Aira sp.
Family: Poaceae · Type: Annual · Variable; species dependent
Aira sp. is a non-native California annual in the Poaceae family.
How to tell it apart
vs Briza: Aira has delicate linear spikelets; Briza has distinctive heart-shaped, dangling spikelets.; vs Eriocoma: Aira is a tiny silvery annual; Eriocoma is a robust perennial bunchgrass with twisted awns.; vs Vahlodea: Aira is annual with no axis extension; Vahlodea is perennial with tiny axis extension.; vs Deschampsia: Aira is annual and delicate; Deschampsia is perennial, often forming dense tufts.; vs Trisetum: Aira has no axis extension beyond flowers; Trisetum has a hairy bristle extending beyond.
Frequently asked questions
Is Aira sp. native to California?
No. Aira sp. is not native to California (recorded as variable; species dependent).
What plant family does Aira sp. belong to?
Aira sp. is in the Poaceae family, genus Aira.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · CalPhotos
Last updated 2026-04-14
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.