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Snow-on-the-mountain

Euphorbia marginata Pursh

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Snow-on-the-mountain
Snow-on-the-mountian
Snow-on-the-mountain
Snow-on-the-mountain
Snow-on-the-mountian
Snow-on-the-mountain fruit
Snow-on-the-mountain habit
Snow-on-the-mountain
Snow-on-the-mountain
Snow-on-the-mountain
Snow-on-the-mountain fruit
Snow-on-the-mountain flowers and fruit
Snow-on-the-mountain fruit

Morphology

Stem
Erect, stout, single, usually unbranched below inflorescences, nearly glabrous or spreading-hairy, contains milky sap.
Leaves
Alternate, simple, sessile, oblong to ovate or elliptic, 1.5 to 4 inches long, .5 to 1.25 inch wide, glabrous or somewhat hairy; margins entire; tips pointed; upper leaves reduced.
Inflorescence
Umbel-like clusters of small cup-shaped receptacles, terminal; bracts large, leaf-like, in crowded whorls below inflorescences; margins broad, white.
Flower
Receptacles with 3-5 white petal-like appendages around lip, greenish glands at base of each appendage, containing 1 pistillate flower and 35-60 tiny staminate flowers; petals and sepals absent.
Fruit
Capsules, 3-lobed, hairy; seeds 3, egg-shaped, bumpy, dark gray.

Ecology

Habitat
Prairies, roadsides, stream bottoms, and waste areas, most abundant in limestone soils.
Distribution
Throughout Kansas.

Practical Information

Toxicity
When damaged, snow-on-the-mountain exudes a milky sap that can cause skin irritation similar to that seen with poison ivy. Cattle normally will not graze snow-on-the-mountain due to its bitter taste, but can become debilitated and even die after eating hay containing it.

Additional Notes

Comments

A stand of this plant can make the ground appear as if it is covered with snow. Snow-on-the-mountain is related to the poinsettia (Euphorbia pulcherrima Willd.).

Quick Facts
Plant Type
Wildflower
Family
Euphorbiaceae - Spurge Family
Life Span
Annual
Height
12-40 inches
Last Updated
2007-10-04
Color Groups
White, Green & Greenish White Wildflowers
Flowering Period
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Blooms: June, July, August, September, October