pumpkin vine

2.1

A climbing plant that grows large round orange pumpkins

noun
/ˈpʌmpkɪn vaɪn/

: planta de calabaza

With all the space consumed by pumpkin vines, it would be nice to harvest four or five sizable jack-o'-lanterns from a single plant.

And I saw their plant section and I saw a pumpkin vine this long coming out of a three inch pot.

Examples

In the spring, whenever I'm tending to my garden, I check on my pumpkin vines to ensure they are healthy.
And I saw their plant section and I saw a pumpkin vine this long coming out of a three inch pot.

MIgardener
We still have some spent sort of pumpkin vines out there and squash vines.
By October, Sara Blanket's pumpkin vines had stretched out their silver leaves, and the orange fruits were visible.

Fiction book (1990)
By October, Sara Blanket's pumpkin vine had stretched out its silver leaves, and the orange fruits were visible.

Synonyms

squash vine

vspumpkin vine

3.5

A plant that grows along the ground and produces pumpkins or similar edible fruits

is the vigorous trailing plant that bears large round orange fruits with many seeds

gourd vine

vspumpkin vine

6.8

A climbing plant that makes fruits with hard skins like bottle gourds

is more specific and names the vigorous plant making large round orange fruits

Surface Forms

pumpkin vine singular

pumpkin vines plural

Morphology

pumpkin + vine

The meaning — a vine that produces pumpkins — is directly and compositionally derived from 'pumpkin' (the fruit) + 'vine' (a trailing/climbing plant). This simple noun–noun compound follows common, cross-linguistic compositional patterns and would be readily understood by a B1 learner who knows both constituent words.

Etymology

Pumpkin vine names the long, climbing vine that grows the round orange pumpkin fruits. Think of big pumpkins sitting along a trailing green stem—so the phrase simply means 'a plant that produces pumpkins'.