Myrtle spurge (Euphorbia myrsinites) is an invasive plant. It was first detected in Washington in 2003.
Frequently sold as a rock garden plant, this plant is rapidly expanding into sensitive ecosystems. Myrtle spurge is classified as a noxious weed in the U.S. state of Oregon, subject to quarantine. The milky sap can cause significant skin and eye irritations. .For more information about this plant pest, see the CABI data sheet.