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New South Wales Department of Primary Industries subsite home
Home »  Agriculture  »  Pest and weeds management  »  Weeds  »  Species information

Weeds

Weed profile: California burr

California burr

California burr

California burr

Xanthium orientale

California burr is toxic to most livestock at the seedling stage while the cotyledon (first two) leaves are still present. It can cause contact allergy, dermatitis and mechanical injury both to humans and animals. It can also be a major source of vegetable fault in wool, thereby reducing its value. Mature plants are not toxic. California burr is closely related to Noogoora burr.

Status

  • Declared in NSW under the Noxious Weeds Act 1993 (view details)

Related publications

Title
Noogoora burr, Californian burr, Italian cockleburr and South American burr (Primefact 727)  
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