an annual herb, erect or ascending, viscid-pubescent, 3–14 in. high; stem simple, angular, rather slender; leaves scale-like, few, opposite, ovate or lanceolate, obtuse, not much narrowed at the sessile base, entire, 1/8– 1/3 in. long, 1/24– 1/12 in. broad; flowers usually about 1 1/2–2 in. long; racemes lax, 6–1-flowered, on the shorter specimens occupying nearly the whole length of the plant; pedicels alternate or opposite, rather slender-viscid-pubescent, 1/3–2 in. long, divaricate or suberect; bibracteolate above the middle; bracteoles linear, 1/5– 1/2 in. long, glandular-pubescent; calyx campanulate, viscid-pubescent, unequally 5-cleft, 3/4–1 1/4 in. long; tube 3-nerved; lobes linear-lanceolate, 1/3– 4/5 in. long; corolla puberulous or nearly glabrous outside, lilac and yellow or rosy, membranous; tube funnel-shaped, ample, gradually widened upwards, more or less curved, usually 1 1/3–1 1/2 in. long; limb more or less spreading, 1 1/2–2 in. in diam.; lobes broadly ovate, rounded, crenulate-wavy, 1/2– 3/4 in. long; throat about 1/2 in. in diam.; filaments not pubescent, somewhat glandular; anthers all perfect; style equalling the corolla-tube or shortly exserted, glabrous, curved towards the apex; stigma capitate, subglobose. null
