Sebaea fourcadei Marais

Slender erect annual herbs, simple or branched near the base, up to 25 cm high. Leaves up to 1 cm long and 1 cm broad, ovate-orbicular or the upper ones ovate, obtuse or subacute, in relatively few pairs, the lower ones dying off soon; internodes long. Inflorescence corymbose, few-to several-flowered; bracts lanceolate to ovate-lanceolate acuminate. Calyx of 5 segments, each 4.75-5 mm long, 1-1.5 mm broad, lanceolate or elliptic-lanceolate, acuminate-mucronate, their sides membranous, opaque, brittle when dry, keeled. Corolla yellow; tube 3-4 mm long; lobes 2.75-3.5 mm long, 1-1.25 mm broad, narrowly elliptic or narrowly ovate-elliptic to oblanceolate, rounded, sometimes slightly cucullate. Filaments 0.25 mm long, inserted in the corolla-sinuses; anthers 0.8-1.25 mm long, each with 3 small, round, shortly stipitate, pale yellow glands. Style and stigma 2.75-3.75 mm long with a stigmatic swelling below or near the middle; stigma capitate, 2-lobed.