Scrambling or twining deciduous to evergreen shrub. Leaves to about 20 cm long,10 cm wide, opposite, decussate, oblong to elliptic, the tip pointed, leathery, slightly sticky. Flower clusters cylindrical, drooping, to 30 cm or so long. Calyx lilac, with the lobes longer than the tube. Corolla lobes bright indigo.
C America, Lesser Antilles
Source: (2002). Verbenaceae. 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.