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 Mariposa: 4 Riverside: 2 Solano: 1
Amador: 1 Mendocino: 10 Sacramento: 12 Sonoma: 13
Butte: 4 Merced: 1 San Benito: 2 Stanislaus: 1
Calaveras: 1 Monterey: 5 San Joaquin: 2 Sutter: 1
Contra Costa: 4 Napa: 2 San Mateo: 11 Tehama: 2
Humboldt: 18 Nevada: 1 Santa Cruz: 2 Trinity: 2
Marin: 28 Placer: 1 Shasta: 3 Yuba: 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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/04/2024).