This is series of posts on interesting and unusual words and phrases.
The first set of words are adjectives that describe a shape and are often used in botany, mineralogy, and describing artistic forms.
The word for today is cordate: heart-shaped; from the Latin, cordis, cordatus.
The leaf of the common blue violet:

https://apps.extension.umn.edu/garden/diagnose/weed/broadleaf/basal/blueviolet.html
A pitcher with a cordate handle:

