[snoh-on-th
uh-moun-tn, -awn-] 
| a spurge, Euphorbia marginata, of the western U.S., having leaves with white margins and white petallike bracts. |
| ghost·weed (gōst'wēd') n. See snow-on-the-mountain. |
| snow-on-the-moun·tain (snō'ŏn-thə-moun'tən, -ôn-) n. A widely cultivated plant (Euphorbia marginata) of the central United States, having white-margined leaves and showy white bracts. Also called ghostweed. |