Perennial over 1 m tall. Leaves alternate, ovate to oblong or elliptic, 5-15 cm long. Flowers numerous in terminal spike-like clusters, pink to purplish or white.
Has shown a potential for weediness in disturbed sites.
N America, Eurasia.
Source: (2002). Onagraceae. 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.