Tetragonia tetragonioides

Tetragonia_tetragonioides_By Ixitixel
Photo courtesy of Ixitixel (eigene Arbeit, selbst fotografiert) CC-BY-SA-3.0 via Wikimedia Commons

Synonyms: Tetragonia tetragonoides, Demidovia tetragonoides Pall. (basionym), Tetragonia expansa Murray

Common names: New Zealand spinach; warrigal greens

Tetragonia tetragonioides (New Zealand spinach) is a species (family Aizoaceae) found throughout California on sand dunes, bluffs, and the margins of coastal wetlands.

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

    • None for this species

    Cal-IPC News Articles

    • Brusati, E. (2011). Cal-IPC Inventory update adds eight plants. Cal-IPC News. 19: 18.
    • Harris, G. (1998). Invasive New Zealand weeds: Our native plant invaders. CalEPPC News. 6: 8-9
    • Albert, M. E. (1995). Portrait of an invader II: The ecology and management of Carpobrotus edulis. CalEPPC News. 3: 4-6.