Parentucellia viscosa

Parentucellia viscosa_Yellow glandweed_ JM Di Tomaso
Photo courtesy Joseph DiTomaso

Synonyms: Bartsia viscosa, Bellardia viscosa

Common names: yellow glandweed; sticky parentucellia; broadleaved glandweed

Parentucellia viscosa (yellow glandweed, sticky parentucellia) is an annual forb/herb (family Scrophulariaceae) that invades wetland prairies along the coast and pastures in the Sierra Nevada. It is especially invasive on dune wetlands at the Humboldt Bay National Wildlife Refuge.

Rating: Limited

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

    • USDA PLANTS database -
      Federal database with information on identification and distribution, and links to websites in individual states.
    • Jepson Online Interchange for California Flora - Information on taxonomy, biology, and distribution from the UC Berkeley Jepson Herbarium.
    • CalFlora - Distribution information by county based on submitted observations and herbarium specimens.
    • CalPhotos - Images of plants taken mostly in California.

    Symposium Presentations

    • Pickart, A. J. and K. S. Wear (1999). The ecology of Parentucellia viscosa in dune wetlands. California Exotic Pest Plant Council Symposium '99. Sacramento, CA.

    Cal-IPC News Articles

    • DiTomaso, J. (2006). New weed alerts! Cal-IPC News. 13: 4-5.
    • Pickart, A. (1996). Call for information: Parentucellia viscosa. CalEPPC News. 4: 9.
    • Pickart, A. and K. Wear (2000). Parentucellia viscosa invades dune wetlands of northern California. CalEPPC News. 8: 11.