Actinidia polygama (Siebold & Zucc.) Planch. ex Maxim.

Silver vine (en)

Species

Angiosperms > Ericales > Actinidiaceae > Actinidia

Characteristics

Climbing shrubs, large, deciduous. Branchlets glabrous, lenticels inconspicuous; pith white, large, solid. Petiole purplish red, 1.5-3.5 cm, glabrous; leaf blade abaxially pale green, adaxially green to entirely white, sometimes only upper half white or yellowish, ovate to oblong-ovate, 7-14 × 4.5-8 cm, membranous to thinly papery, abaxially glabrous or sparsely curly-tomentose to strigillose on midvein and lateral veins, adaxially sparsely strigillose, veins conspicuous abaxially, subconspicuous adaxially, lateral veins 6 or 7 pairs, arcuate-ascending, veinlets reticulate, abaxially subconspicuous with parallel cross-bars, inconspicuous adaxially, base broadly cuneate to rounded, margin serrulate, apex acuminate to abruptly acuminate. Inflorescences 1-flowered, or 2-or 3-flowered in a fascicle; pedicels 6-8 mm, slightly puberulent. Flowers white. Sepals (4 or)5, ovate to oblong-ovate, 5-7 mm, both surfaces glabrous or sparsely puberulent. Petals 5, obovate to oblong-obovate, 0.8-1.3 cm. Filaments 5-6 mm; anthers yellow, ovoid, 1-1.5 mm, sagittate at base. Ovary bottle-shaped, 4-6 mm, glabrous; styles 3-4 mm. Fruit orange when mature, ovoid to cylindric-ovoid to oblong-ovoid, 2.5-3 cm, glabrous, lenticels absent, rostrate at apex. Seeds 1.5-2 mm. Fl. Jun-Jul, fr. Sep-Oct. 2n = 58, 116.
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A climber. It grows up to 2.4 m long and spreads 2.4 m wide. The leaves are pale silver or gold. They are 15 cm long. The leaves are tapered. The flowers are white with yellow anthers. The fruit are 3 cm across.
Life form perennial
Growth form shrub
Growth support climber
Foliage retention deciduous
Sexuality dioecy
Pollination entomogamy
Spread -
Mature width (meter) 2.4
Mature height (meter) 5.0 - 5.5
Root system -
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 c3

Environment

It is a temperate plant. It grows naturally in woodlands and hedges in mountains throughout Japan. They are hardy to-30°C when dormant. They are damaged by frost when young. It suits hardiness zones 4-9. In Sichuan and Yunnan.
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Woodlands and hedges in mountains throughout Japan. Mountain forests at elevations of 500-1,900 metres in China.
Thickets, at elevations of 1,350-2,100 metres.
Light 5-9
Soil humidity 4-6
Soil texture 2-5
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 4-6

Usage

The fruit are eaten raw or cooked. They are also salted. The young leaves are eaten cooked. The fruit can be bitter. The sap is used as a seasoning.
Uses environmental use gene source medicinal seasoning
Edible fruits leaves saps seeds
Therapeutic use Tonic (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings.
Mode cuttings seedlings
Germination duration (days) 60 - 90
Germination temperacture (C°) 10
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -35
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Actinidia polygama unspecified picture

Distribution

Actinidia polygama world distribution map, present in China and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:60472666-2
WFO ID wfo-0000519316
COL ID 9TGY
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Trochostigma volubile Actinidia lecomtei Actinidia polygama Actinidia repanda Trochostigma polygamum Actinidia inflammans Actinidia volubilis Actinidia polygama var. latifolia

Lower taxons

Actinidia polygama var. lecomtei