Vasilis Teodoridis:
Codonopsis lanceolata (Siebold & Zuccarini) Bentham & J. D. Hooker; Gen. Pl. 2: 558. 1876.
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Campanumoea lanceolata Siebold & Zuccarini; Fl. Jap. 1: 174. 1835; C. japonica Siebold & &/ex ?Morr.? [see Belgique Hort. 337] (1863); not Maximowicz (1868); Codonopsis bodinieri H. L?veill?.
Plants glabrous throughout or occasionally sparsely villous on stems and leaves. Caudexes nearly cylindrical. Roots usually fusiform-thickened; 10?20 ? 1?6 cm. Stems twining; more than 100 cm; yellow-green but with purplish shade; often branched. Leaves on main stems alternate; lanceolate or narrowly rhomboid-ovate; 8?14 ? 3?7 mm; usually leaves 2?4 fascicled on top of branchlets; nearly opposite or verticillate; petioles 1?5 mm; leaf blades rhomboid-ovate; narrowly ovate or elliptic; 3?10 ? 1.3?4.5 cm; base attenuate; apex acute or obtuse; margin usually entire or sparsely waved-dentate; adaxially green; abaxially gray-green; veins obvious. Flowers solitary or twin on top of branchlets; pedicels 1?9 cm. Calyx adnate to ovary by half; calyx tube semiglobose; calyx lobes ovate-deltoid; 1.3?3 ? 0.5?1 cm; acute; entire; sinus between calyx lobes acute or gradually becoming broader after anthesis. Corolla broad-campanulate; 2?4 ? 2?3.5 cm; shallowly lobed; lobes deltoid; recurved; 0.5?1 cm; yellow-green or milk-white; with purple spots. Disk fleshy; dark green. Filaments subulate; slightly dilated at base; 4?6 mm; anthers 3?5 mm; ovary inferior. Capsule semiglobose below; rostate at top; 2?2.5 cm in diam. Seeds numerous; ovoid; winged; brown. Fl. and fr. Jul?Aug. 2n = 16.
Shrublands in ravines; broad-leaved forests. N; E; and SC China [Japan; Korea; Russia (Far East)].