what vegetable grows like a vine and produces purple flowers

Question

I saw a picture of a vegetable growing up a trellis that had beautiful purple flowers and produced a vegetable, but I can’t remember what it was.

Answer 1

Their are pea and bean varieties that have purple flowers and can be grown on a trellis.

https://www.gardeningknowhow.com/edible/vegetables/beans/growing-pole-beans.htm
https://www.gardeningknowhow.com/edible/vegetables/peas/supporting-pea-plants.htm