An erect much branched, gregarious, evergreen shrub, up to 2 (-2.5) m. Stem ± quadrangular to nearly terete, young shoots greyish-pubescent Leaves with (1-) 1.5-3.5 (-4.5) cm long petioles; lamina elliptic-lanceolate, 10-20 x 3.5-8 cm, glabrous above, pubescent on nerves beneath, basally attenuate, entire, acuinate. Flowers white, c. 3 cm long, nearly sessile, in terminal and axillary spikes, up to 10 cm long, 2.5-3 cm broad; bracts leafy, broadly-elliptic, 1.5-2.5 x (0.8) 1-1.5 (-1.8) cm, pubescent; bracteoles elliptic-oblong to lanceolate, 1-1.5 (-2) x 0.3-0.5 cm, acute, minutely pubescent. Calyx 5-lobed, lobes linear-lanceolate, 6-10 x c. 2 mm, acute, puberulous, imbricate. Corolla pale-white, tube 1.2-1.5 cm long, pubescent outside, throat villous, limb 2-lipped, upper lip erect, shortly bifid, galeate, lower lip with 3 elliptic, obtuse lobes. Stamens 2, filaments 1-1.5 cm long, anthers oblong, basally apiculate. Ovary oblong, c. 3 mm long, style 2-2.5 cm long. Capsule stipitate, broadly clavate, c. 2.5 cm long, 4-seeded, pubescent. Seeds ± orbicular, 2-3 mm across, glabrous.