Urceolate

Urceolate literally means "shaped like an urn or pitcher", with a swollen middle and narrowing top. It is often used in botany to describe a feature of plant morphology. Examples of urceolate plant structures are the pitchers of many species of the pitcher plant genera Sarracenia and Nepenthes.

Etymology

Mid-18th century. From Latin urceolus "little pitcher", urceus "pitcher".