an erect herb, leafless, 6–12 in. high; stem simple, obtusely angular, puberulous with jointed hairs, minutely glandular; leaves scale-like, opposite, oblong, puberulous, distant; raceme closely 3–8-flowered; flowers handsome, opposite or the uppermost alternate; bracteoles patent or suberect, somewhat shaggy; pedicels about equalling the calyx, somewhat shaggy, erect; calyx subturbinate, somewhat shaggy-hispid, 3/5– 3/4 in. long; segments lanceolate-triangular, obtuse, as long as the tube or longer, 3/8– 1/2 in. long; corolla 1 2/5–1 3/5 in. long, membranous; tube ample, puberulous on the back, otherwise nearly glabrous; mouth broad, throat ventricosely campanulate, 4/5 in. long, a little compressed laterally; lobes patent, rounded, very obtuse, sparingly puberulous outside or nearly glabrous, usually thinly ciliolate along the margin, nearly entire or obscurely subcrenulate, about 3/5 in. in diam.; stamens inserted on the tube of the corolla above its base, shorter ones fertile; filaments subulate-filiform, unifariously puberulous in front, the shorter 1/2 in. long, the longer 2/3 in. long; anthers glabrous, falcate, apiculate, spurred at the base, the sterile scarcely 1/8 in. long, the fertile cohering at the apex and 1/4 in. long; ovary ovoid, quite glabrous; style filiform, glabrous, incurved at the apex, about 1 2/5 in. long; lips of the stigma oblong or oval, obtuse, 1/12 in. long. null
