Wolfweed

Wolfweeds are a curious form of non-sapient, bush-sized, oval-shaped, mobile vegetation which moves around by rolling and are even capable of leaping short distances. They are native to the jungle world of Chloris and are usually seen in groups. They appear to be predatory and are able to produce a web-like substance to immobilize their prey. The native Chlorisians are known to domesticate them and use them for hunting. Despite their animal-like behavior, they are known to produce chlorophyll and thus almost certainly obtain part of their food by photosynthesis.

Appearances

 * Doctor Who season 17 - Creature from the Pit (1979)