Poaceae
Giant bristlegrass
Setaria magna
- Family
- Poaceae
- Genus
- Setaria
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Common names
By language (1)
- English
- Giant bristlegrass
Synonyms
- Chaetochloa magna (Griseb.) Scribn.
- Chamaeraphis magna (Griseb.) Beal
Flowers
- In flower
- June to September (from 110 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Graminoid
- Lifespan
- Annual
- In the US and Canada
- Lower 48 states: native, Puerto Rico: native
Photos
FlowerPhoto: Milo Caton, CC BY 4.0, from iNaturalist 
FlowerPhoto: Senna Bryce Robeson, CC BY 4.0, from iNaturalist 
FlowerPhoto: Ashwin Srinivasan, CC BY 4.0, from iNaturalist 
FlowerPhoto: Bruce Slater, CC BY 4.0, from iNaturalist 
FruitPhoto: Kristály Cravens-Liszak, CC BY 4.0, from iNaturalist 
LeavesPhoto: Melissa Meadows, CC BY 4.0, from iNaturalist Photo: Trap Hers, CC BY-SA 4.0, from Pl@ntNet via GBIF 
Photo: Alan Weakley, CC0, from iNaturalist 
Photo: Zihao Wang, CC BY 4.0, from iNaturalist 
Photo: Alison Northup, CC BY 4.0, from iNaturalist 
Photo: botanygirl, CC BY 4.0, from iNaturalist 
Photo: Sandra Keller, CC BY 4.0, from iNaturalist
More in Setaria
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- Hooked bristlegrassSetaria verticillataPoaceae
- Japanese bristlegrassSetaria faberiPoaceae
- Marsh bristlegrassSetaria parvifloraPoaceae
- PalmgrassSetaria palmifoliaPoaceae
- African bristlegrassSetaria sphacelataPoaceae
- East Indian bristlegrassSetaria barbataPoaceae
- Bigleaf bristlegrassSetaria megaphyllaPoaceae
- Setaria cernuaPoaceae
- Streambed bristlegrassSetaria leucopilaPoaceae
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.