perennial, 1/2–1 ft. high; stems several branching from a woody rootstock, simple or with erect branches, square, puberulous with minute recurved hairs along the angles only; leaves spreading; petiole 1–3 lin. long; blade 1/2–1 1/3 in. long, 3–7 lin. broad, ovate or lanceolate, acute or obtuse, broadly or narrowly cuneate at the base, subentire to acutely serrate, minutely puberulous on the veins beneath, otherwise glabrous on both sides; racemes simple, 1 1/4–5 in. long; whorls 1/4– 1/2 in. apart, 6-flowered; bracts reflexed, 3/4–1 1/2 lin. long, ovate, acute or apiculate, subpetiolate or sessile, glabrous, ciliate, often bordered with purple; pedicels 1–2 lin. long, pubescent; calyx pubescent or subtomentose outside, glabrous within, purplish-brown; tube 1/8– 1/6 (in fruit 1/5– 1/4) in. long, tubular-campanulate, with distinct nerves, especially in fruit; upper tooth 1/2– 3/4 lin. long, orbicular-ovate, obtuse; lateral and lower teeth bristle-like, the lower 2/3–1 (in fruit up to 1 3/4) lin. long; corolla-tube 2–3 lin. long, slightly exceeding the lower calyx-teeth, straight, puberulous outside; upper lip 1 1/4–2 lin. long, with 4 small rounded lobes; lower lip 1 1/2–2 lin. long, boat-shaped, obtuse; stamens all free, curved, glabrous; upper pair 1 lin. long, inserted in the throat of the tube and just exserted from it or included; lower pair 1 1/4 lin. long, inserted at the base of the lower lip and shorter than it; style very minutely bifid or emarginate at the clavate apex; nutlets 3/4 lin. long, ellipsoid, obtuse, very minutely and faintly tuberculate, brown. null