internodes giving the appearance of a raceme 5-35 cm long; peduncles lacking; pedicels to 2.5 cm long, reddish or brown, hirsute. Flowers with floral tube turbinate, 2-3 cm long, densely hirsute; calyx lobes erect, equal, thick triangular ovate to oblong, 2-5 mm long, green, red or brown, hirsute on both sides, the apex acute or obtuse; corolla deep red to orange red outside, the inside paler with red spots, red villous outside, the inside glandular, tubular, 1.2-1.8(-2.0) cm long, 4-5 mm wide at the slightly oblique base, ampliate or ventricose, 5-7 mm wide at the middle, then slightly contracted at the throat, the mouth oblique, the limb bilabiate of 5 lobes to 1 cm across, the lateral and the upper lobes spreading, the basal lobe reflexed, all nearly equal, obtuse or rounded, 2-4 mm long and wide, glabrous to pilose glandular, entire; stamens 4, not exserted, the filaments broad at the base and adnate to the base of the corolla tube, narrowed above, yellow, glabrous, the anthers oblong, ca. 2 mm long, pilose on back, staminode much reduced; glands 5, usually free or the 2 posterior glands more or less united; ovary apex conic, hirsute, the style curved, ca. 1 cm long, glandular pilose, the stigma bibbed. Fruit a globose capsule surrounded by the persistent floral tube, 5-7 mm in diam., red to brown, villous; seeds numerous, fusiform, ca. 0.5 mm long, reddish brown. Chromosomes 2n = 26 (Rogers, 1954).
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Terrestrial coarse herbs or rarely suffruticose; rhizomes scaly, pink, pubes-cent; stems simple, erect, stout, terete, to 1.5 m tall, to 7 mm in diam., green to usually reddish, villous hirsute with spreading red or brown many-celled hairs, unbranched or branched only from the base. Leaves opposite or ternate, those at a node usually similar in size, petiolate, membranous, narrowly elliptic to lanceolate, 7-15(-28) cm long, 2.9-5.5 cm wide, the base cuneate to obtuse, crenate serrate, sometimes minutely so, rarely reddish, the apex acute to acuminate, the upper surface dark green, hirsute, becoming scabrous with age, the lower surface lighter green, rarely reddish, tomentose, lateral veins 5-9; petioles sulcate, 1.3-2.5(-4.5) cm long, reddish, villous. Inflorescences in fasci-cles of 1-5 flowers in axils of the leaves, the leaves reduced above on short