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Flaigg, Norman G.
Euphorbia corollata L.
Synonym(s): Euphorbia corollata var. angustifolia, Euphorbia marilandica, Tithymalopsis corollata, Tithymalopsis marilandica, Tithymalopsis olivacea
USDA Symbol: euco10
USDA Native Status: L48 (N), CAN (N)
One or more bright green stems grow erect to 3 ft. A whorl of smooth, bright green leaves surrounds the stem at the point where 3-7 flowering stalks branch off. Minute flowers surrounded by 5 white, round, petal-like bracts attached to rim of a cup, all in a few- to much-branched, open cluster atop each stem; sap milky. Each flowering stalk branches again above another whorl of smaller leaves. Flowering stalks are topped by small, white flowers in a large, loose, long-lasting, flat-topped clusters.
The often colored, petal-like bracts are typical of some spurges, as are the stems with milky juice; the flower-like cup-structure (cyathium) is a distinguishing feature of spurges. The common name spurge comes from the Latin expurgare (to purge). Snow-on-the-mountain (E. marginata), native to the Midwest, has upper leaves with white edges.
Plant CharacteristicsDuration: Perennial Habit: Herb Flower:
Fruit: Size Class:
Bloom InformationBloom Color: White
Bloom Time: Jun , Jul , Aug , Sep , Oct
, WV Canada: ON Native Distribution: NY
to s.e. MN
& s.e. SD,
s. to FL, TX,
& e. KS Native Habitat:
Rocky prairies; open woodlands; fields; roadsides; waste places
Growing ConditionsLight Requirement:
Sun Soil Moisture:
Dry Drought Tolerance:
High Soil Description:
Dry to mesic soils. Conditions Comments:
The milky juice in the stem
can cause blisters on sensitive skin.
Flowering Spurge has been used as a laxative, but large doses can be poisonous. Members of this genus
are known to fatally poison cattle. Contact with plant, especially its milky sap,
can cause irritation of skin, eyes, and mucous membranes. POISONOUS PARTS: All parts. Minor skin irritatation if touched, low toxicity if ingested. Symptoms include nausea, vomiting, diarrhea when ingested. Redness, swelling, blisters after some delay following contact with skin. Toxic Principle: Diterpene esters in milky latex. (Poisonous Plants of N.C.) Conspicuous Flowers:
PropagationPropagation Material: Clump Division , Root Cuttings , Seeds
Description: Best propagated by seed sown unstratified in fall or stratified in spring. Easy to divide in spring or fall or to propagate by root cuttings.
Seed Collection: Collect in early Sep. before the seedhead explodes.
Seed Treatment: Moist stratification
Commercially Avail: yes
Record Last Modified: 2012-12-07
Research By: TWC Staff