a graceful herb, glabrous or very nearly so, glossy, glaucescent; stem 2 ft. high or more, obtusely tetragonous, loosely branched above, slender; branches very slender; internodes mostly exceeding the leaves; leaves opposite, broadly ovate or cordate, acutely pointed or obtuse at the apex, reniform-cordate about the shortly narrowed 5–7-nerved base, membranous, shortly dentate, 3/4–2 1/2 in. long, 1/3–2 in. broad, sometimes smaller; petioles 1/12– 1/6 in. long, narrowly decurrent; racemes terminal and axillary, very slender, sinuous, many-flowered, 1 1/2–11 in. long; bracts ovate, acuminate, sessile, cordate, spreading, 1/12– 1/6 in. long; pedicels very slender, often curved, 1/8–1 1/4 in. long, alternate; calyx-segments ovate or ovate-oblong, 1/10 in. long, trinerved, pale green, whitish on the minutely glandular margin, subacute; corolla about 3/5 in. broad; spurs 2, diverging, obtusely conical, about 1/5– 1/4 in. long; filaments 4, linear-filiform, glabrous, about 1/16 in. long, all bearing anthers; capsules subglobose, glabrous, about 1/10 in. in diam. null
