Viola decumbens L.F.

Violette à éperons (fr), Pensée éperonnée (fr), Pensée des Alpes (fr), Pensée à éperons (fr)

Species

Angiosperms > Malpighiales > Violaceae > Viola

Characteristics

Small perennial shrublet up to about 25 cm high with erect or spreading-erect, woody, minutely papillate branched stems. Leaves alternate, linear, 15-25 mm long, 0.5-2 mm broad, apex acute, somewhat succulent, minutely papillate; stipules adnate to the sessile base of lamina, large and resembling the leaf or reduced, with a small tooth on either side near the base. Flowers axillary, solitary, faintly scented, overtopping the leaves, on thin, usually long pedicels: bracts 2, subopposite in upper half or towards the apex, swollen below with 2 minute lateral teeth. Sepals narrowly ovate-acuminate, 3-5 mm long, produced below point of insertion. Petals purple to violet, veined, the upper 2 pairs subsimilar, narrowly oblong, 5-10 mm long; anterior shorter with a basal tubular blunt spur 2-5 mm long. Stamens with connivent sessile anthers, the apical connective appendage ovate, firm, orange; the 2 anterior stamens each with a long caudate nectariferous appendage projecting into the spur. Ovary globose with numerous ovules, style somewhat sigmoid. Capsule ovoid, 5-9 mm long; seed ovoid, 3 mm, yellow, minutely punctate.
More
Shrublet to 25 cm. Leaves linear. Flowers solitary in axils, nodding, faintly scented, violet to purple.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.25
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture 5-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-11

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 -

Images

Viola decumbens unspecified picture

Distribution

Viola decumbens world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:868015-1
WFO ID wfo-0001144756
COL ID 5BGMW
BDTFX ID 72206
INPN ID 129550
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Viola decumbens Viola procumbens Viola decumbens var. decumbens

Lower taxons

Viola decumbens var. scrotiformis