Verbena ×brasiliensis
Vell.Herb usually 50–150 cm high, much-branched from base; branches erect, quadrangular, puberulous or almost glabrous. Leaves sessile, elliptic-lanceolate or somewhat spathulate, 4–10 cm long and 1.5–3 cm wide, finely scabrous-strigillose with closely appressed hairs above, strigillose mainly on veins below, apex obtuse to acute, base cuneate, semi-amplexicaul, margin serrate-dentate; upper leaves entire or sparsely toothed, smaller than lower leaves, narrowly lanceolate, base attenuate or cuneate, apex acute. Inflorescence a lax terminal panicle with long branches ending in a spike. Bracts equal or longer than calyx, glabrous adaxially, pubescent-puberulous abaxially with spreading hairs, becoming glabrescent with age. Calyx 5-toothed, 1.5–2 mm long, finely strigillose-pilose outside, glabrous inside; corolla bluish-purple, mauve or lilac, longer than calyx, tube 2–2.5(–3) mm long. Mericarps c. 1.5 mm long. Flowers throughout the year.
VVP, GipP, Gold. Also naturalised Qld, NSW. Native to South America. A weed of disturbed sites, grassland, fringes of forests and near watercourses that has been recorded in Victoria on the Loddon River near Maryborough.
A putative hybrid between Verbena litoralis and Verbena quadrangularis.