Gerardiina angolensis Engl.

A rigid herb, bright green, erect or ascending, strict, somewhat shining, perennial; stoloniferous; stem obtusely quadrangular, sulcate, puberulous in the furrows, about 27 in. high, leafy, smooth, reddish; leaves opposite, narrowly elliptical or lanceolate, obtuse or scarcely acute, somewhat narrowed towards the broad more or less connate and decurrent sessile 3-norved base, scabrous above with rough hard whitish points and often along the nerves beneath, comparatively smooth beneath, erect or suberect, rigid, 1/2-3 1/2 in. long, 1/8-1/3 in. broad, entire; flowers numerous, about 3/4-1 in. long; racemes terminal, 4 1/2-6 in. long or more; pedicels in. long, glabrous mostly opposite, bracteate at the base, ebracteolate; bracts opposite, roundly oval, connate at the base, glabrous, in. long; calyx glabrous or minutely puberulous, coriaceous, campanulate-hemispherical, shortly 5-cleft, 1/6-1/4 in. long; teeth deltoid, about 1/12 in. long; corolla tubular, minutely puberulous outside; tube about 1/2-5/8 in. long, 1/5-3/8 in. broad at the middle, 1/6-1/3 in. broad at the throat, 1/8 in. broad at the base; lobes 5, rounded, about 1/4-1.3 in. long, two of them shortly connate; filaments pilose, one pair rather long, the other pair short; anthers 2-celled; cells distinct, gently curved, nearly glabrous, 1/12-1/8 in. long; style about equalling or exceeding the longer pair of filaments, about 1/4-1/3 in. long; stigma not much thickened; capsule ovoid, 1/5-1/4 in. long.