Herbs annual or biennial, stoloniferous. Stems 10-30 cm tall, white villous or lanate-villous especially on young parts. Basal leaves numerous, longer than stem leaves; petiole 1-2.5 cm or more, narrowly winged, purplish green or greenish, villous; leaf blade 3-6(-14) × 1.5-2.5(-5) cm, sparsely strigose to pilose, base attenuate-decurrent, ciliate, apex obtuse to rounded. Verticillasters many flowered, basally widely spaced, apically crowded in interrupted spikes 7-12 cm; apical floral leaves bractlike, lanceolate; pedicel short; calyx funnelform, 5-8 mm, margin pilose; teeth triangular, to 1/2 as long as calyx; corolla tubular, straight, basally slightly swollen, 8-10 mm, pilose, villous annulate inside; upper lip of limb straight, circular, apex emarginate; middle lobe of lower lip narrowly flabellate to obcordate, lateral lobes oblong to subelliptic. Nutlets areole to nearly 2/3 as long as adaxial side of nutlet.

Analgesic, decoagulant, depurative, febrifuge and haemostatic (whole plant)

Plants For A Future
Flora of China

The whole plant promotes tissue regeneration. A decoction of the leaves, or the leaf juice, is used internally in the treatment of bladder ailments, diarrhoea, eye troubles etc whilst externally it is applied to burns, cuts etc. A decoction of the stem is bathed onto neuralgic and rheumatic parts. A hot decoction of the seed is used in the treatment of stomach ache and diarrhoea.