Erect herb to about 1 m tall. Lower leaves not or hardly lobed, upper leaves more deeply cut. Flowers in branched or simple clusters, pink to purple on individual stalks 3-8 mm long; summer. Carpels pitted.
S. oregana (Torr. & A. Gray) A. Gray is occasionally offered; it differs in having distinctly spike like flower clusters with the flowers on stalks 1-3(5) mm long and carpels more or less smooth.
Source: (1997). Hibiscus. In: . Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.