Introduced perennial forb to 60cm tall or prostrate. Leaves opposite each other, 1-4cm long, 15-25mm wide, flat, sparsely hairy to hairy, margins lobed and toothed. Flowers mauve, tubular, with five lobes, in spikes at the tops of the stems.
Description and photo in G.M. Cunningham, WE Mulham, PL Milthorpe and J H Leigh (1981 and later printings) Plants of Western New South Wales page 570
PlantNET description: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Verbena~supina