Description from Flora of China
Viola sikkimensis W. Becker var. debilis W. Becker.
Herbs perennial, small, acaulescent or nearly so, 4-9 cm tall, glabrous, sometimes stoloniferous. Rhizome nearly erect, slender, densely noded. Leaves basal; stipules free or adnate to petioles only at base, brown, lanceolate, ca. 0.5 mm, margin fimbriate, apex acuminate; petioles unequal in length, 2-5 cm, glabrous; leaf blade abaxially purple, adaxially deep green, orbicular or sometimes reniform, 1-3 × 1-3 cm, both surfaces glabrous, base shallowly cordate or truncate, margin deeply crenate, shortly spinose in between teeth, apex obtuse. Flowers light violet, sometimes white; pedicels 4-9 mm, slender, 2-bracteolate at upper part; bracteoles linear. Sepals lanceolate, usually pubescent, 3-5 × 1.5-2 mm, apex ± acute, basal auricles absent, margin membranous, apex truncate. Petals obovate-oblong, upper ones 1-1.2 cm × ca. 4 mm, lateral ones subequaling upper ones, glabrous, anterior one shorter, ca. 9 mm (spur included), purple veined; spur saccate, shorter, ca. 2 mm. Anthers ca. 1.5 mm. Ovary globose, with brown glandular dots; styles clavate, base geniculate; stigmas narrowly margined on lateral sides and abaxially, shortly beaked in front. Capsule ellipsoid, ca. 7 mm, glabrous, often with brown glandular dots. Fl. Apr-May, fr. May-Aug.
● Forests, forest margins, grasslands on mountain slopes, stream valleys, shaded places on rocks; 600-2000 m. Fujian, N Guangdong, Hunan, Jiangxi, Sichuan.