a much-branched herb; stems obtusely or obscurely 4-angled, pubescent with short recurved hairs, usually bearded with long hairs at the nodes; leaves spreading, thinly pubescent to glabrous; petiole 2–4 lin. long; blade 1/2–2 1/4 in. long, 1/5– 7/8 in. broad, flat, lanceolate or ovate-lanceolate, about equally acute at each end, entire or obscurely toothed; racemes numerous, 4–8 in. long, of many equidistant 6-flowered whorls; bracts 1 1/2–2 lin. long, ovate, acute, persistent or deciduous; pedicels 1 1/2 lin. long, pubescent; calyx deflexed, 1 3/4–2 (in fruit 2 1/2) lin. long, campanulate, 5-toothed to about the middle, pilose outside and inside and ciliate with long white hairs; upper tooth orbicular, slightly apiculate, with a tuft of long white hairs at its base; lateral teeth broad at the base, mucronate, much shorter than the subulate lower teeth; corolla more or less pubescent outside; tube 1 1/4–1 1/2 lin. long; upper lip about 1 1/4 lin. long, shortly and subequally 4-lobed; lobes rounded; lower lip 1 1/4 lin. long, oblong-obovate, obtuse, concave; stamens much exserted; upper pair inserted near the base of the corolla-tube, 3 1/2 lin. long, with a rather long linear hairy tooth at the knee; lower pair inserted at the base of the lower lip, 2 1/2 lin. long; nutlets 3/4 lin. long, oblong, slightly shouldered at the base, glabrous, black. null
