圆叶堇菜 yuan ye jin cai

Viola bambusetorum Handel-Mazzetti; V. emeiensis C. J. Wang; V. lianhuashanensis C. J. Wang & K. Sun; V. pseudobambusetorum Chang; V. schensiensis W. Becker.

Herbs perennial, acaulescent, 5-7 cm tall. Rhizome nearly erect, slightly robust, shortly and conspicuously noded, with few brown remains of stipules. Leaves basal, usually 3-5; stipules brownish or dark brownish, adnate to petioles in lower part, free part ovate-lanceolate, margin entire or sparsely shortly fimbriate, apex acuminate; petiole long, 4-6 cm, slender; leaf blade subreniform, orbicular, or ovate, 1-1.5 × 1-1.5 cm, both surfaces glabrous, base narrowly cordate, margin obtusely serrate, apex mucronate or obtuse. Flowers pinkish, deep purple, purple-white, or white, small; pedicels slightly exceeding leaves, slender, 2-bracteolate near middle; bracteoles opposite, linear, ca. 5 mm, margin remotely denticulate. Sepals linear-lanceolate, ca. 3 mm, margin narrowly membranous, apex ± acute, basal auricles not conspicuous, ca. 0.5 mm, apex obtuse. Petals oblong-obovate, upper ones ca. 8 × 3 mm, base attenuate, apex obtuse, lateral ones ca. 7 × 3 mm, shortly bearded, anterior one ca. 8.5 mm (spur included); spur shortly saccate, 2-2.5 mm, ca. 2 mm in diam., apex obtuse. Anthers ca. 1.5 mm, appendage of connectives subequaling anthers; spur of 2 anterior stamens shortly angular, ca. 1.5 mm. Ovary ovoid-globose, ca. 1.5 mm; styles clavate, 1.7-3 mm, base slender and slightly geniculate forward; stigmas slightly flat at top, narrowly margined on lateral sides, shortly beaked in front, beak erect, with a smaller stigma hole at tip. Fl. May, fr. Jun-Sept. 2n = 24*.

● Grasslands on mountain slopes, moist places on rocks; 1200-3400 m. Anhui, Chongqing, Gansu, Henan, Hubei, Hunan, Jiangxi, Shaanxi, Sichuan, Yunnan.