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[snoh-on-th uh-moun-tn, -awn-] /ˈsnoʊ ɒn ðəˈmaʊn tn, -ɔn-/
a spurge, Euphorbia marginata, of the western U.S., having leaves with white margins and white petallike bracts.
Also called ghost-weed.
1875-80, Americanism Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for snow-on-the-mountain


a North American euphorbiaceous plant, Euphorbia marginata, having white-edged leaves and showy white bracts surrounding small flowers
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for snow-on-the-mountain

(Euphorbia marginata), succulent plant of the spurge family (Euphorbiaceae), native to the central plains of the United States. The plants, which grow to a height of 60 cm (2 feet), have long, oval, light green foliage, with white-margined leaves near the top, where several white whorls of bracts (leaflike structures) are clustered. The plant has long been a favourite as a garden annual and in flower arrangements, but some people are allergic to its white latex sap.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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