(redirected from Corms)
Also found in: Dictionary, Thesaurus, Medical, Acronyms.


short, thickened underground stem, usually covered with papery leaves. A corm grows vertically, producing buds at the upper nodes and roots from the lower surface. Corms serve as organs of food storage and in some plants (e.g., crocus and gladiolus) of asexual reproduction; they are often mistakenly called bulbs.



an underground shoot of a plant with an exterior that resembles a bulb (it is often called a bulb); however, its structure is similar to that of a tuber. The scaly leaves are dry and membranous. The nutritive reserve is stored in the pulpy stem. Corms are found in several plants, including crocuses, gladioli, and saffrons.


A short, erect, fleshy underground stem, usually broader than high and covered with membranous scales.


Botany an organ of vegetative reproduction in plants such as the crocus, consisting of a globular stem base swollen with food and surrounded by papery scale leaves
References in periodicals archive ?
Place in the sun to cure (dry), then shake off any clinging soil, break off the old corm, and store in paper bag (never plastic) in a frost-free location over winter.
Induction of callus and regeneration of plantlets from corms of Crocus sativus L.
Bulbs, tubers and corms lifted at this time of year should be dried off quickly.
speciosus, the most widely available species for garden cultivation, but less so after the first autumn-winter in which cases oak the corms in paraffin before planting as a deterrent to vermin.
MICE: These will feed on the seeds of germinating sweetcorn, peas and beans and also eat crocus corms and orchard fruits.
The evaluation of time of corms lifting and foliar nutriton on some morphological and chemical yield of saffron(Crocus sativus L.
Glad corms are almost completely winter hardy in our area.
A YOU can grow outdoor freesias from corms planted in April, to flower August to October but I think you get better results growing them in a greenhouse or conservatory.
Bulbs, corms and tubers can be planted in spring right up until the end of May, and can be as spectacular as their spring counterparts, in troughs and tubs, or filling up the front of beds and borders, requiring little maintenance but providing a wealth of colour during the hotter months.
If you plant your corms in succession at two-week intervals you can have flowers all summer long.
Peel the scale-like corms that look as though they're ready to be pulled away.