Perennial herb, 0.45-1.00 m high. Stems decumbent or ascending. Leaves sessile in upper part of stem, petiolate below; blade broadly ovate, 35-70 x 25-50 mm base cordate, apex obtuse to rounded, margins finely and regularly crenate, densely appressed-tomentose on both surfaces. Flowers: verticils 6-flowered, fairly closely spaced; calyx 6-7 mm long, teeth up to 2 mm long, densely glandular-pubescent; corolla white or tinged with mauve; Nov.-Feb.