Zucchini vs. Courgette — What's the Difference?

The zucchini ( (listen); plural: zucchini or zucchinis), courgette (; plural: courgettes) or baby marrow (Cucurbita pepo) is a summer squash, a vining herbaceous plant whose fruit are harvested when their immature seeds and epicarp (rind) are still soft and edible. It is closely related, but not identical, to the marrow; its fruit may be called marrow when mature.

A zucchini.

A variety of summer squash (Cucurbita pepo) having an elongated shape and a smooth, thin, dark green rind.

A particular variety of Cucurbita pepo, a small marrow/squash.

A courgette; a variety of squash, Cucurbita pepo, which bears edible fruit.

The edible fruit of this marrow/squash.

The edible fruit of this variety of squash.

A marrow squash plant whose fruit are eaten when small; - called also zucchini.

Marrow squash plant whose fruit are eaten when small

A small cucumber-shaped vegetable marrow; typically dark green; - called also zucchini.

Small cucumber-shaped vegetable marrow; typically dark green

Marrow squash plant whose fruit are eaten when small

Small cucumber-shaped vegetable marrow; typically dark green