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Prairie Three-awn

Aristida oligantha

Found in rock outcrops in thin soil, roadsides, fields, disturbed areas. FloraQuest, phone app (app page) What its natural habitat tells you

21
Good

Native to Florida. How scores work Is it native here?

Profile 76%

Light
Full sun
Soil moisture
Dry
Will it fit your yard?

At a glance

Life cycle
Annual
Bloom
May to November

Not yet recorded · Height · Spread · Leaves

This plant is missing most of its facts, so Quercus is looking them up in old botany books.

Recorded in 6 Florida counties.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

1 of 2

Cliffs, ledges and rocky summits

Trees and rocks on Little Kennesaw Mountain.
Named place / source context. Shown: Kennesaw Mountain National Battlefield Park, Georgia, a neighboring state.Trees and rocks on Little Kennesaw Mountain., Unidentified in HFC record, undated. Public domain. Source record.

Roadsides, fields and disturbed ground

Ground opened by people: roadsides, old fields, pastures, fencerows and lots.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

3CaterpillarsGenus host records with ranges including FL

Genus host records with ranges including FL · Aristida

  • Doryodes bistrialisDouble-Lined Doryodes
  • Hesperia attalusDotted Skipper
  • Hesperia meskeiMeske's Skipper
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
0BeesSoutheastern regional records
0Specialist beesPollen specialists
—BirdsRecorded genus food-resource interactions; not a state feeding claim

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Poaceae
Flower color
Purple or brown

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope
  • Bloom · “May to November” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia
  • Flower color · “Purple or brown” · Lady Bird Johnson Wildflower Center
  • Life cycle · “Annual” · Lady Bird Johnson Wildflower Center
  • Light · “Full sun (documented habitat)” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia
  • Soil · “Dry (documented habitat)” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia
Also known as

Old Field Three Awn; Prairie Three Awn

Conservation status

Florida rankSNR
Global rankG5
FL statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

Will it fit your yard?

Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.

Choose a county to begin.

How to check your spot

Sources