erect, much branched, 2 ft. high or more, rigidly herbaceous above, puberulous; branches obtusely quadrangular, purplish; branchlets opposite or the upper alternate, erect-patent or ascending, rather slender; internodes mostly 1–1 1/2 in. long; leaves opposite or the uppermost alternate, elliptical, obtusely pointed or subacute, somewhat narrowed at the sessile base, submembranous, minutely glandular-puberulous, dentate, 1/3–1 1/2 in. long, 1/8– 5/6 in. broad; flowers numerous, thyrsoid-racemose, about 1/5– 1/4 in. long; racemes terminal, many-flowered, comparatively dense, oblong, somewhat compound, 1–6 in. long, 3/4–1 1/2 in. broad; ultimate pedicels short; bracts narrow; calyx 1/7– 1/6 in. long, deeply 5-lobed, glandular-puberulous; segments linear-subulate, acute; corolla-tube 1/6– 1/5 in. long, narrowly cylindrical-funnel-shaped, nearly straight, minutely landular-puberulous outside; limb patent, 1/6– 1/5 in. in diam.; lobes oblong or subrotund, unequal, 1/15– 1/12 in. long; stamens included or one pair appearing at the mouth of the corolla-tube; capsule ovoid-oval, obsoletely glandular, 1/10 in. long, obtuse. null