石蚕叶婆婆纳 shi can ye po po na

Perennials, 10-50 cm tall. Stems ascending, simple, densely pubescent with multicellular hairs along 2 lines. Lower leaves short petiolate, upper ones sessile; leaf blade ovate to ovate-orbicular, ca. 2.5 X 1.5-2 cm, sparsely puberulent, base truncate to slightly cordate, margin with deeply incised obtuse teeth, apex obtuse. Racemes paired, axillary from upper leaves, with multicellular glandular hairs (except corolla); bracts linear-elliptic, shorter or as long as pedicel. Calyx lobes 4, lanceolate, subequal. Corolla blue, rotate, ca. 1.2 cm in diam., subglabrous inside; tube less than 1.5 mm; upper and lateral lobes wider than long, lower lobes obovate. Stamens shorter than corolla. Capsule obcordate, strongly compressed. Style 5-6 mm. Seeds (2-)6-10(-14) per locule, flattened, ca. 1.5 X 1 mm. Fl. May. 2n = 16, 32.

Liaoning (Fengcheng Xian) [Kazakhstan, Russia; Europe].