Did you know?

tisaipale — prickly solanum

Solanum torvum

Another noxious weed, introduced from the West Indies, but now a worldwide pest. Tonga has issued a ban on it and everybody should destroy any growth of it immediately. When you have felt its sharp spines you know why. Easily recognisable when young due to its triple axial symmetry.

For more information see Pacific Island Ecosystems at Risk.

Or look in the Tongan Wikipedia.