Soft shrub, 0.6-2.0 m high; roots fibrous; stems ascending; plant sparingly pubescent to glandular-pubescent. Leaves petiolate, broadly ovate to ovate-elliptic, base obtuse and abruptly attenuate, apex obtuse to acute, margins regularly crenate-dentate; lower surface suffused with purple with honey-coloured gland dots. Inflorescence: rachis 80-250 mm long; verticillasters 2-6-flowered. Flowers bluish mauve. Calyx 7-8 mm long when fruiting, glandular-hispid with scattered multicellular hairs. Corolla 5-13 mm long; tube deflexed, saccate to distinctly spurred at base, narrowing towards throat; upper lip purple-speckled; lower lip boat-shaped, later deflexed. Flowering time Mar.-May.
Soft, sparsely hairy shrub to 2 m. Leaves ovate, toothed. Flowers in panicles, calyx glandular-hairy, corolla saccate at base, mauve, blue or pink with darker speckling.