Home
Erect herb, 40-60 cm or more. Stem 4-angled, grooved, tomentose or glabrescent. Leaves membranaceous, sparsely hirsute or nearly glabrous, very narrowly elliptic or narrowly ovate, 2-4 by 0.8-1.5 cm, subacute or obtuse, base usually cuneate, entire; margin elsewhere crenate; petiole 2-4 cm, hirsute. Pseudo-racemes terminal and in upper leaf-axils, often forming large panicles. Flowers 4-10 in a verticillaster. Bracts small, linear-spathulate; pedicels 1-2 mm, hairy. Calyx cam-panulate, 2 mm long, in fruit 2.5 mm, densely tomentose and glandular, 2-lipped; upper lip obtuse, often shortly 3-fid at the tip; lower 2-toothed, teeth acute. Corolla violet, purplish, or blue, small, 3-3.5 mm long, shortly exserted; upper lip oblong, obtuse; lower lip 3-lobed, mid-lobe exceeding the lateral ones. Nutlets ovoid, 1 by 0.7 mm, brown, rugose.
A herb. It can grow for one or two years. The stems are erect. They are 15-90 cm high. It is robust and with many branches. It has grey hairs. The leaf stalk is 4-15 mm long. The leaf blade is oval or sword shaped and 2-6 cm long by 0.8-2.5 cm wide. The edges are with rounded teeth. There are 6 flowers in a ring. The flowers are very small. The fruit is a nut about 2 mm long. It is in a hairy covering.
