This introduced perennial plant has sprawling leafy stems up to 10" long and 6" high. The fleshy stems are light green to pale purple, glabrous or glaucous, and terete (round in cross-section). The fleshy leaves are arranged in whorls of 3 at intervals along the stem. Each fleshy leaf is up to 1" long and ¼" across, elliptic to narrowly lanceolate in shape, smooth along the margins, bright green and glabrous on the upper surface, flat, and sessile. The upper stems produce one-sided corymbs of flowers; each horizontal branch of the corymb produces several upright flowers. Each flower is about ½" across, consisting of 5 yellow petals, 5 fleshy green sepals, 10 stamens, and a cluster of 5 pistils. The petals are longer than the sepals; they are both narrowly lanceolate to lanceolate. The blooming period occurs from late spring into the summer and lasts about a month. Each flower is replaced by 5 clustered follicles; each follicle is pointed at the apex and contains several seeds. The root system is fleshy and fibrous. This plant spreads by reseeding itself and by forming vegetative offsets.