Oldenlandia angolensis K.Schum.

Short-lived perennial (or? sometimes annual) herb 15–60 cm. tall; stems erect or suberect, mostly sparsely branched, slender, glabrous (save at the nodes) or rarely hairy.. Leaf-blades narrowly elliptic to linear-lanceolate, (0.3–)1–2 cm. long, 1–4.5 mm. wide, subacute at the apex, cuneate at the base, rather rigid and held erect, mostly drying a distinct yellowish green and with surface finely reticulate, glabrous but margins very slightly scabridulous or rarely hairy all over; petiole obsolete or very short; stipule-sheath ± 1 mm. long, usually with a few hairs, rarely densely hairy, produced into a 2-fid lobe 1.5–3 mm. long.. Inflorescences dense, subcapitate, 5–15-flowered, 5–8 mm. in diameter, terminal and also in leaf-axil below the terminal head and also sometimes on axillary side branches from terminal and lower nodes, usually sessile but peduncles up to 5 cm. long; pedicels 0.5–1.5(–3) mm. long.. Flowers not dimorphic, equal-styled.. Calyx-tube subglobose, 1 mm. long, glabrous to sparsely or rarely spreading hairy; lobes deltoid, ± 1–1.2 mm. long, glabrescent or with rather long white marginal hairs or rarely more densely covered with spreading hairs.. Corolla white to dull mauve; tube 0.5 mm. long; lobes ovate-lanceolate, 1–1.3 mm. long.. Capsule purple, subglobose, 1.5 mm. long, 2 mm. wide; beak slightly raised, 0.5 mm. long, glabrescent to spreading hairy.. Seeds black, angular, 0.4–0.5 mm. long.