Calflora, a 501c3 non-profit
Distribution by County   6825    
Potamogeton zosteriformis  Fernald
Eel grass pondweed,   Flatstem pondweed
Potamogeton zosteriformis is an annual herb (aquatic) that is native to California, and also found elsewhere in North America and beyond.
California Rare Plant Rank: 2B.2 (rare, threatened, or endangered in CA; common elsewhere).
Record Count by County

Contra Costa: 1 Mariposa: 1 Sacramento: 1
Lake: 7 Modoc: 10 San Joaquin: 1
Lassen: 2 Mono: 1 Shasta: 4

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: 11/21/2024).