Calflora, a 501c3 non-profit
Distribution by County   307    
Ammannia robusta  Heer & Regel
Grand ammania,   Grand redstem
Ammannia robusta is an annual herb that is native to California.
Record Count by County

Butte: 24 Madera: 3 San Bernardino: 2 Sonoma: 4
Colusa: 4 Marin: 3 San Diego: 14 Sutter: 5
Glenn: 5 Mendocino: 1 San Joaquin: 2 Tehama: 8
Imperial: 3 Merced: 2 San Luis Obispo: 5 Tulare: 2
Kern: 4 Napa: 7 San Mateo: 3 Ventura: 6
Kings: 2 Orange: 18 Santa Barbara: 2 Yolo: 5
Lake: 5 Riverside: 12 Santa Clara: 2 Yuba: 2
Los Angeles: 5 Sacramento: 5 Shasta: 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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/22/2024).