Calflora, a 501c3 non-profit
Distribution by County   11718    
Glyceria ×occidentalis  (Piper) J. C. Nelson
Western manna grass
Glyceria ×occidentalis is a perennial grasslike herb (aquatic) that is not native to California.
Record Count by County

Alameda: 2 Mendocino: 10 San Benito: 2 Stanislaus: 1
Amador: 1 Merced: 1 San Joaquin: 2 Sutter: 1
Butte: 4 Monterey: 4 San Mateo: 8 Tehama: 2
Calaveras: 1 Napa: 2 Santa Cruz: 2 Trinity: 2
Contra Costa: 4 Nevada: 1 Shasta: 3 Yuba: 2
Humboldt: 18 Placer: 1 Siskiyou: 1
Marin: 27 Riverside: 2 Solano: 1
Mariposa: 4 Sacramento: 12 Sonoma: 13

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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 04/26/2024).