Poaceae
Purple threeawn
Aristida purpurea
- Family
- Poaceae
- Genus
- Aristida
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Common names
By language (1)
- English
- Purple threeawn, Democrat grass, Wiregrass
Synonyms
- Aristida aequiramea Scheele
- Aristida berlandieri (Trin. & Rupr.) Hitchc.
- Aristida breviseta Buckley
- Aristida brownii Warnock
- Aristida eggersii Hitchc.
- Aristida fasciculata var. californica (Vasey) L.H.Dewey
- Aristida fasciculata var. hookeri (Trin. & Rupr.) L.H.Dewey
- Aristida fasciculata var. micrantha (Vasey) L.H.Dewey
- Aristida filipendula Buckley
- Aristida longiseta var. hookeri (Trin. & Rupr.) Merr.
- Aristida micrantha (Vasey) Nash
- Aristida muhlenbergioides E.Fourn.
- Aristida purpurea f. brownii (Warnock) Allred & Valdés-Reyna
- Aristida purpurea var. aequiramea (Scheele) Merr.
- Aristida purpurea var. berlandieri Trin. & Rupr.
- Aristida purpurea var. californica Vasey
- Aristida purpurea var. capillarifolia Merr.
- Aristida purpurea var. hookeri Trin. & Rupr.
- Aristida purpurea var. laxiflora Merr.
- Aristida purpurea var. micrantha Vasey
- Aristida purpurea var. perplexa Allred & Valdés-Reyna
- Aristida purpurea var. purpurea
- Aristida roemeriana Scheele
Characteristics
- Growth habit
- Graminoid
- Lifespan
- Annual, Perennial
- In the US and Canada
- Canada: native, Lower 48 states: native
Photos
Photo: User:Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: John Rusk from Berkeley, CA, United States of America, CC BY 2.0, from Wikimedia Commons 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons
More in Aristida
- Sixweeks threeawnAristida adscensionisPoaceae
- Aristida rufescensPoaceae
- Pineland threeawnAristida strictaPoaceae
- Aristida behrianaPoaceae
- California threeawnAristida californicaPoaceae
- Chase's threeawnAristida chaseaePoaceae
- Tassel three-awnAristida congestaPoaceae
- Poverty threeawnAristida divaricataPoaceae
- Prairie threeawnAristida oliganthaPoaceae
- Arrowfeather threeawnAristida purpurascensPoaceae
- Aristida acutaPoaceae
- Forked threeawnAristida basirameaPoaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.