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Euphorbia marginata Pursh
Snow on the mountain, Snow-on-the-mountain
Synonym(s): Agaloma marginata, Dichrophyllum marginatum, Lepadena marginata
USDA Symbol: EUMA8
USDA Native Status: L48 (N), CAN (I)
Grown as much for its foliage as for its flowers, snow-on-the-mountainís small but showy leaves may be light green, variegated or entirely white. They clasp erect, many-branched stems which grow 1-3 ft. tall. Tiny flowers, each with whitish, petal-like bracts, are borne in clusters atop the stems.
Milky sap may cause dermatitis.
Plant CharacteristicsDuration: Annual Habit: Herb Fruit: Size Class:
Bloom InformationBloom Color: White
Bloom Time: Jul , Aug , Sep , Oct
, WY Native Distribution: MT
e. to s. MN,
& TX; naturalized in waste areas e. to the Atlantic Native Habitat:
Dry slopes; disturbed prairies; roadsides
Growing ConditionsWater Use: Medium
Light Requirement: Part Shade
Soil Moisture: Moist
Soil pH: Circumneutral (pH 6.8-7.2)
Soil Description: Various soils. Clay, Limestone/chalky, Clay Loam, Medium Loam, Sandy Loam, Sandy
BenefitUse Ornamental: Wildflower meadow
Use Wildlife: This plant has no forage value for wildlife and is usually considered poisonous. Mourning doves eat the seeds without being harmed.
Warning: Plant parts (fresh or dried) and extracts made from them can be toxic if ingested to both humans and cattle. Ingestion causes inflammtion or blistering of the mouth, throat, and esophagus. Contact with plant can cause irritation of skin, eyes, and mucous membranes. Sensitivity to a toxin varies with a personís age, weight, physical condition, and individual susceptibility. Children are most vulnerable because of their curiosity and small size. Toxicity can vary in a plant according to season, the plantís different parts, and its stage of growth; and plants can absorb toxic substances, such as herbicides, pesticides, and pollutants from the water, air, and soil.
Conspicuous Flowers: yes
Interesting Foliage: yes
Deer Resistant: High
PropagationPropagation Material: Seeds
Description: Sow seed in fall or spring.
Seed Collection: Not Available
Seed Treatment: Not Available
Commercially Avail: yes
National Wetland Indicator Status
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1
(Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here
for map of regions.
Herbarium Specimen(s)NPSOT 0134
Collected Sept. 17, 1991 in Bexar County by Lottie MillsapsNPSOT 0254
Collected July 27, 1992 in Kendall County by Kristina CoatesNPSOT 0263
Collected Aug. 18, 1992 in Comal County by Mary Beth White
Record Last Modified: 2011-01-06
Research By: NPC