Viola pilosa Bl.

In FRPS (51: 90. 1991), the name Viola canescens Wallich was misapplied to this species.

Herbs perennial, acaulescent or with very short stem. Rhizome erect or obliquely ascending, 3-5 cm × 1.5-4 mm; internodes conspicuous. Stolon elongated, slender, glabrous, with evenly scattered leaves. Leaves nearly basal; stipules mostly free, brown or green, lanceolate, margin long or shortly fimbriate-dentate, apex long acuminate; petioles nearly as long as blades or lower ones much longer than blades, densely appressed hirsute, more densely hairy in upper part; leaf blade greenish on both surfaces, ovate or narrowly ovate, 2-6 × 1-3 cm, sparsely white stiffly hairy, more densely so along veins abaxially, base narrowly and deeply sinuate, lateral auricles conspicuous, margin densely and shallowly obtusely dentate, apex caudate-acuminate or acute. Flowers purplish or white, medium-sized; pedicels usually exceeding leaves, sparsely puberulous or subglabrous, 2-bracteolate above middle; bracteoles linear. Sepals lanceolate, 6-7.5 × ca. 2.5 mm, apex acute, basal auricles 2-2.5 mm, outside usually sparsely white puberulous, margin ciliate, apex remotely and shallowly dentate. Petals oblong-obovate, base narrower, lateral ones bearded, anterior one shorter, inside deep-colored veined; spur saccate, 2-2.5 mm, usually sparsely puberulous; spur of 2 anterior stamens ca. 1.5 mm, angular. Ovary usually puberulous; styles clavate, base slightly geniculate, gradually thickened upward; stigmas ± flat, not margined, very inconspicuously short beaked in front, with smaller stigma hole at tip of beak. Capsule subglobose, 5-10 mm, puberulous or glabrous. Seeds with dotted protuberances on surface, conspicuously appendaged on lower lateral side. Fl. Feb-Apr, fr. May-Sep. 2n = 20.

Prostrate to subprostrate herb, with stoloniferous stem rooting at nodes. Roots slender, branched. Leaves 2-5 x 2.5-5 cm, broadly ovate or reniform, covered with short reflexed pubescence on both sides, cordate, serrate, acuminate, 5-7-nerved or veined, sinus deep, entire. Petiole almost equalling the size of lamina. Stipules free, 1.25-1.5 x 0.2-0.4 cm, lanceolate, acute, dentate, pale green; peduncles filiform, solitary, axillary, a little larger than the petiole, erect. Bracteoles 2, opposite or subopposite. Flowers small, 3.5 cm long, resupinate, whitish blue. Sepals c. 5.0 x 1.5-2 mm, lanceolate, acute, ciliate-denticulate. Petals oblanceolate-obovate, obtuse, marked with dark coloured violet lines, bearded above with short hairs, the upper petal smaller than the rest and acute; spur obtuse, c. 6 mm long. Anthers distinct. Ovary ovate, c. 2.5 mm long, 1.5 mm broad, glabrous; style 3.5 mm long, beaked, beak directed downward.

Afghanistan, Himalaya (Kashmir to Sikkim), Assam, Burma, Thailand, Indo-China, W. China, Malaysia.

W Guangxi, Guizhou, Sichuan, SE Xizang, Yunnan [Afghanistan, Bhutan, India, Indonesia, Kashmir, Malaysia, Myanmar, Nepal, Sri Lanka, Thailand].

Distribution: Pakistan, India, Ceylon, Nepal, China and Java.

1200-3000 m

Fl. Per.: April-August.

Mountain forests, grasslands, roadsides; 800-3000 m.

Viola pogonantha W. W. Smith; V. serpens Wallich ex Gingins; V. serpens subsp. gurhwalensis W. Becker; V. serpens var. pseudoscotophylla H. Boissieu.

Hoa tím lông (danh pháp khoa học: Viola pilosa) là một loài thực vật có hoa trong họ Hoa tím. Loài này được Blume miêu tả khoa học đầu tiên năm 1823.

匍匐堇菜（学名：Viola pilosa）为堇菜科堇菜属的植物。分布在缅甸、印度尼西亚、马来西亚、喜马拉雅地区、泰国、印度以及中国大陆的西藏、四川、云南、江西等地，生长于海拔800米至2,500米的地区，常生于草地、山地林下以及路边，目前尚未由人工引种栽培。