Potamogeton crispus

Photo courtesy Joseph DiTomaso

Common names: curly-leaved pondweed; curled pondweed; curly pondweed

Potamogeton crispus (curlyleaf pondweed) is an aquatic perennial (family Potamogetonaceae). The genus Potamogeton contains many widespread, variable species that are difficult to tell apart. Potamogeton species are important for wildlife, but they can become problems in managed aquatic systems such as irrigation canals. All species of Potamogeton are native to California except P. crispus. There is no evidence that curlyleaf pondweed hybridizes with native Potamogeton species, particularly since it primarily reproduces vegetatively.

Rating: Moderate

Cal-IPC Resources

  • Plant Assessment Form - Information gathered by Cal-IPC on the impacts, rate of spread, and distribution of invasive plants in California. Does not include management information.
  • CalWeedMapper - Statewide maps, climate models, and reports.
  • Cal-IPC News - Our quarterly newsletter. Each issue is available as a pdf.
  • Cal-IPC Symposium Proceedings - Presentations and papers from our annual Symposium.
  • Don't Plant a Pest! - Select your region to find non-invasive alternatives to ornamental species. Also see our statewide brochure on trees.

    Other Resources

    Symposium Presentations

    • None for this species.

    Cal-IPC News Articles

    • None for this species.