Calflora Taxon Report
Potamogeton crispus L.
Crispate leaved pondweed, Curly pondweed, Cut leaved pondweed
Potamogeton crispus is a perennial herb (aquatic) that is not native to California.
Cal-IPC rating: moderate

Alternate Names and Sources:
None
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Bloom Period
redone or more occurrences
within a 7.5-minute quadrangle
The blue points on the map indicate observations in Calflora.
Click on the map to view observations within a specific county.


Accepted by: JEPS + PLANTS + POWO
Jepson eFlora section:
monocot
USDA PLANTS group:
Monocot

Occurs in wetlands
wetland-riparian

[Wikipedia] Environmental Impact: This pondweed is considered an invasive species in much of North America. It was introduced to the Great Lakes and inland lakes within that region. The plant thrives in conditions normally less habitable to native plant species. It is also able to survive beneath the surface of frozen waterways and resume its rapid vegetative growth before other water plants can regrow.[9] It competes with native plant life and sometimes displaces it. Curly pondweed may clog waterways, inhibiting aquatic recreation, and is considered a nuisance in some areas.[9] It has also been introduced to South America and New Zealand. (link added by Mary Ann Machi)

Suggested Citation
“Calflora - Taxon Report.” The Calflora Database, a non-profit organization. .

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