Calflora, a 501c3 non-profit
Distribution by County   10008    
Holosteum umbellatum  L.
Jagged chickweed
Holosteum umbellatum is an annual herb that is not native to California.
Record Count by County

Lassen: 27 San Diego: 1 Siskiyou: 33
Modoc: 24 Shasta: 10 Solano: 1
Plumas: 2 Sierra: 2 Tehama: 2

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]. 2026. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 02/10/2026).