herbaceous or suffruticose from a perennial rootstock; stem, leaves and outside of calyx clothed with white simple hairs; stem erect, branched, sulcate when dry; leaves cordate, acuminate, entire or irregularly dentate-sinuate, 3–4 in. long, 2 1/2–3 in. wide; petiole up to 2 1/2 in. long; flowers solitary on cernuous peduncles 4 lin. long, arising just outside the leaf-axils; calyx in flower 6 lin. in diam., campanulate with 5 lanceolate acute lobes 3 lin. long, in fruit shortly ovoid, acuminate, 1 1/2 in. long, 1 1/4 in. in diam.; corolla 9 lin. in diam., rotate-campanulate, slightly 5-lobed, pale yellow, with 5 large dark purple spots at the base of the lobes; stamens inserted near the corolla-base; filaments filiform, 2 lin. long; anthers oblong, obtuse, 1 3/4 lin. long, dehiscing longitudinally; ovary globose; style cylindrical, 4 lin. long; stigma subcapitate; berry globose, 6 lin. in diam., glabrous. null
