waterleaf

[waw-ter-leef, wot-er-]

noun

any of several North American plants of the genus Hydrophyllum, having clusters of bluish or white flowers and leaves often bearing marks resembling water stains.

Origin of waterleaf

First recorded in 1750–60; water + leaf

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

These plants superficially resemble some of the Waterleaf Family, but the four lobes of the ovary are conspicuous.
Field Book of Western Wild Flowers
Margaret Armstrong