Shrub to 1 m or more tall. Leaves 7-15 cm long, ovate-elliptic, purplish or pink and usually blotched. Flowers short-stalked, in a dense terminal spike, white or pink and sometimes spotted, about 2.5 cm wide, with 5 spreading lobes.
Source: (2002). Acanthaceae. In: . Horticultural Flora of South-eastern Australia. Volume 4. Flowering plants. Dicotyledons. Part 3. The identification of garden and cultivated plants. University of New South Wales Press. (as Pseuderanthemum atropurpureum)