Impatiens yingjiangensis S.Akiyama & H.Ohba

Species

Angiosperms > Ericales > Balsaminaceae > Impatiens

Characteristics

Plants annual, 30-70 cm tall. Stem usually simple or shortly branched. Leaves alternate, lower ones caducous; leaf blade gray-green abaxially, dark green adaxially, elliptic or ovate-elliptic, 7-13 × 2.5-5 cm, with 1 or 2 pairs of stipitate glands at basal margin, abaxially laxly adpressed strigose, adaxially glabrous, lateral veins 6 or 7 pairs, base cuneate, narrowed into petiole 1.5-3 cm, margin shallowly crenate, teeth mucronulate, apex acute or acuminate. Inflorescences in upper leaf axils, usually 2-flowered; peduncles 1.5-2 cm, glabrous. Pedicels ca. 2 cm, bracteate at base; bracts persistent, ovate, 4-6 mm, apex acute. Flowers pink, ca. 3 cm deep. Lateral sepals 2, orbicular, ca. 8 mm, apex acute. Lower sepal pink and yellowish, limb navicular, ca. 1.4 cm, abruptly constricted into an involute spur ca. 2.4 cm; mouth vertical, ca. 1.8 cm wide, tip slightly obtuse. Upper petal pink, broadly ovate, ca. 2 × 2.2 cm, apex rounded, abaxial midvein cristate, crista ca. 3 mm high; lateral united petals clawed, ca. 3.8 cm, 2-lobed; basal lobes broadly oblong, ca. 1.6 × 1 cm, apex rounded; distal lobes ovate-dolabriform, ca. 2.5 × 1.1 cm, apex rounded; auricle inflexed, reniform. Filaments linear; anthers obtuse. Ovary fusiform, glabrous. Capsule linear or ?clavate. Fl. May. 2n = 16*.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 0.7
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

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

Usage

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

Cultivation

Mode -
Germination duration (days) 21 - 30
Germination temperacture (C°) 21 - 23
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Impatiens yingjiangensis world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:983572-1
WFO ID wfo-0001233121
COL ID 3PKPS
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Impatiens yingjiangensis