noun
annual spurge of western United States having showy white-bracted flower clusters and very poisonous milk
• Syn: ↑snow-on-the-mountain, ↑snow-in-summer, ↑ghost weed
• Hypernyms: ↑spurge
• Member Holonyms: ↑Euphorbia, ↑genus Euphorbia
Useful english dictionary. 2012.