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Floristic Inventory of the Florida Keys Database Online

Crotalaria spectabilis Roth
Showy rattlebox

Crotalaria spectabilis
Copyright by: John Bradford

Family: Fabaceae

Group: Dicot

Substrate: Terrestrial

Habit: Herb

Perennation: Annual

Map of South Florida Locations

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Not Native, Naturalized

SOUTH FLORIDA Cultivated Status: Not Cultivated

Comments: For more images, click on the Atlas of Vascular Plants link below.

Synonyms: C. sericea.

FLORIDA KEYS Occurrence: Present

FLORIDA KEYS Native Status: Not Native, Naturalized

Map of Florida Keys Locations

Florida Keys History and Distribution: Reported in 1913 by John Kunkel Small for disturbed areas on the island of Key West.  Sparingly naturalized.  An herbarium voucher is needed for the Monroe County Keys.

Other data on Crotalaria spectabilis available from :


Crotalaria spectabilis has been reported from the following 2 conservation areas in the FLORIDA KEYS :
Occurrence Native Status
Crocodile Lake National Wildlife Refuge Present Not Native, Naturalized
Dagny Johnson Key Largo Hammocks Botanical State Park Present Not Native, Naturalized




Crotalaria spectabilis has been reported for the following habitat in THE FLORIDA KEYS :
Disturbed Upland


All Images:

Crotalaria spectabilis
Copyright by: John Bradford

Crotalaria spectabilis
Copyright by: Shirley Denton

Crotalaria spectabilis
Copyright by: Robert Grant, 2015
In habitat, Redland Farming area, Miami-Dade County,
Florida