The zucchini (plural: zucchini or zucchinis), courgette (/k??r???t/; plural: courgettes) or baby marrow (Cucurbita pepo) is a summer squash, a herbaceous vine 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.