Perennial, few-stemmed erect herb 0.25-0.5 m tall; stems sparingly branched, retrorse-hispid to scabrid and with a hairy interpetiolar ridge at the nodes. Leaves petiolate, drying brown or blackish; blade oblong-deltoid to ovate-deltoid, 20-40 x 5-15 mm, sparingly appressed pilose above with occasional bulbous-based hairs towards the margin, paler, reticulate and sparingly pilose beneath, especially on the nerves, apex obtuse to rounded, base truncate to subcordate, margin finely crenate; petiole 5-10 mm long. Inflorescence simple or with a pair of branches at the base, lax below, dense towards the apex; verticils 2-10-flowered; upper bracts subequal to the calyx or longer, hispidulous and gland-dotted below. Calyx somewhat sparingly hispidulous, 5-7 mm long. Corolla colour unknown; tube 5-7 mm long; upper lip ascending, 5-6 mm long; lower lip slightly deflexed, 8-10 mm long.
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