An erect or ascending herb, robust, much branched, glabrous, 7-24 in. high, turning dusky in drying; root fibrous, annual; branches opposite, tetragonous, erect-patent, ascending; internodes usually rather longer than the leaves; leaves opposite, or sometimes verticillate in fours, ovate, more or less acute or apiculate at the apex, subtruncate or shortly narrowed at the 5-nerved base, serrate, firmly membranous, spreading or erect-patent, 1/2-11/2 in. long, 1/4-1 in. broad, subsessile or shortly petiolate; flowers axillary to the upper leaves; peduncles solitary, 1-flowered, rather slender, 1/4-1/2 in. long, spreading, ascending; calyx-segments linear-elliptical, obtusely narrowed at both ends, 1/5-1/3 in. long; corolla flesh-coloured; lips 1/8-1/6 in. long; lobes of the upper lip short and rounded; palate not bearded; spur conical, rounded at the free end, small, about 1/12 in. long; capsules compressedly urceolate, subtruncate and emarginate at the apex with the outer points diverging in little horns, unequal and rounded at the base, 1/4-1/2 in. long, 1/4-1/3 in. broad, glabrous.
More
Short-lived perennial to 40 cm. Leaves opposite, ovate, 3-5-veined from base, sharply toothed. Flowers crowded in upper axils, white to pink, lips subequal, lower lip with a raised, velvety palate, upper lobes rounded, spur ± 2 mm long, sepals leaf-like.
Home