Calflora, a 501c3 non-profit
Distribution by County   1368    
Chaparral false bindweed, Modoc morning glory, Western morning glory
Calystegia occidentalis ssp. occidentalis is a perennial herb that is native to California, and also found elsewhere in western North America.
Record Count by County

Alameda: 6 Lake: 15 Orange: 1 Siskiyou: 18
Amador: 5 Lassen: 9 Placer: 27 Solano: 7
Butte: 52 Los Angeles: 3 Plumas: 44 Sonoma: 10
Calaveras: 1 Madera: 1 Sacramento: 5 Sutter: 1
Colusa: 3 Marin: 9 San Benito: 1 Tehama: 42
Del Norte: 38 Mariposa: 10 San Joaquin: 1 Trinity: 32
El Dorado: 5 Mendocino: 21 San Mateo: 13 Tulare: 5
Fresno: 4 Modoc: 32 Santa Clara: 7 Tuolumne: 32
Glenn: 1 Monterey: 1 Santa Cruz: 4 Yolo: 5
Humboldt: 22 Napa: 13 Shasta: 36 Yuba: 7
Kern: 2 Nevada: 20 Sierra: 5

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: 10/05/2026).