erect; stem obtusely quadrangular, grooved, pubescent; leaves up to 3 1/2 in. long, 3 in. broad, deltoid-ovate, acute or acuminate, coarsely and somewhat irregularly crenate, sparsely pubescent above and on the nerves beneath; petioles of lower leaves reaching 2 1/4 in. long, those of the upper leaves shorter, more or less pubescent; inflorescence in long racemes reaching 10 in. long, simple or forming a panicle branched at the base, the rhachis scaberulous with short gland-tipped hairs; verticils 6–12-flowered, often nearly 1 in. apart, not or scarcely pedunculate; bracts 1–1 1/2 lin. long, glandular-pubescent; fruiting calyx 3 lin. long, curved, nearly glabrous, often purple-coloured; upper tooth nearly 1 1/4 lin. long, ovate, acuminate, erect; other 4 teeth subulate from a deltoid base, the lower teeth the longest; flowering calyx 1 1/4 lin. long, coloured, tube pubescent; narrow basal portion of the corolla-tube 3/4 lin. long, about 1/2 lin. broad, sharply deflexed; upper portion of tube above the narrow part enlarged, almost cylindric, 2 1/2 lin. long, 1 lin. broad, saccate at the base; upper lip 1 1/2 lin. long; lower lip 2 lin. long, nearly 1 lin. deep, boat-shaped, acute; stamens exserted; nutlets 3/4 lin. in diam., subglobose, compressed, smooth, dark yellow. null