Stipa brachychaeta is a perennial grasslike herb that is not native to California.
There is a high risk of this plant becoming invasive in California according to Cal-IPC.
[cal-ipc.org] South America Native, Habitat, Dispersion: Stipa brachychaeta (punagrass) is a perennial grass (family Poaceae) that can grow to be more than 2 feet tall and is found in the Central Valley and the central and south coast ranges of California. It is native to South America. It favors grasslands, woodlands, and riparian and bottomland habitat. It spreads via seed and vegetatively from creeping roots. Water helps this plant disperse. (link added by Mary Ann Machi)
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2025.The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 04/09/2025).