Stem stout, much branched at the base, glabrous, obscurely angled in the thinner branches. Leaves linear-lanceolate, sessile, scabrid on both surfaces, acute or subacute above, rounded below, upwards of 1 in. long, 1 1/2 lin. broad. Flowers solitary or 2 together in small cymes arising singly from the nodes. Calyx-teeth linear, scabrid; the upper 5 lin. long, 1/2 lin. broad, the others 4 lin. long. Corolla-tube 4–5 lin. long, somewhat pubescent outside; upper lip 3 lin., lower 4 lin. long, with 2 yellow marks on the palate. Stamens nearly equal; filaments of the lower pair sparingly hairy. Ovary pubescent. Capsule somewhat pubescent, 4–5 lin. long, containing 35–40 seeds.
Distribution
Amboland Lower Guinea Olukonda, common on moist land and in grass by water, Schinz, 7! 8! 18!
