Bassia hyssopifolia

Bassia hyssopifolia_fivehook_JM DiTomaso
Photo: 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.

Cal-IPC Rating: Limited?

CDFA Rating: None?


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.

Weed Management Notes

  • Management Notes - Information on management techniques and effectiveness from the University of California Cooperative Extension’s Weed Research & Information Center.

Cal-IPC Newsletter Articles

There are no newsletter articles associated with this species yet.

Cal-IPC Symposium Presentations

Presentations are linked where available. Where a presentation is not available, find more information by reading the abstract in the Cal-IPC Symposia Archive.

Other Bassia hyssopifolia Information

  • Bugwood - National database from the Center for Invasive Species and Ecosystem Health at the University of Georgia.
  • CalPhotos - Images of plants taken mostly in California.
  • Calflora - Distribution map and records of this species in California.
  • CalWeedMapper - Distribution map of this species in California with ability to determine regional priorities.
  • EDDMapS - Distribution of this species in North America.
  • Jepson Interchange - Information on this plant's taxonomy, biology, and distribution from UC Berkeley's Jepson Herbarium.
  • USDA PLANTS Database - Information on identification and distribution, with links to websites in individual states.
  • Additional photos

    Bassia hyssopifolia_flowers_copyright_2019_NealKramer
    Bassia hyssopifolia (five-hook Bassia) flowers. Photo: &#169 2019 Neal Kramer
    Bassia hyssopifolia_fruits_copyright_2019_NealKramer
    Bassia hyssopifolia (five-hook Bassia) fruits. Photo: &#169 2019 Neal Kramer
    Bassia hyssopifolia_growth habit_copyright_2019_NealKramer
    Bassia hyssopifolia (five-hook Bassia) growth habit. Photo: &#169 2019 Neal Kramer
    Bassia hyssopifolia_leaves and stem_copyright_2019_NealKramer
    Bassia hyssopifolia (five-hook Bassia) leaves and stem. Photo: &#169 2019 Neal Kramer
    Bassia hyssopifolia_seedling__copyright_2013_NealKramer
    Bassia hyssopifolia (five-hook Bassia) seedling. Photo: &#169 2013 Neal Kramer