a tall branched undershrub, 2–3 ft. high (Schlechter), 9 ft. high (Nelson); branches obtusely quadrangular, puberulous; leaves 3 1/2–7 in. long, 2 1/2–6 in. broad, broadly ovate, acuminate, with irregularly crenate-dentate margins, more or less puberulous, truncate or subcordate at the base; petioles 1–1 1/2 in. long, subtomentose with rufous hairs; inflorescence a branched panicle consisting of several long lax racemes, terminal one sometimes reaching 10 in. long; verticils about 6-flowered, not pedunculate; bracts 1–1 1/2 lin. long, ovate, cuspidately acuminate; pedicels 2 lin. long, filiform; fruiting calyx 3 1/2 lin. long, curved, glabrous; flowering calyx 2 lin. long, campanulate, pubescent; upper tooth 3/4 lin. long, broadly ovate, acute; 4 other teeth lanceolate, 2 lower twice as long as the lateral ones; corolla purple (Schlechter); tube 2 1/2 lin. long, not deflexed, gibbously enlarged above the base on the upper, straight on the lower side; upper lip 2 1/2 lin. long, 2-lobed at the apex by a triangular notch; lower lip 2 lin. long; stamens much exserted; nutlets 3/4 lin. long, 1/2 lin. broad, globosely ovoid, dark brown (almost black), smooth. null
