Bassia hyssopifolia

Bassia hyssopifolia_fivehook_JM DiTomaso
Photo courtesy Joseph DiTomaso

Synonyms: Echinopsilon hyssopifolius (Pallus) Moq., Kochia hyssopifolia (Pallas) Schrad., Salsola hyssopifolia (Pall.)

Common names: five-hook bassia; five horn bassia; five-horn smotherweed; hyssop-leaved echinopsilon; smotherweed; thorn orache;

Bassia hyssopifolia (fivehook bassia) is an annual herb (family Chenopodiaceae) found throughout California, except in high elevation areas in the northwestern region of the state and Sierra Nevada Mountains. It prefers wetland areas, alkaline habitats and disturbed places such as roadsides and fields. Fivehook bassia is acceptable forage for sheep in small amounts, but the foliage can be toxic in large quantities. The plant produces copious amounts of seed, but small populations can be controlled by mechanically removing plants before seed set. Mowing and grazing are not suitable control methods, as the plants commonly resprout from the base after such treatment.

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

Symposium Presentations

  • Devender, T. R. V., R. S. Frlger, et al. (1997). Exotic plants in the Sonoran desert region, Arizona and Sonora. California Exotic Pest Plant Council Symposium '97. Concord, CA.

Cal-IPC News Articles

  • None for this species.