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Perennial shrub or herb, 0.3-1.0 m high; one or more stems from woody rootstock; glandular-villous. Leaves petiolate or upper ones subsessile; broadly ovate to oblong-lanceolate, 40-160 x 15-70 mm, rugose, base cordate to obtuse, apex acute to rounded, margins irregularly crenate to eroso-dentate; scabrid, glandular-pubescent, lower surface markedly reticulate. Inflorescence simple; verticillasters 15 or more, spaced below, denser above, each 6-flowered. Flowers whitish, pale blue or mauve. Calyx glandular-hispid to villous, up to 12 mm long. Corolla: tube 8-12 mm long; lower lip often shorter than the upper.
Perennial herb, 0.3-1.0 m high. Stems erect, annual; lower stem with indumentum of many, capitate, glandular hairs. Leaves petiolate and sessile; blade broadly ovate to narrowly ovate-oblong, 40-160 x 15-70 mm, margins irregularly crenate to erose-dentate, lower surface markedly reticulate, rugose, scabrid, glandular-pubescent. Flowers: verticils 6-8-flowered; upper lip of calyx 2-or 3-toothed, mature calyx 10-15 mm long, glandular-hispid to villous; corolla 15-30 mm long, upper lip falcate, whitish, pale blue or mauve; Nov.-May.
A herb or shrub. It grows 1.2 m high. It has a woody rootstock with one or more stems. The leaves are often crowded and larger near the base of the plant. The blade is broadly oval and 4-16 cm long by 2-7 cm wide. The leaves are rough and have distinct veins. The flowering stalks are on the ends of leafless stalks and have flowers in a ring.
Aromatic, viscid shrub, up to 1.2 m tall. Leaves ± crowded below, roughly hairy, ovate, toothed. Flowers usually in a branched inflorescence in verticils, calyx glandular-hairy, corolla whitish to mauve, 15-30 mm long, upper lip deeply hooded, calyx cylindrical campanulate, with 3 upper teeth connivent.
Soft, glandular-hairy shrub to 1.2 m. Leaves often crowded below, roughly hairy, ovate, toothed. Flowers in verticils, calyx glandular-hairy, corolla whitish to mauve, 15-30 mm long, upper lip deeply hooded.
