Perennial shrub to 2 m high, usually single-stemmed from rootstock, each stem branched many times; deciduous. Leaves 8-10-whorled, not clustered in rosette on flowering stems; blade elliptic to obovate, 15-90 mm long, 3-40 mm wide, upper surface dark green, lower surface pale green-grey; tip pointed, with a short sharp point; base wedge-shaped to rounded; petiole filiform, 20-50 mm long. Floral HEADs forked several times, each with 3 white rays. Cyathia 1.5-2 mm wide, lobes lanceolate, entire; glands 4, elliptic to kidney-shaped, yellow.
A pink-rayed cultivar is available.
C America.
Source: (2002). Euphorbiaceae. In: . Horticultural Flora of South-eastern Australia. Volume 3. Flowering plants. Dicotyledons. Part 2. The identification of garden and cultivated plants. University of New South Wales Press.