Plectranthus djalonensis (A. Chev.) A. J. Paton

Annual or perennial herb. Stems up to 60 cm, erect or decumbent. Leaves: petiole up to 20 mm; lamina 30-50 × 15-25 mm, ovate to ovate-oblong, subglabrous; base obtuse, shortly decurrent on petiole; apex acute to obtuse; margin shallowly crenate. Inflorescences 25-70 mm, racemose or sparingly branched, borne on long peduncles, slender, terminal or axillary along almost the entire length of the stem. Calyx 3 mm at fruiting stage, pilose; teeth 1 mm, triangular. Corolla 5 mm, mottled blue and white.

Widespread in tropical Africa