The most dominant feature of the Western Volcanic Plains were the extensive wildflower grasslands, such as Kangaroo Grass, poa tussocks, Wallaby Grasses and Spear Grass. These grasslands were found on spongy soils. Soft footed marsupials, such as bandicoots constantly turned over the soil and spread the soil organisms around, creating this soil. Today, the soil has been compressed by hard hooved animals, such as cattle which were introduced by Europeans.