Herbs, procumbent, the stems ca 20-40 cm long, pubescent throughout, the hairs uniseriate. Leaves elongate-deltoid, acute, the bases truncate-cordate, to 5 cm long and 2 cm wide, pubescent on both surfaces, densely so beneath, the upper surface rugose-areolate; subsessile to petioles to 6 cm long on basal leaves. Inflores-cences verticils, each 6-flowered, crowded at anthesis, becoming remote at fruiting, the bracts leaf-like, enlarging with maturation. Flowers with pedicels 2-3 mm long; bracteoles not apparent; calyx campanulate, 4-6 mm long in flower, enlarg-ing to 10-1 1 mm in fruit, reticulate between the veins, membranaceous, pubescent at anthesis, weakly bilabiate, the upper lip 3-toothed, the lower 2-toothed, the teeth ca equal in length or the lower teeth slightly shorter; corolla ca 4-5 mm long, blue or purple, a ring of hair-like appendages near the base; stamens slightly exserted, the thecae ? diverging; gynobase present, the style lobes somewhat flat-tened. Nutlets (3-)4, ovoid, ca 1.8-2 mm long, the pericarp reticulate.
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