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Floristic Inventory of the Florida Keys Database Online

Pilosocereus millspaughii (Britton) Byles & Rowley
Key Largo tree cactus

Pilosocereus millspaughii
Copyright by: George D. Gann
in habitat, The Exumas, Bahamas, 2009

Family: Cactaceae

Group: Dicot

Substrate: Terrestrial

Habit: Tree

Perennation: Perennial

Native Range: South Florida and the West Indies (Cuba, Bahamas, Hispaniola).

IRC SOUTH FLORIDA Status: Critically Imperiled

Map of select IRC data for peninsular Florida

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Native

SOUTH FLORIDA Cultivated Status: Assumed to be Cultivated

Comments: This was discovered in the Florida Keys by Joseph O’Brien in 1992 (Gann et al. 2002:p.299-230). It has been misidentified as P. bahamensis and treated as a broadly defined concept of P. polygonus. For a recent taxonomic revision of this and other Caribbean Pilosocereus, see Franck et al. (2019).

Synonyms: P. bahamensis, misapplied; Pilosocereus polygonus, misapplied.

FLORIDA KEYS Occurrence: Present

FLORIDA KEYS Native Status: Native

IRC FLORIDA KEYS Status: Critically Imperiled

Map of select IRC data for the Florida Keys

Other data on Pilosocereus millspaughii available from :

Atlas of Florida Vascular Plants

Pilosocereus millspaughii has been reported from the following conservation area in the FLORIDA KEYS :
Occurrence Native Status
John Pennekamp Coral Reef State Park Present Native






All Images:

Pilosocereus millspaughii
Copyright by: George D. Gann
in habitat, The Exumas, Bahamas, 2009
Pilosocereus millspaughii
Copyright by: George D. Gann
in habitat, The Exumas, Bahamas, 2009