Where does a 'Geraldton carnation weed' come from?

Answer 1

The scientific name of the Geraldton carnation weed (aka false caper, spurge and terracina spurge) is Euphorbia terracina. It is a shrub-like herb which invasively blocks out native species. It is a "Declared Plant" (Agriculture and Related Resources Protection Act) and a "Pest Plant" (Local Government Act); therefore, landowners who want to the plant are obligated to control them at their own expense with the Shire Council enforcing the control of the plant.

The plant is a Mediterrean native that naturalized in Western Australia and now is found along most coastal regions with high calcium carbonate levels.