Definition
A 'triquetrous leek' refers to a leek plant that has a distinct triangular shape in its cross-section. Think of it like a regular leek, but instead of being perfectly round, it's got three noticeable sides. These leeks are still edible and used in cooking, just like the more common round ones. It's like finding a uniquely shaped pasta—still pasta, just different. The triangular shape doesn't affect the flavor much.