Calflora, a 501c3 non-profit
Distribution by County   7238    
Ruppia cirrhosa  (Petagna) Grande
Ditch grass,   Spiral ditchgrass
Ruppia cirrhosa is a perennial herb (aquatic) that is native to California, and also found elsewhere in North America and beyond.
Record Count by County

Contra Costa: 2 Los Angeles: 7 Orange: 5 Santa Barbara: 12
Humboldt: 2 Marin: 4 Riverside: 4 Santa Cruz: 4
Imperial: 11 Mendocino: 1 San Bernardino: 9 Solano: 1
Inyo: 15 Merced: 1 San Diego: 3 Ventura: 6
Kern: 2 Mono: 4 San Luis Obispo: 6
Lake: 7 Monterey: 1 San Mateo: 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: 12/03/2024).