A shrub to 2 m tall; stems quadrangular in the young portions, glabrous. Leaves elliptic to slightly ovate, to 22 cm long and 8.5 cm wide, apically acumi-nate, basally attenuate, glabrous above, glabrous to puberulous along the midrib and the costa beneath, cystoliths numerous and visible on both the surfaces, the margins entire to slightly crenate, the petioles varying from subsessile to 4 cm long, glabrous. Inflorescences in terminal and axillary thyrses to 27 cm long; rachis puberulous to sericeous, the bracts one per flower, small, subulate, to 3 mm long, 1 mm wide at the base, puberulous, the bractlets 2, subulate, slightly smaller than the bracts; pedicels borne singly and in fascicles of 2 or 3, puberu-bous, to 3 mm long. Flowers with the calyx 5-merous, the lobes equal, linear, to 5 mm long, 0.5 mm wide at the base, puberulous; corolla bright red, funnelform, ascending, slightly curved to one side, to 4 cm long, to 9 mm wide at the mouth, 2 mm wide at the base, glabrous, bilabiate, the upper lip linear to 8 mm long, 4 mm wide at the base, apically rounded, ciliolate, the lower lip with 3 small acute lobes at the tip, the lobes about equal, 1 mm long, the lower lip, when open forming an oblique angle from the upper lip; stamens exserted, the filaments to 4.5 cm long, glabrous, the anther cell to 3 mm long, the base rounded. Capsules (Leonard 1938) to 17 mm long; glabrous, seeds roughened.
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