Regularity: Regularly occurring
Global Range: Known only from southern peninsular Florida near Miami on Miami oolite formation. Was previously more abundant than at present.
Comments: Found only within hammock vegetation growing on limestone sinkhole walls or edges near Miami, Florida. Population in Costello Hammock very local and scattered near old burn site in south central region of park.
Number of Occurrences
Note: For many non-migratory species, occurrences are roughly equivalent to populations.
Estimated Number of Occurrences: 1 - 5
Comments: Only known from Deering Estate, Cutler and Owissa-Bauer and Costello Hammocks near Homestead.
National NatureServe Conservation Status
Rounded National Status Rank: N1 - Critically Imperiled
NatureServe Conservation Status
Rounded Global Status Rank: GNA - Not Applicable
Reasons: Florida endemic, which is very rare and localized; the Florida Natural Areas Inventory database contains 3 occurrences in its database. This species can be sensitive to over-collection and is easily destroyed by fire and direct sunlight. Rapid development of south Florida threatens this species.
Comments: Found only at Deering Estate, Owissa-Bauer and Costello Hammocks. All sites are parks within Dade County park system, but collectors could easily extirpate this species in 1 afternoon.
Biological Research Needs: Additional sites may be as yet unknown in some of the more remote hammocks on Long Pine Key in Everglades Nat'l Park.
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