Calflora, a 501c3 non-profit
Distribution by County   664    
Aristida oligantha  Michx.
Oldfield three awn,   Prairie threeawn
Aristida oligantha is an annual grasslike herb that is native to California, and also found elsewhere in North America and beyond.

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 06/07/2023).