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Eriochloa michauxii (Poir.) Hitchc. var. simpsonii
Hitchc.
Simpson's cup grass

Eriochloa michauxii
Copyright by: University of South Florida Herbarium
Brumbach 5583, the last known specimen collected.

Family: Poaceae

Group: Monocot

Substrate: Terrestrial

Habit: Herb

Perennation: Perennial

Native Range: Endemic to South Florida.

Map of select IRC data for peninsular Florida

NatureServe Global Status: Critically Imperiled

Florida Natural Areas Inventory State Status: Possibly Extirpated or Extinct

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

SOUTH FLORIDA Occurrence: Presumed Extirpated

SOUTH FLORIDA Native Status: Native

South Florida History and Distribution: Ranked as possibly extirpated in Rare Plants of South Florida (Gann et al. 2002; pp 144-145) based on several collections made between 1891 and 1966 from Lower Matecomube Key in the lower Florida Keys north to Sanibel Island in Lee County. No new records are known, and published as globally extinct in 2020 (Knapp et al. 2020).

SOUTH FLORIDA Cultivated Status: Not Cultivated

Comments: For more specimen images, visit the Encylopedia of Life and click on the USF Atlas of Florida Vascular Plants link below.

See also, IRC’s report Vascular plant species of management concern in Everglades National Park (Gann 2015), page 145.

Other data on Eriochloa michauxii var. simpsonii available from :

Eriochloa michauxii var. simpsonii has been found in the following conservation area :
Occurrence Native Status
Everglades National Park Presumed Extirpated Presumed Extirpated

Eriochloa michauxii var. simpsonii has been found in the following 4 counties :
Occurrence Native Status
Collier County Presumed Extirpated Presumed Extirpated
Lee County Presumed Extirpated Presumed Extirpated
Monroe County (Keys) Presumed Extirpated Presumed Extirpated
Monroe County (Mainland) Presumed Extirpated Presumed Extirpated

Eriochloa michauxii var. simpsonii has been found in the following 2 habitats :
Coastal Grassland
Disturbed Upland

All Images:

Eriochloa michauxii
Copyright by: University of South Florida Herbarium
Brumbach 5583, the last known specimen collected.