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Corm, bulbo-tuber, or bulbotuber is a short, vertical, swollen underground plant stem that serves as a storage organ that some plants use to survive winter or other adverse conditions such as summer drought and heat (perennation).
It is the most widely cultivated species of several plants in the family Araceae that are used as vegetables for their corms, leaves, stems and petioles. Taro corms are a food staple in African, Oceanic, East Asian, Southeast Asian and South Asian cultures (similar to yams). Taro is believed to be one of the earliest cultivated plants.
Both sexual and asexual means are used to increase the number of plants; seeds and multiplication of corms are the most common means of production, but tissue culture can be used, [114] most commonly for saffron crocus. New corms are formed on top of the older corm which withers away, and cormels are produced from axillary buds. [112]
The typical Xanthosoma plant has a growing cycle of 9 to 11 months, during which time it produces a large stem called a corm, this surrounded by smaller edible cormels about the size of potatoes. These cormels (like the corm) are rich in starch. Their taste has been described as earthy and nutty, and they are a common ingredient in soups and stews.
Crocus corsicus is a cormous perennial growing to 8–10 cm (3.1–3.9 in) tall. The corm is tear-drop shaped with fine-reticulate, fibrous tunics. [3] One or two, pale to bright reddish violet interior colored slender, fragrant, flowers are produced per blooming corm; the outer surfaces of the tepals are buff with dark purple feathering.
Colchicum (/ ˈ k ɒ l tʃ ɪ k əm / KOL-chik-əm or / ˈ k ɒ l k ɪ k əm / KOL-kik-əm) [2] is a genus of perennial flowering plants containing around 160 species which grow from bulb-like corms. It is a member of the botanical family Colchicaceae , and is native to West Asia , Europe , parts of the Mediterranean coast, down the East ...
Eleocharis dulcis, the Chinese water chestnut or water chestnut, is a grass-like sedge native to Asia, tropical Africa, and Oceania.It is grown in many countries for its edible corms, but if eaten uncooked, the surface of the plants may transmit fasciolopsiasis.
The plant reproduces mostly by means of rhizomes (tubers, corms), but it also produces "clusters of two to five fragrant inflorescences in the leaf axils". [7] Like other members of the family, the plant contains an irritant which causes intense discomfort to the lips, mouth and throat.