A perennial undershrub, subherbaceous, about 3 in. high or more; rootstock somewhat woody, branched; stems trailing or ascending, radiating from the crown of the root, somewhat wiry, pubescent; flowering branches erect-patent or erect; branchlets rather slender, firm, leafy, obtusely tetragonous or subterete; leaves opposite, subopposite or scattered, narrowly elliptical or oblong, obtuse or subacute, not much narrowed at the sessile base, more or less scabrid-puberulous, entire or sub-entire, 1/3-1 in. long, 1/20-1/3 in. broad, rather thick and rigid, somewhat dusky-green when dried, feebly 3-nerved at the base; midrib prominent beneath; margins narrowly revolute, scabrid; flowers in the upper axils numerous, subsessile, rather crowded, 3/4-1 in. long, pink with a lighter shade within, Gloxinia-like; bracteoles 2, sub-linear, spreading or suberect, 1/8-1/3 in. long, inserted at the base of the calyx; calyx 3/8-1/2 in. long in flower, rather longer in fruit, campanulate, deeply 5-cleft, 10-nerved, scabrid-puberulous; lobes triangular-lanceolate, acute, about 1/4 in. long; corolla-tube funnel-shaped, subventricose, more or less pubescent outside with pallid hairs; limb spreading, 3/4-1 in. in diam.; lobes broadly rounded, 1/5-1/4 in. long in flower, rather longer in fruit; filaments bearded; style slender, exceeding the stamens, glabrous; stigma small, subglobose, bifid; ovary gibbous, glabrous; fruit ovoid-oblong, glabrous, compressed, 1/5 in. long, 1/12 in. broad below, included with the calyx.
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Small subherbaceous plant with several branches from short, woody base. Branches trailing. Leaves oblong-ovate. Filaments bearded with patent hairs almost to apex. Flowers pink or mauve.