cypress spurge

Euphorbiales > Euphorbiaceae > Euphorbia cyparissias L.

Cypress spurge is a short (up to 12 in. [30.5 cm] tall) herbaceous, perennial plant that invades open disturbed areas throughout the United States. Leaves are small (up to 1 in. [2.5 cm] long), numerous, alternate or whorled, bright green, and linear in shape. Yellow-green, inconspicuous flowers are in a cyme at the top of the plant. Flowers mature to red. All parts of the plant exude a white, milky sap when broken. Cypress spurge produces an extensive underground root system, allowing this plant to reproduce with lateral root buds. It can invade open disturbed areas such as fields, pastures, agricultural land, roadsides, and yards. Cypress spurge reduces the forage value of pastures, contaminates hayfields, and can displace native vegetation. Cypress spurge is native to Europe and western Asia. It was first introduced into the United States in the mid 1800s as an ornamental.


Identification, Biology, Control and Management Resources

  • Weeds of the Week - USDA Forest Service, Northeastern Area, Forest Health Protection

Selected Images from Invasive.org

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Plant(s);
Steve Dewey, Utah State University, Bugwood.org
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Plant(s); in flower
Todd Pfeiffer, Klamath County Weed Control, Bugwood.org
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Fruit(s); close up of fruiting structure
Richard A. Casagrande, University of Rhode Island, Bugwood.org
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Plant(s); in flower
Todd Pfeiffer, Klamath County Weed Control, Bugwood.org
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Field;
Todd Pfeiffer, Klamath County Weed Control, Bugwood.org
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Diagram or Graphic; Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 2: 474.
USDA PLANTS Database, USDA NRCS PLANTS Database, Bugwood.org
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Invasive Reference(s):

Check Invasive.org for most current lists.
  • Colorado - Noxious Weed Law
  • Connecticut - Noxious Weed Law
  • Massachusetts - Noxious Weed Law
  • Rhode Island - Noxious Weed Law
  • Mid-Atlantic - EPPC List
  • Invasive Plants of the Upper Midwest
  • Invasive Plant Atlas of New England


External Links


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USDA Forest Service Bugwood University of Georgia