a slender herb; stems obtusely quadrangular, puberulous; leaves 1–1 1/2 in. long, 1 in. broad, ovate, acute, glabrous or nearly so, with regularly serrate margins, truncate or shortly cuneate at the base; petioles 1/4– 3/4 in. long, puberulous; inflorescence a simple terminal raceme 2 1/2–4 1/2 in. long; verticils 4–6-flowered, 3–5 lin. apart, not pedunculate; bracts 1 1/2–2 lin. long, obovate, acuminate; pedicels 1 1/2 lin. long; flowering calyx 2 lin. long, campanulate, pubescent; upper tooth 1/2 lin. long, broadly ovate, subacute; lateral teeth 1/2 lin. long, deltoid, acute; 2 lower teeth twice as long as the lateral, lanceolate, acute; corolla-tube nearly 3 lin. long, narrow cylindric basal portion 1/2– 3/4 lin. long, tube nearly straight and subcylindric above, saccate above the narrow part; upper lip 2 lin. long, 1 1/2 lin. broad, obovate, rounded at the apex, with 2 lateral rounded lobes near the base; stamens exserted; nutlets not seen. null