Posted 29 April 2022
Caltrop (Pest Plant)
Caltrop (Pest Plant)
What you should know about caltrop
Caltrop (Tribulus terrestris) is a summer-growing weed found widely throughout Western Australia. It is most
common in areas of frequent spring and after summer rain.
Under the Local Government Act 1995 it is a prescribed pest plant in a number of shires in the Perth
metropolitan area, the southwest and the wheatbelt.
However, it is not a declared plant, and there is no requirement to report it to the Department of Agriculture
and Food, Western Australia.