Herbs erect, perennial, branched, densely spreading hirsute throughout. Leaves long petiolate, margin dentate. Cymes pedunculate, many flowered, helicoid or sometimes dichotomous, in axillary or terminal panicles; upper floral leaves bractlike; bracteoles linear, ciliate. Flowers pedicellate; pedicel 1-bracteolate. Calyx ovoid, ± urceolate-globose in fruit, slightly constricted at throat, villous beyond throat inside, 10-veined; teeth 5, subequal, uppermost tooth larger. Corolla exserted, 2-lipped; tube straight, cylindric, throat slightly dilated; upper lip straight, margin entire, concave; lower lip longer, spreading, 3-lobed, lobes ovate; middle lobe largest. Stamens 4, reaching underside of upper lip of corolla, anterior 2 longer; anther cells 2, divaricate. Style apex slightly dilated, subequally 2-cleft. Nutlets triquetrous, subglobose, shiny.
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