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Chinese Plant Names | Family List | Violaceae | Viola

Viola yunnanensis W. Beck. et H. de Boiss.


Description from Flora of China

Herbs perennial. Rhizome elongate, obliquely ascending or procumbent and stemlike, with adventitious roots at nodes. Stem absent or shorter, less than 2 cm. Stolon to 37 cm, slender, usually densely white puberulous, with clustered leaves at top and often producing a new plant. Leaves nearly basal or alternate on stolon; stipules mostly free, glaucous, lanceolate, 1-1.3 cm, membranous, margin fimbriate-dentate, apex narrowly long acuminate; petioles unequal in length, 3-8 cm, densely spreading white puberulous; leaf blade abaxially gray-green, adaxially deep or dark green, oblong or oblong-ovate, 3-8 × 2-4 cm, broadest near middle, both surfaces densely gray-white puberulous, more densely so on young leaves, base shallowly and narrowly cordate, margin large crenate, apex acute or acuminate. Flowers white, 1.5-1.7 cm, ca. 1.5 cm in diam.; pedicels of cleistogamous flowers produced from basal leaf axils much shorter than leaves, those on stolon much longer than leaves; pedicels densely puberulous, 2-bracteolate above middle; bracteoles opposite, linear, 8-10 mm. Sepals linear-lanceolate or lanceolate, 5-7 mm, basal auricles short, sparsely white puberulous along veins, 3-veined, margin densely ciliate. Upper petals oblong, 1.3-1.5 cm × 5-6.5 mm, lateral ones ca. 1 cm, usually shortly bearded, anterior one shorter, deeply veined, 8-9 mm (spur included), apex acute; spur saccate, very short, ca. 1.5 mm, slightly curved downward; spur of 2 anterior stamens very shortly angular. Ovary ovoid-globose, glabrous; styles clavate, base nearly erect, gradually thickened upward; stigmas narrowly margined, shortly beaked in front, beak straight, with a smaller stigma hole at tip. Capsule green, oblong or subglobose, small, 5-7 mm. Seeds globose. Fl. Feb-Jun, fr. May-Dec.

Mountain forests, grasslands along forest margins, moist places on rocks along streamsides and roadsides; 1300-2400 m. Hainan, S Yunnan [Indonesia, Malaysia, Myanmar, Vietnam].


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