Stems erect, 30-90 cm, glabrous, rarely densely pubescent and glandular below middle, glandular pubescent above middle. Leaves pinnately compound, 6-18 cm, gradually reduced upward, uppermost ones usually ± sessile; petiole 6-14 cm; leaflets 15-25, narrowly lanceolate to ovate-lanceolate, 0.5-4 cm X 2-14 mm, glabrous. Pedicel 2-3 mm, puberulent, glandular or not. Calyx 2-3(-5) mm; lobes deltoid, shorter than tube, apex acute. Corolla violet, rarely white, rotate to broadly campanulate, 0.8-1.2(-1.7) cm; lobes obovate, margin ciliate, rounded at apex. Stamens ca. as long as or longer than corolla. Style longer than stamens, exserted. Capsule 3-6 mm. Seeds brown, fusiform to oblong-lanceolate, 2-2.5 mm. Fl. Jun-Aug, fr. Jun-Sep.
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