Viola purpurea var. venosa (S.Watson) Brainerd

Variety

Angiosperms > Malpighiales > Violaceae > Viola > Viola purpurea

Characteristics

Plants 3–8.5(–12) cm. Stems decumbent or erect, mostly buried, not much elongated by end of season, ± glabrous or puberulent. Leaves: basal: 1–5; petiole 5–10.3 cm, puberulent; blade purple-tinted abaxially, green adaxially, often shiny, ± orbiculate to ovate, 0.8–3.3 × 0.5–3.6 cm, ± fleshy, base truncate or ± cordate, oblique or not, margins usually irregularly dentate or crenate with 2–4 rounded teeth per side, sometimes coarse-serrate, apex acute to obtuse, abaxial surface puberulent, adaxial surface glabrous, glabrate, or sparsely puberulent; cauline: petiole 0.8–6 cm, puberulent; blade ovate, ± oblong or lanceolate, 0.9–2.7 × 0.6–2.9 cm, length 0.9–2.3 times width, margins usually coarsely crenate or dentate, sometimes ± serrate or ± entire, abaxial surface puberulent, adaxial surface glabrous (except along veins) to sparsely puberulent. Peduncles 2.9–7 cm, glabrous or puberulent. Lowest petal 6–14 mm. Capsules 4–5.5 mm. Seeds medium brown, 2–2.6 mm.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.03 - 0.09
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 -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-9

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 -

Distribution

Viola purpurea var. venosa world distribution map, present in Canada and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:266908-2
WFO ID wfo-0000430738
COL ID 5S3TG
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Viola thorii Viola venosa Viola atriplicifolia Viola nuttallii var. venosa Viola purpurea subsp. venosa Viola purpurea var. venosa Viola purpurea subsp. atriplicifolia Viola purpurea var. atriplicifolia Viola atriplicifolia var. thorii Viola aurea var. venosa Viola praemorsa var. venosa