Viola orientalis W.Becker

Species

Angiosperms > Malpighiales > Violaceae > Viola

Characteristics

Herbs perennial. Rhizome usually erect, sometimes obliquely ascending, 1-3 cm, robust, ca. 5 mm in diam., densely noded; roots numerous, white to yellowish brown, to 10 cm, with numerous filiform rootlets in lower part. Stems erect, 6-10 cm tall, usually puberulous. Stipules small, adnate to petiole only at base, free part ovate, 1-2 mm, margin entire or remotely serrulate; basal leaf petiole 3-10 cm; blade ovate, broadly so, or elliptic, 2-4 × 1.5-3 cm, abaxially puberulous, adaxially subglabrous, base cordate, sometimes subtruncate, margin obtusely serrate, apex acute; cauline leaves 3(or 4), upper 2 very shortly petiolate or subsessile, subopposite, lower ones shortly petiolate, above middle of stem. Flowers yellow, ca. 2 mm in diam., usually 1-3 in cauline leaf axils; pedicels 1-3 cm, white puberulous, sometimes glabrous, 2-bracteolate at upper part; bracteoles usually opposite, sometimes alternate, ovate, small, 1-2 mm. Sepals lanceolate or oblong-lanceolate, 5-7 mm, apex acute, basal auricles suborbicular, short. Petals obovate, upper and lateral petals curved toward outside, upper ones dark purple striate, lateral ones inside conspicuously barbate, anterior one shorter, 1-1.5 cm (spur included); spur saccate, short, 1-2 mm; spur of anterior stamens ca. 0.5 mm wide. Ovary glabrous; styles slightly straight at base, gradually thickened upward; stigmas capitate, with several series of long beards on lateral sides. Capsule greenish, ellipsoid or oblong, 7-12 mm, often dark purple punctate. Seeds white to brownish, ovoid-globose, ca. 2 mm. Fl. Apr-May, fr. Jun-Jul. 2n = 12.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.06 - 0.1
Root system 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) 5-9

Usage

Uses -
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 -

Images

Viola orientalis unspecified picture

Distribution

Viola orientalis world distribution map, present in China, Japan, and Korea (Democratic People's Republic of)

Identifiers

LSID urn:lsid:ipni.org:names:868856-1
WFO ID wfo-0000423343
COL ID 7G457
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Viola orientalis Viola xanthopetala Viola conferta Viola uniflora var. orientalis Viola orientalis var. conferta