Euphorbia myrsinites, the myrtlespurge, blue spurge, or broad-leaved glaucous-spurge, is a succulent species of flowering plant in the spurge family Euphorbiaceae. Myrtlespurge is a perennial, herbaceous plant. Mature plants are 4 to 6 inches tall and spread up to 18 inches wide. Leaves, stems, and roots all exude a milky, caustic sap when broken. Spurge look like? MyrtleSpurge is an herbaceous plant with fleshy, waxy, grayish-green leaves that spiral around spreading upright stems.How do I remove and controlMyrtleSpurge? Myrtlespurge is invasive and keeping control of myrtlespurge is important. It is made more difficult by the fact that myrtlespurge plants can grow from seeds or from bits of root. The following links will lead you to some herbicide information for myrtlespurge. USU Extension does not endorse any herbicide brand over another. Myrtlespurge is identified by its yellow-green blossoms and blue-green leaves, according to Salt Lake County Weed Control’s website. The flowers appear from April to June. Roundup will controlMyrtlespurge, but repeated applications will be necessary till the seed bank is depleted. Hand pulling is also an effective method, though extreme caution should be... Myrtlespurge is a succulent perennial that belongs to the spurge family (Euphorbiaceae).Cooperate with adjacent landowners and encourage them to controlmyrtlespurge. What herbicide kills spurge?Why is Myrtlespurge bad?How do you controlspurge? myrtlespurge weed control With a little elbow grease and determination, myrtlespurge can be removed manually.