Snow on the mountain
Euphorbia marginata

This is a single-stemmed plant that typically grows to 1-3' tall. It is usually unbranched below the inflorescence. Leaves (1-3" long) are medium green in spring, with the upper leaves gradually developing showy clean white margins. Compound cymes of inconspicuous greenish-yellow true flowers bloom at the stem ends from mid-summer to early fall. Although the true flowers (borne in cyathia) lack sepals or petals and are not showy, these flowers are subtended by long-lasting, petal-like white bracts (modified leaves) that are showy. Flower bracts and variegated upper leaves provide the ornamental show. Plant sap is a milky juice that is toxic if ingested.