These plants are perennial herbs with corms or rhizomes. Caladiums are tubers, not corms or bulbs. Cockatoos prefer to eat seeds, tubers, corms, fruit, flowers and insects. Other storage organs may be tubers or corms, swollen axes. It is a group of herbaceous perennials with rhizomes or corms. These underground organs, such as bulbs, corms and tubers, are often fleshy with water-storing tissues. They are mostly perennial plants, with food storage organs such as corms or rhizomes. Damaraland mole-rats are herbivorous, feeding solely on tubers, corms, and bulbs. Zebra sometimes browse or dig for corms and rhizomes during the dry season. Examples of plants that use corms are gladiolus and taro. They can be evergreen or deciduous perennials that grow from basal underground corms. It was originally described to have caused rot of gladiolus corms. The order also contains many geophytes (bulbs, corms, and various kinds of tuber). They are perennials, surviving the winter in the form of corms. Plants with corms generally can be propagated by cutting the corms into sections and replanting.