Perennial herb to 0.5 m tall, spreading or upright, hairy. Leaves opposite, to 4 cm long, 2-3 cm wide, ovate to elliptic, saw-toothed, hairy. Flower clusters axillary, opposite, to about 5 cm long, dense, erect; late spring to early summer. Flowers to about 8 mm wide, purplish blue.

Europe

Source: Spencer, R. (2002). Scrophulariaceae. In: Spencer, R.. 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.