an undershrub, branched from the base; rootstock perennial; stems annual, numerous, 4–12 in. high; branches procumbent or ascending, elongated, wiry, terete, subherbaceous above, densely viscid-pubescent, leafy; leaves opposite or the upper alternate, often rather distant, broadly ovate, subrotund or ovate-oblong, obtuse or rounded, subtruncate, subcordate or abruptly narrowed at the base, crenate or incise-crenate, minutely glandular-tomentose on both faces, dusky green when dry, 1/4– 4/5 in. long, 1/5– 2/3 in. broad; hairs many-celled; petioles 1/25– 1/8 in. long; flowers axillary and subterminal, rather few, deep scarlet or dull crimson, yellow at the throat; pedicels viscid-puberulous or subglabrous, slender, 3/8– 4/5 in. long; calyx greenish, densely glandular-pilose, deeply 5-lobed; segments oblong-spathulate, concave or more or less plicate and recurved and rounded, gradually narrowed to the base, unequal, 1/8– 1/4 in. long, 1/16– 1/12 in. broad; corolla-tube funnel-shaped, somewhat recurved above the base, slightly dilated at the apex, glandular or nearly glabrous outside, about 1/8 in. long or rather more; limb spreading, somewhat bilabiate, 5-cleft, about 1/2 in. by 1/3 in.; anterior lip trifid, 1/3 in. long; posterior lip bifid, 1/8 in. long; lobes oval-oblong or rotund, nearly entire, glabrous, 1/8– 1/4 in. long; throat round, setose and papillose, about 1/12 in. in diam.; stamens included, erect, glabrous; anthers small, round; filaments straight, inserted about the base of the corolla-tube, firm, rather slender; style glabrous, straight, firm, filiform, about 1/10 in. long; stigma small, capitate; ovary small, ovoid, minutely glandular-papillose; ovules oblong; capsule glandular-papillose, 1/10 in. long or at length equalling the somewhat dilated calyx. null