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Floristic Inventory of the Florida Keys Database Online

Setaria parviflora (Poir.) Kerguelen
Knotroot foxtail, Yellow bristlegrass

Setaria parviflora
Copyright by: James Johnson, 2014
In habitat, Hillsboro Pineland Natural Area, Broward County, Florida
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Family: Poaceae

Group: Monocot

Substrate: Terrestrial

Habit: Herb

Perennation: Perennial

Native Range: Widespread in North America, the West Indies, Mexico, Central America and South America; a naturalized weed in Hawaii and elsewhere.

IRC SOUTH FLORIDA Status: Secure

Map of select IRC data for peninsular Florida

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Native

SOUTH FLORIDA Cultivated Status: Cultivated

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

Synonyms: Chaetochloa gracilis, C. imberbis.

FLORIDA KEYS Occurrence: Present

FLORIDA KEYS Native Status: Native

IRC FLORIDA KEYS Status: Apparently Secure

Map of select IRC data for the Florida Keys

Florida Keys History and Distribution: Reported in 1913 by John Kunkel Small for low hammocks in the lower Keys.  Although weedy, we consider this native and extant throughout the Florida Keys.  This is almost certainly more common than it was historically, spreading along roadsides and in other disturbed areas.

Other data on Setaria parviflora available from :

Atlas of Florida Vascular Plants

Setaria parviflora has been reported from the following 23 conservation areas in the FLORIDA KEYS :
Occurrence Native Status
Attwood Addition, Indian Key Historic State Park Present Native
Bahia Honda State Park Present Native
Big Torch Hammocks, Florida Keys Wildlife and Environmental Area Present Native
Biscayne National Park, Florida Keys Section Present Native
Blue Heron Hammock, Florida Keys Wildlife and Environmental Area Present Native
Crocodile Lake National Wildlife Refuge Present Native
Curry Hammock State Park Present Native
Dagny Johnson Key Largo Hammocks Botanical State Park Present Native
Dove Creek Hammocks, Florida Keys Wildlife and Environmental Area Present Native
Dry Tortugas National Park Present Native
John Pennekamp Coral Reef State Park Present Native
Key West National Wildlife Refuge Present Native
Lake San Pedro Hammocks, Florida Keys Wildlife and Environmental Area Present Native
Little Torch Hammocks, Florida Keys Wildlife and Environmental Area Present Native
Long Key State Park Present Native
Middle Torch Hammocks Parcel 3063, Florida Keys Wildlife and Environmental Area Present Native
National Key Deer Refuge Present Native
Ramrod Hammocks, Florida Keys Wildlife and Environmental Area Present Native
Snake Creek Hammocks, Florida Keys Wildlife and Environmental Area Present Native
Spoonbill Sound Hammocks, Florida Keys Wildlife and Environmental Area Present Native
Sugarloaf Hammocks, Florida Keys Wildlife and Environmental Area Present Native
Wahoo Hammocks, Florida Keys Wildlife and Environmental Area Present Native
Windley Key Fossil Reef Geological State Park Present Native




Setaria parviflora has been reported for the following 4 habitats in THE FLORIDA KEYS :
Disturbed Upland
Disturbed Wetland
Pine Rockland
Rockland Hammock


All Images:

Setaria parviflora
Copyright by: James Johnson, 2014
In habitat, Hillsboro Pineland Natural Area, Broward County, Florida
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Setaria parviflora
Copyright by: Shirley Denton
Setaria parviflora
Copyright by: Grasses, Sedges and Rushes of Palm Beach and Martin Counties, Florida website.
Setaria parviflora
Copyright by: Grasses, Sedges and Rushes of Palm Beach and Martin Counties, Florida website.