Term Information

Accession
PO:0025355
Name
corm
Ontology
plant_anatomy
Synonyms
cormo (Spanish, exact), 球茎 (Japanese, exact), cormel (narrow), cormlet (narrow), pseudobulb (narrow), diaspore (broad)
Alternate IDs
None
Definition
A shoot system (PO:0009006) that has as parts a short, enlarged stem (PO:0009047) in which the shoot internodes (PO:0005005) do not elongate, and one or more buds (PO:0000055). Source: ISBN:9780881928501
Comment
May serve as a storage or perennating organ. Usually underground. A corm differs from a bulb (PO:0025356) in that it does not have fleshy leaves or leaf bases but usually has scale leaves or remnants of dry leaf sheaths that form a protective covering around it. May bear remnants or scars of detached leaves. Adventitious roots may develop from the base of a corm, and these may be contractile, pulling the corm into the soil. Examples include Gladiolus and Crocus. The pseudobulb of an orchid is equivalent to a corm. A corm is very similar to a rhizome (PO:0004542) with very short sympodial units, although not all corms have sympodial growth.
Subset
None
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Parents of corm (PO:0025355)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
corm [is_a relation] is_a  shoot system (PO:0009006)

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PO_GIT
173