Quercus helferiana A.Dc.

Species

Angiosperms > Fagales > Fagaceae > Quercus

Characteristics

A perennial monoecious evergreen tree. It grows 14.81-22.5m high.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality monoecy
Pollination -
Spread -
Mature width (meter) 20.0
Mature height (meter) 14.81 - 22.5
Root system -
Rooting depth (meter) 3.7
Root diameter (meter) 0.6
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 4-8
Soil humidity 3-7
Soil texture 4-6
Soil acidity 3-8
Soil nutriment -
Hardiness (USDA) 8-9

Usage

Uses charcoal dye medicinal timber wood
Edible seeds
Therapeutic use Antioxidants (leaf), Cancer(Intestine) (unspecified), Diuretic (unspecified), Fever (unspecified), Stimulant (unspecified), Astringent (unspecified), Tumor (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by graftings or seedlings.
Mode graftings seedlings
Germination duration (days) 120 - 365
Germination temperacture (C°) 10
Germination luminosity -
Germination treatment -
Minimum temperature (C°) 1
Optimum temperature (C°) 14 - 32
Size -
Vigor -
Productivity -

Distribution

Quercus helferiana world distribution map, present in China, Lao People's Democratic Republic, Myanmar, Thailand, and Viet Nam

Conservation status

Quercus helferiana threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:296242-1
WFO ID wfo-0000291077
COL ID 4R54S
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Quercus prainiana Quercus helferiana Quercus ilex Cyclobalanopsis helferiana