Calflora, a 501c3 non-profit
Distribution by County   6814    
Potamogeton illinoensis  Morong
Illinois pondweed,   Pondweed,   Shining pondweed
Potamogeton illinoensis is a perennial herb (aquatic) that is native to California, and also found elsewhere in North America and beyond.
Record Count by County

Alameda: 9 Mendocino: 8 San Francisco: 5 Sonoma: 2
Butte: 6 Merced: 1 San Joaquin: 2 Stanislaus: 1
Inyo: 2 Mono: 1 San Luis Obispo: 5 Yuba: 2
Lake: 1 Plumas: 2 San Mateo: 7
Lassen: 3 San Bernardino: 19 Santa Clara: 5
Los Angeles: 6 San Diego: 7 Solano: 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: 11/23/2024).