Syncolostemon pretoriae (Gürke) D.F.Otieno

Bushy herb 0.1-0.3 m tall with few to many erect or ascending stems arising annually from a perennial woody rootstock; stems simple, slender, hispid to villous, sometimes with branched hairs intermingled (subsp. heterotricha). Leaves subsessile to shortly petiolate; blade narrowly elliptic or oblanceolate to ovate, obovate or subrotund, 8-24 x 2-15 mm, subglabrous to villous or tomentose, sometimes with stellate or branched hairs, conspicuously gland-dotted, often folded along the midrib, apex acute to obtuse, base cuneate, margin entire or rarely with a few small teeth in the upper third. Inflorescence simple, 40-80 mm long; verticils (2-)3-6-flowered, borne in the axils of persistent, leaf-like bracts 6-10 x 3-4 mm. Calyx 9-11 mm long in fruit, glandular-hispid. Corolla whitish to pale mauve, 14-16 mm long; tube 10-12 mm long, narrowly tubular, widening slightly to 2 mm at the throat; upper lip narrow, 3 mm long; lower lip 4 mm long. Stamens: upper pair included, attached near the middle of the tube with glabrous filaments; lower pair united for more than half their length, exserted by 2-3 mm. Stigma minutely bifid.