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Report an Invasive Species

Cypress spurge

Cypress spurge

Cypress spurge

(Euphorbia cyparissias)

Priority: -  Contain

Tags: Terrestrial

Identification and Reproduction

Identification

  • Perennial.
  • Small, linear leaves in whorl pattern. 
  • Yellow flowers grow in bunches.
  • Yellow-green bracts under flowers. 
  • Flowers turn purple-red when mature.
  • Less than one foot tall.
  • Plants have a milky sap.

 

Reproduction

  • Reproduces vegetatively through lateral root shoots or seeds.

Habitat & Ecology

  • Sun or partial shade.
  • Produces thick stands.
  • Mostly in dry areas.

Impacts

  • Invades pastures and disturbed sites.
  • May be toxic to animals.

Management

  • Mowing (before seeding).
  • Herbicide at early bud.
  • May need to do repeat herbicide applications.
  • Biocontrol may be available.

Resources

http://peiinvasives.ca/cypress-spurge-euphorbia-cyparissias

http://nwipc.org/plants/cypress-spurge

http://www.omafra.gov.on.ca/english/crops/facts/info_spurge.htm

https://www.fs.fed.us/database/feis/plants/forb/eupcyp/all.html

https://www.maine.gov/dacf/php/gotpests/weeds/cypress-spurge.htm

https://commons.wikimedia.org/wiki/File:Cypress_Spurge_(Euphorbia_cyparissias)_(8342679308).jpg