Cypress Spurge

cypress spurge

Cypress Spurge


Euphorbia cyarissias

Link to Information Sheet 


Colorado List A - Eradication required in Jefferson County


General

  • Has been sold as an ornamental
  • Introduced from Europe
  • Spurge family (Euphorbiaceae)


Common names

  • Graveyard-Moss
  • Quack-Salver's-Spurge
  • Squib-Knocket
  • Welcome-To-Our-Home


Habitat

  • Can be found in pastures, graveyards and along roadways
  • Dry, sandy soil
  • Herbaceous
  • Perennial


Plant


Vegetation

  • Leaves are narrow and linear, approximately 1/2 to 1 1/4 inches long and 1/8 inch wide
  • Mature plants are 4 to 32 inches tall
  • Plant has a milky sap that irritates the skin
  • Stems are smooth with green to yellowish-green foliage


Roots

  • Deep vertical roots
  • Horizontal roots produce colonies


Flower

  • Season: March to July
  • Turn bright orange-red in early summer
  • Yellow-green bracts surround the inconspicuous flowers


Seed

  • Seed thrown up to 15 feet from exploding capsule


Seedling

  • Seedling leaves similar in shape to mature leaves, except smaller
  • Upper surface covered with white powdery granules


Reproduction

  • Seed
  • Lateral root buds


Control


Biological

  • None


Chemical


Cultural

  • Intensive tilling combined with herbicide treatment
  • Prevention - maintain health of site


Mechanical

  • Burning - N/A
  • Grazing - N/A
  • Mowing - N/A


More Information


Use all chemicals according to the manufacturer's label. No specific recommendation or endorsement is made or implied by listing methods or products.