Calflora, a 501c3 non-profit
Distribution by County   787    
Aster oregonensis  (Nutt.) Cronquist

(not an active name)
Oregon aster, Oregon white topped aster
Aster oregonensis is a perennial herb that is native to California, and also found elsewhere in western North America.
Record Count by County

Amador: 4 Humboldt: 4 Placer: 14 Trinity: 11
Butte: 37 Madera: 3 Plumas: 29 Tulare: 1
Calaveras: 1 Mariposa: 7 Shasta: 15 Tuolumne: 8
Del Norte: 15 Mendocino: 1 Sierra: 9 Yuba: 6
El Dorado: 45 Modoc: 1 Siskiyou: 6
Fresno: 2 Nevada: 15 Tehama: 1

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: 02/06/2026).