Herb rarely exceeding 1 m tall. Stem erect or ascending, obscurely quadrangular, shallowly sulcate, at least above, glabrous or sparingly puberulous with curved, subappressed trichomes disposed in 2 rows. Petiole 3-4 mm long, thick and puberulous; blade firm and somewhat coriaceous, elliptic to ovate, 9-13.5 x 3.5-6.5 cm, uppermost pair conspicuously larger 12-13.5 x 5.5-6.5 cm, entire or undulate, short-acuminate to acuminate at apex, obtuse or rounded at base, both surfaces glabrous or nearly so; primary vein and secondary veins (6-8 pairs) prominent. Flowers borne in a short, dense, terminal thyrse, 4-5 x 1.5-2 cm, flowers and bracts ± secund, rachis and peduncles rather densely and bifariously puberulous; peduncle 1.5-4.5 cm long; bracts subtending flowers narrowly triangular, 2.5-3 x 1 mm, carinate, apically mucronulate, firm, sparingly hirtellous and ciliate; bracteoles narrrowly triangular, 2-3 x 1 mm, carinate, apically mucronulate, firm, glabrous or sparingly hirtellous and ciliate. Flowers sessile to subsessile; calyx 6-7 mm long, deeply 5-lobed, lobes equal, lanceolate, 5.5 x 1.75 mm, acuminate with curved tip, primary vein prominent, margin ciliate; corolla color not indicated but probably purple or red, 18-20 mm long, basally glabrous, apically finely pilose, tube 7 mm long, 3 mm wide at base, 7 mm wide at throat, upper lip erect, oblong-elliptic, 10 x 7 mm, plicate, dorsally pilose, minutely glandular-puberulous on upper surface, rounded and emarginate, lower lip ovate, spreading, 14 x 11 mm, transversely fluted, saccate, lobes ovate, rounded, 3 mm long, middle lobe 5 mm wide, lateral lobes 3 mm wide; stamens exserted 8 mm beyond mouth of corolla tube, anther thecae slightly superposed, connective 0.8 mm wide, upper theca 0.75 x 0.5 mm, muticous or minutely subapiculate basally, lower theca 0.5 x 0.25 mm, tipped by white apiculus ca. 0.5 mm long; style ca. 15 mm long, glabrous, stigma minutely 2-lobed. Capsule unknown.
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