Dioscorea aspersa Prain & Burkill

Species

Angiosperms > Dioscoreales > Dioscoreaceae > Dioscorea

Characteristics

Tubers cylindric; transverse section white. Stem twining to right, glabrous. Leaves opposite basally on stem, alternate distally on stem, simple; petiole 3.5--18 cm; leaf blade drying dark brown, suborbicular, 6--16 × 5--16 cm, papery, glabrous, basal veins 7 or 9, base cordate to deeply so, margin entire, apex acute to caudate. Male spikes solitary or 2 or 3 together, 5--14 cm; rachis straight. Male flowers: perianth white, greenish white, or yellow, 2--3 mm, outer lobes broadly ovate, fleshy, inner ones smaller than outer; stamens 6, anthers nearly as long as filaments. Female spike solitary. Female flowers: perianth lobes ovate. Capsule not reflexed, obovoid or long obovoid, 2.5--3.5 cm, pruinose, base usually oblique, apex emarginate; wings 1--1.5 cm wide. Seeds inserted near middle of capsule, winged all round. Fl. Jun--Jul, fr. Jul--Nov.
Life form annual
Growth form herb
Growth support -
Foliage retention -
Sexuality dioecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
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 -

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 - 36
Germination temperacture (C°) 21 - 23
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Dioscorea aspersa world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:317681-1
WFO ID wfo-0000389111
COL ID 36CDD
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Dioscorea aspersa Dioscorea pulverea