Perennial herb; stems several, erect, 0.12-0.2 m tall or few, decumbent to straggling, up to 0.5 m long, variously pubescent, glandular hairs usually absent. Leaves subsessile or petiolate; blade firm to thick-textured, ovate to ovate-deltoid, variable in size, 10-40 x 6-24 mm, shortly and sparingly appressed pubescent to densely strigose above, less dense and more spreading beneath, often with some glandular hairs but not conspicuously glandular, apex obtuse to rounded, base deeply cordate to rounded, margin regularly and shallowly crenate; petiole up to 12 mm long. Inflorescence fairly dense above, laxer below, of 5-20 verticils; verticils 2-flowered; bracts similar to the leaves below, becoming smaller towards the apex, eventually elliptic, equal to or shorter than the calyx. Calyx densely villous to densely and shortly pubescent, without glands, 7-10 mm long. Corolla white with a few lilac markings on the lower lip; tube 7-11 mm long; upper lip ascending, 2-3 mm long; lower lip deflexed, 5-7 mm long.
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