Anisosepalum

Herbaceous to suffrutescent, erect to procumbent. Leaves opposite, sometimes ternate, entire to crenate-serrate, variably pilose, lower surface often paler than upper. Inflorescences : flowers usually many, in spike-like racemes or spikes, terminal or on very short lateral branches, sometimes only 2 or 3; bracts and bracteoles present. Calyx of 5 very dissimilar sepals shortly fused at base; posterior ones much shorter than anterior ones; lateral ones much reduced, +/-hyaline. Corolla 2-lipped, funnel-shaped; upper lip +/-cucullate and entire to faintly bilobed. Androecium : stamens 4, didynamous, included; anther thecae ellipsoid, diverging, often slightly mucronate at base; staminode 1 or absent. Disc usually distinct. Gynoecium : ovary glabrous; ovules 4-8(9) per locule, in two rows; style sparsely papillate; stigma bilobed, anterior lobe shorter than bilobed posterior lobe. Capsule woody, ovate-triangular in outline, +/-compressed. Seeds subglobose, with rugose testa. Species 3, central Africa; sthn trop. Afr. 2, ?Angola, Zambia.