Quercus macrocalyx Hickel & A.Camus

Species

Angiosperms > Fagales > Fagaceae > Quercus

Characteristics

An evergreen tree. It grows 20-25 m tall. The trunk is 60-80 cm across. The bark is smooth and grey. The leaves are large and long. The nut is oval and 5-5.5 cm long by 2.5 cm wide.
Life form -
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality monoecy
Pollination -
Spread -
Mature width (meter) 0.6 - 0.8
Mature height (meter) 20.0 - 25.0
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

A tropical plant. It grows in tropical evergreen forests at 500-1,000 m altitude. It occurs on slopes and mountain tops.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

The starch in the nut is edible. It is also used to distill alcohol. Caution: Alcohol is a cause of cancer.
Uses -
Edible nuts
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Plants are grown from seeds.
Mode seedlings
Germination duration (days) 120 - 365
Germination temperacture (C°) 10
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

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

Conservation status

Quercus macrocalyx threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:359812-1
WFO ID wfo-0000291871
COL ID 4R5FR
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Quercus macrocalyx Quercus megalocarpa Cyclobalanopsis macrocalyx Cyclobalanopsis nengpulaensis Cyclobalanopsis austroyunnanensis Cyclobalanopsis fleuryi Quercus tsoi Quercus fleuryi