Willhelm's vine is a fast-growing botanical pest. Its fruits are poisonous, the bush is thorny and it engages on parasitic behaviours on nearby plants. Fortunately, it seems most creatures in Oceanyka will occasionally truce up to destroy the vine wherever it appears. Unfortunately, the destruction of many natural habitats for human colonisation has meant that humans now have to dedicate a significant workforce to protecting agriculture and their settlements from this outback menace. In the past, large slave forces were used. Nowadays, flamethrowers are preferred.