Viola yunnanensis W.Becker & Boissieu

Species

Angiosperms > Malpighiales > Violaceae > Viola

Characteristics

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.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.0
Root system adventitious-root rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

Uses medicinal
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 14 - 21
Germination temperacture (C°) 18 - 23
Germination luminosity dark
Germination treatment stratification
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Viola yunnanensis world distribution map, present in China, Indonesia, India, Iceland, Lao People's Democratic Republic, Myanmar, Malaysia, Thailand, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:869565-1
WFO ID wfo-0001145178
COL ID 5BHTS
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Viola ovalifolia Viola malvina Viola curvistylis Viola tonkinensis Viola yunnanensis