Perennial up to 70 cm tall, branched. Branches ± terete, glandular-tomentose. Leaves 4.5-9 x 3-8.2 cm, ovate to rhombic-ovate, repand-sinuate or dentate, truncate, cordate or cuneate. Petiole 10-20 mm long, glandular-hairy. Bract 5-6 mm long, up to 8 mm in fruit, lanceolate. Flowers often secund. Calyx 17-19 mm long, up to 28 mm in fruit, infundibuliform, nervose, glandular-hairy, shallowly 5-lobed; lobes 2-3 mm long, obtuse-cuspidate. Corolla infundibuliform, white to pale yellow, purplish suffused within; lobes obtuse. Anthers subexserted, 3.5-4 mm long, oblong; filaments pubescent. Style exserted above stamens, tip recurved. Pyxidium 7-10 mm long, elliptic-oblong, 2-celled; seeds 0.9-1.0 mm long, reniform, minutely reticulate-foveolate.