Shrubs; stems subquadrangular (the angles rounded and separated by 4 narrow light brown grooves), pilose, the hairs brown, spreading or ascending, up to 4 mm. long; leaf blades ovate, up to 10 cm. long and 5 cm. wide, short-acuminate, the tip blunt, narrowed at base, rather thin, entire or undulate, the upper surface sparingly pilose, the hairs brown, appressed or ascending, up to 2.25 mm. long, the lower surface more densely pilose with similar hairs, the costa and lateral veins (6 to 8 pairs) barely conspicuous, the cystoliths obscure above, more prominent beneath; petioles up to 2 cm. long, densely pilose with long hairs; spikes numerous and crowded, terminal and in the axils of the upper leaf blades, 6 to 8 cm. long, 13 to 14 mm. broad, the bracts closely imbricate, secund, the rachis slender, hirtellous, the hairs curved, about 0.5 mm. long; bracts suborbicular, about 8 mm. in diameter, apiculate, the apicula about 1 mm. long, abruptly narrowed to a small cuneate base, 1.5 to 2 mm. long, thin, glabrous or the upper surface bearing a few brown hairs up to 2 mm. long, the margins densely ciliate with spreading nitid brown hairs up to 3 mm. long and about 10-jointed; bractlets linear-subulate, 3 to 10 mm. long, ciliate toward tip with spreading brown hairs up to 2 mm. long; calyx 5 mm. long, the segments lance-subulate, thin, glabrous or bearing 1 to several hairs at or near tip, these up to 1 mm. long, the costa delicate; corolla blue, 13 mm. long, moderately pubescent except at base, the hairs about 0.2 mm. long, the tube 2 mm. broad at base, narrowed to 1.5 mm. at middle, the throat 3 mm. broad, lips subequal, 5 mm. long, the upper lip ovate, 3.5 mm. wide at base, narrowed to a rounded emarginate tip, the lower lip broadly cuneate, 7 mm. wide near tip, 3-lobed, the lobes suborbicular, rounded, the middle lobe 3.25 mm. wide, the lateral lobes 2.25 mm. wide; stamens attached near throat, the filaments 4 mm. long, flattened, membranous, terminating a slender vascular strand, the anther cells superposed, the upper about 0.25 mm. above the lower, or the cells contiguous, the upper cell 0.75 mm. long, the lower 1 mm. long, the base tipped by a blunt white tail 0.5 mm. long; capsule clavate, about 6 mm. long, 2 mm. broad and 1.5 mm. thick, 4-seeded, glabrous; retinacula 1 mm. long, thin and narrowly cucullate at tip; mature seed not seen. Type in the U. S. National Herbarium, No. 1517999, collected in forest in the vicinity of Umbría, Comisaría of Putumayo, Colombia, 325 meters altitude, October to November 1930, by G. Klug (No. 1724). The specific epithet is from the greek words, ráprodus very many, and σráxus, spike.