocks and disturbed sites in the lower Keys. We know of no recent collections.

Other data on Amaranthus crassipes available from :

Amaranthus crassipes has been reported for the following habitat in THE FLORIDA KEYS :
Disturbed Upland

All Images:

Amaranthus crassipes
Copyright by: Fairchild Tropical Botanic Garden
J.K. Small s.n. FTG
Key West, Florida, 1912