an annual herb, erect or ascending, glabrous or somewhat hairy, 6–18 in. high; stem tetragonous, hairy, purplish, branched from the base or simple; branches decussate, tetragonous, glabrous, simple or divided, erect-diffuse, long; branchlets like the branches; leaves opposite and alternate, ovate, lanceolate or oblanceolate, obtuse at the apex, obtuse or attenuate at the base, pinnatifid or pinnatipartite, 1/2–1 1/2 in. long, 1/6– 2/3 in. broad; lobes or segments alternate, linear or oblong, obtuse, entire or nearly so or again pinnatipartite; petioles glabrous, shorter than the leaves, channelled above, convex beneath; flowers racemose, alternate, pedunculate; peduncles tetragonous, somewhat hairy, erect, drooping, 1-flowered, 1/2– 3/4 in. long, bracteate at the base, fasciculate-racemose towards the ends of the branches; bracts linear, obtuse, glabrous, patent, shorter than the peduncle; calyx green, somewhat hairy; segments lanceolate or linear, obtuse, spreading, or the two posterior reflexed, many times shorter than the corolla, 1/12– 1/6 in. long; corolla crimson, 1/2 in. broad; upper lip violet at the lower part, nectariferous pouch at the base lengthened out into two yellowish horns somewhat shorter than the calyx; lower lip very small in proportion to the upper; filaments 4, glabrous, the two upper longer and larger than the others, clavate at the base, filiform above, arched-inflexed; anthers inflexed, green at the base, yellow at the middle, hairy and blue at the apex; style long, persistent; capsule ovoid, subtetragonous, bisulcate, compressed at the apex, emarginate, somewhat pubescent. null
