Dioscorea tenuipes Franch. & Sav.

Sweet mountain yam (en)

Species

Angiosperms > Dioscoreales > Dioscoreaceae > Dioscorea

Characteristics

Rhizome horizontal, cylindric, 0.6--1.5 cm thick, with obvious nodes and internodes. Stem twining to left, glabrous, smooth. Leaves alternate, simple; petiole 3--5 cm; leaf blade drying green, triangular, 5--10(--13) × 2.5--7(--11) cm, papery, glabrous, base broadly cordate, margin entire or slightly undulate, apex acuminate or caudate. Male spike solitary, rarely paired, 7--18 cm. Male flowers: solitary or paired; pedicel 1.5--8 mm; perianth pale yellow, saucer-shaped to slightly reflexed, lobes suboblanceolate, apex obtuse or rounded; stamens 6, inserted at base of perianth, anthers extrorse, 3 with forked connectives and 3 without. Female spikes to 8 cm, few flowered. Female flowers: staminodes filiform. Capsule pale yellow-brown, shiny, 2--2.5 cm, base rounded, apex truncate; wings 1.2--1.5 cm wide. Seeds inserted near middle of capsule, winged all round.
Life form
Growth form herb
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Sexuality dioecy
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Root system rhizome
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Environment

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Hardiness (USDA) 6-10

Usage

Uses medicinal
Edible -
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Cultivation

Mode -
Germination duration (days) 21 - 36
Germination temperacture (C°) 21 - 23
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Images

Dioscorea tenuipes unspecified picture

Distribution

Dioscorea tenuipes world distribution map, present in China, Japan, and Korea (Democratic People's Republic of)

Identifiers

LSID urn:lsid:ipni.org:names:318678-1
WFO ID wfo-0000395945
COL ID 36DCP
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Dioscorea tenuipes Dioscorea acrotheca Dioscorea maximowiczii