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These propagate corm-forming plants. A number of species replace corms every year by growing a new corm. This process starts after the shoot develops fully expanded leaves. The new corm forms at the shoot base just above the old corm. As the new corm grows, short stolons appear that end with the newly growing small cormels. As the plants grow ...
Corms are solid enlarged underground stems that store nutrients in their fleshy and solid stem tissue and are surrounded by papery leaves. Corms differ from bulbs in that their centers consists of solid tissue while bulbs consist of layered leaves. [24] Examples of plants that use corms are gladiolus and taro.
A geophyte (earth+plant) is a plant with an underground storage organ including true bulbs, corms, tubers, tuberous roots, enlarged hypocotyls, and rhizomes. Most plants with underground stems are geophytes but not all plants that are geophytes have underground stems. Geophytes are often physiologically active even when they lack leaves.
The corm produces lateral buds that give rise to side-corms (cormels, suckers) or stolons (long runners, creeping rhizomes) depending on the species and variety. Cocoyams commonly reach in excess of one metre (three feet) in height and although they are perennials, they are often grown as annuals, harvested after one season.
Chinese water chestnut is usually not very prone to pests; [8] nevertheless, some animals and fungi may attack the plant: Water fowl may damage the stems and corms, especially when plants are young. [7] Similarly, rodents and grazing animals pose a threat to the Chinese water chestnut, which may be discouraged by keeping the paddy inundated. [7]
Iridaceae (/ ɪ r ɪ ˈ d eɪ s i ˌ aɪ,-s iː ˌ iː /) is a family of plants in order Asparagales, taking its name from the irises.It has a nearly global distribution, with 69 accepted genera with a total of c. 2500 species.
The plant uses the rhizome to store starches, proteins, and other nutrients. These nutrients become useful for the plant when new shoots must be formed or when the plant dies back for the winter. [4] If a rhizome is separated, each piece may be able to give rise to a new plant.
As an example of an intermediate, the tuber of Cyclamen arises from the stem of the seedling, which forms the junction of the roots and stem of the mature plant. In some species (e.g. Cyclamen coum ) roots come from the bottom of the tuber, suggesting that it is a stem tuber; in others (e.g. Cyclamen hederifolium ) roots come largely from the ...
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