Viola tenuicornis W.Becker

Species

Angiosperms > Malpighiales > Violaceae > Viola

Characteristics

Herbs perennial, acaulescent, 2-13 cm tall. Rhizome usually erect, short, 2-10 mm, slender or slightly thick, densely noded, with several yellowish rootlets. Leaves 2 to numerous, basal; outer stipules submembranous, inner ones greenish, 2/3 adnate to petioles, free part linear-lanceolate or lanceolate, margin remotely fimbriate-dentate; petiole 1.5-6 cm, slender, wingless or very narrowly winged in upper part, usually puberulous or subglabrous; leaf blade abaxially dark purple to green, adaxially green, ovate or broadly ovate, 1-3 × 1-2 cm, accrescent at fruiting, to 6 × ca. 4.5 cm, glabrous or puberulous along veins or margin, base slightly cordate or subrounded, margin shallowly crenate, apex obtuse. Flowers purple-violet; pedicels slightly or not exceeding leaves, slender, puberulous or subglabrous, 2-bracteolate at or slightly below middle; bracteoles linear. Sepals usually green or purplish red, lanceolate or ovate-lanceolate, 5-8 × 1.5-2 mm, glabrous or puberulous, 3-veined, margin narrowly membranous, apex acute, basal auricles short, 1-3 mm, apex truncate or rounded, rarely shallowly dentate. Petals obovate, upper ones 1-1.2 × ca. 6 mm, lateral ones 8-11 × 3-4.5 mm, slightly bearded or glabrous, anterior one 1.5-1.7(-2) cm (spur included); spur cylindric, 5-7(-9) mm, robust or slender, 1.2-3 mm in diam., apex rounded and curved upward. Anthers 1.5-2 mm; spur of 2 anterior stamens long, ca. 5.5 mm, slender, ca. 0.3 mm in diam., apex rounded and slightly curved. Ovary glabrous or puberulous; styles clavate, base geniculate forward, conspicuously thickened in upper part; stigmas conspicuously thickened on lateral sides and abaxially, slightly raised in central part, shortly beaked in front, with a stigma hole open upward at tip of beak. Capsule ellipsoid, 4-6 mm, glabrous.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.02 - 0.13
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) 5-10

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 -

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:869380-1
WFO ID wfo-0001145049
COL ID 5BHP2
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Viola tenuicornis Viola x interposita Viola variegata var. chinensis Viola tenuicornis subsp. tenuicornis Viola tenuicornis var. brachytricha Viola ircutiana subsp. tenuicornis

Lower taxons

Viola tenuicornis subsp. trichosepala