Suberect herb, 30-40 cm, often branched below. Stem and branches glabrous, rooting in the lower part. Leaves membranaceous, oblong-lanceolate or elliptic, 3-10 by 1.5-4 cm, acute or caudate, base cuneate, entire; margin elsewhere crenate-serrate or subentire; glabrous on both surfaces, nerves hirsute or puberulent; petiole 1-2.5 cm, slender. Flowers 1-3 in cymules disposed in short thyrses; thyrses terminal or in the upper leaf axils, 2-4 cm long and 0; rachis puberulent, 3-5-branched. Bracts ovate, 8-10 mm long, acute, caducous. Calyx turbinate, 3.5-4 mm long, in fruit 5-6 mm, glandular and hirsute; upper tooth rounded, 5-nerved (3 main nerves and 2 additional lateral ones); lateral teeth deltoid, pointed; lower teeth lanceolate, pointed, connate below, longer than the rest. Corolla pale violet or violet, 10-18 mm long, tube decurved, limb 2-lipped. Stamens in 2 pairs. Nutlets (? immature, ELMER 13614) oblong-cylindric, 1.4 mm long.
Home