a branched herb, glabrous or very nearly so, 1 1/2 ft. high or more, perhaps annual; branches rather slender, tetragonous, the lower ascending, the upper divaricate; leaves opposite, broadly ovate, obtuse and mucronulate or the upper shortly acute at the apex, subcordate or subtruncate at the base, dentate, rather thickly membranous, slenderly 5-nerved at the base, delicately veined, 1/3–1 in. long and broad; upper internodes longer than the leaves, middle ones shorter; petioles 1/12– 1/4 in. long, narrowly decurrent; racemes very slender, terminating the branches and subterminal in the upper axils, few- or many-flowered, simple or somewhat divided, 1–4 in. long; pedicels slender, short or some of them elongated; bracts ovate, smaller than the leaves; calyx-segments ovate, obtuse, 1/12 in. long; corolla nearly 1/2 in. broad; spurs 2, widely diverging, about 1/6 in. long; filaments glabrous; capsule ovoid, 1/6 in. long. null
