They are being invaded by exotic weeds, and their fate hangs in the balance.

It is a troublesome exotic weed in Australia, especially in northern regions.

Invasive plants and exotic weeds of Southeast Alaska.

After thinning, the forest needs prescription burning and then should be monitored for invasion of exotic weeds.

It has become widespread in Eastern Australia, usually living in association with exotic weeds.

It has few exotic weeds or introduced animals.

They have cleared land for vegetable patches and introduced exotic weeds, and, that bane of island wildlife, goats.

The air hung thick with the smoke of exotic weeds and the stench of stale ale.

Sighing, Claire took a sample and patted the creatures, who were soon munching exotic weeds again, contentedly.

A management plan was established to attempt regenerate the native flora and to control exotic weeds.