BugwoodWiki Article

cypress spurge
Euphorbia cyparissias L.

Overview

Appearance
Euphorbia cyparissias grows up to 12 in. (30.5 cm) tall. This herbaceous, perennial plant invades open disturbed areas throughout the United States. All parts of the plant exude a white, milky sap when broken.
Foliage
The leaves are small, up to 1 in. (2.5 cm) long. The leaves are numerous, alternate or whorled, bright green, and linear in shape.
Flowers
Yellow-green, inconspicuous flowers are in a cyme at the top of the plant. Flowers mature to red.
Fruit
The fruit is three lobed and contains 1-3 egg shaped smooth gray seeds that measure 0.06-0.08 in. (1.5-2 mm). Euphorbia cyparissias produces large clonal colonies through an extensive underground root system, that allows this plant to reproduce with lateral root buds.
Ecological Threat
Euphorbia cyparissias can invade open disturbed areas such as fields, pastures, agricultural land, roadsides, and yards. It is toxic to livestock so infestations reduce the forage value of pastures and contaminates hayfields. It can form huge infestations displacing native vegetation. This plant is native to Europe and western Asia. It was first introduced into the United States in the mid 1800s as an ornamental.

Resources

Image Sets
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Maps


EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

EDDMapS Distribution

State Invasive List - This map identifies those states that list this species on their invasive species list. For more information, visit Invasive.org

State Invasives List

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Rosidae
Order: Euphorbiales
Family: Euphorbiaceae
Genus: Euphorbia

Other System Links

Plants: EUCY2
Bayer: EPHCY
GRIN: 316678
ITIS: 28061
NPDN Pest: PBVAGBD
NPDN Host: 31529

Synonyms and Other Names

Related Scientific Names:

Galarhoeus cyparissias L.(Synonym)
Tithymalus cyparissias L.(Synonym)

Categories

Category: Forbs/Herbs