Snow-on-the-mountain
Euphorbia marginata Pursh
Images
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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