Viola kansuensis W. Becker; V. kansuensis var. oblonga W. Becker; V. polymorpha C. C. Chang; V. pseudoarcuata C. C. Chang; V. weixiensis C. J. Wang.

Herbs perennial, caulescent or sometimes nearly acaulescent, ca. 15 cm tall, glabrous throughout. Rhizome erect, very long, to 12 cm, stout, 4-7 mm thick, internodes shortened, nodes dense and with remains of brown stipules, often branched at top and with numerous long, slender, fibrous roots. Leaves numerous, mostly basal, rosulate; stipules free, brown when dry, linear-lanceolate or subulate, 1.2-2 cm, margin densely, long fimbriate, with inconspicuous glandular dots on both sides; petiole long, to 12 cm, slender, glabrous; leaf blade triangular-ovate, ovate, or ovate-cordate, 2-3.5 × 1.6-3 cm, both surfaces glabrous but with dense brown glandular dots, base truncate or shallowly cordate, margin serrate, apex abruptly acute or slightly acuminate. Flowers white or purplish, ca. 1 cm; pedicels filiform, long, 4-7 cm, not or slightly exceeding leaves, slender, 2-bracteolate above middle; bracteoles alternate, linear. Sepals linear-lanceolate, ca. 6 mm, conspicuously 3-veined, margin narrowly membranous, apex acuminate; basal auricles of lower sepals ca. 1.5 mm, apex rounded; lateral sepals narrower, apex slightly abruptly acute. Petals obovate-oblong; lateral ones bearded; anterior one distinctly purplish striate in throat; spur saccate, ca. 2.5 mm, apex rounded. Anthers ca. 2 mm. Ovary glabrous, with brown glandular dots; styles clavate, ca. 1.5 mm, slightly slender at base and slightly geniculate; stigmas flat at top, slightly thick and elevated behind, with few papillose proturbances, shortly beaked in front, with larger stigmatic hole at tip of beak, hole spatulate, opening upward. Capsule nearly oblong, 4-9 mm, with sparse brown glandular dots. Seeds dark brown, ovoid-globose, ca. 2 mm, ca. 1 mm in diam. Fl. Mar-May, fr. May-Sep.

● Mountain forests, forest margins, riversides; 300-2400(-3500) m. W Hubei, S Shaanxi, Sichuan, NW Yunnan.