Corms

Definition

Corms are short, vertical, swollen underground plant stems that serve as storage organs to help plants survive adverse conditions. They store nutrients and energy to support new growth.

5 Must Know Facts For Your Next Test

1. Corms are structurally different from bulbs; they are solid tissue rather than layered.
2. Common examples of plants with corms include crocuses, gladioli, and taro.
3. Corms can produce new plants through vegetative reproduction by forming cormels or daughter corms.
4. They often have a papery tunic covering that protects the corm from damage.
5. During the growing season, the old corm shrivels as it transfers its stored nutrients to the developing plant.

Related terms

Bulbs: Underground storage organs composed of layered fleshy scales surrounding a central bud.

Rhizomes: Horizontal underground stems that grow laterally and can produce new shoots and roots.

Tubers:

Enlarged structures in some plant species used as storage organs for nutrients, such as potatoes.