snow-on-the-mountain

[ snoh-on-thuh-moun-tn, -awn- ]
/ ˈsnoʊ ɒn ðəˈmaʊn tn, -ɔn- /

noun

a spurge, Euphorbia marginata, of the western U.S., having leaves with white margins and white petallike bracts.
Also called ghost-weed.

Origin of snow-on-the-mountain

An Americanism dating back to 1875–80

British Dictionary definitions for snow-on-the-mountain

snow-on-the-mountain

noun

a North American euphorbiaceous plant, Euphorbia marginata, having white-edged leaves and showy white bracts surrounding small flowers