Synonyms: Acacia cyanophylla, Acacia bracteata, Acacia lindleyi, Mimosa saligna, Racosperma salignum
Common names: orange wattle
Acacia saligna (golden wreath wattle, orange wattle) is a shrubby tree in the pea family (Fabaceae) that is native to Australia. It is grown as an ornamental and has become naturalized in coastal and southern California as well as in other Mediterranean climates in South Africa, parts of southern Europe, and where it is not native in southeastern Australia. Orange wattle has long (7-21 cm), thin leaves (each with a prominant midvein) that differentiate it from other Acacia species. Flowers are arranged in racemes consisting of 2-8 heads each. Seed pods are narrow, straight, and not hairy. Plants can reproduce vegetatively and produce copious amounts of seed. Its dense canopy can shade out other plants. Wildfire favors its spread by promoting regrowth and germination.
Cal-IPC Rating: Watch
CDFA Rating: None?
Plant Risk Assessment
Plant Risk Assessment- An evaluation of the potential for a plant to be invasive in California.
Weed Management NotesNo Weed RIC Management Notes are available for this species. Check for information on other species in the genus on the Weed RIC site.
Cal-IPC Newsletter Articles
- Planting right with PlantRight in 2020. Burger, Jutta. Vol 28, Issue 1
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.
- How soil microbes drive and respond to plant invasions in Mediterranean ecosystems: Insights from Australian acacias. Le Roux, Johannes (2021)
- The role of soil bacterial mutualisms in legume invasion in California. Klock, Metha; Harms, Kyle; Thrall, Peter; Barrett, Luke (2020)
Other Acacia saligna Information
- 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.
- GBIF - Global distribution information.
- 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.
- The Plant List - Global taxonomic resource and collaborative clearinghouse from Kew Gardens, the Royal Botanic Gardens, the Missouri Botanic Garden and others.