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Quercus glauca Thunb.

Ring-cup oak (en)

Species

Angiosperms > Fagales > Fagaceae > Quercus

Characteristics

A small evergreen tree. It grows 15 m tall and spreads 4.5 m wide. The branches are stout and leafy. The bark is tough and cracked. The leaves are oval and have teeth along the edge. They are bronze coloured when young. They turn shiny green above and waxy underneath. The fruit are oval acorns in cups. They are 2 cm long.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality monoecy
Pollination anemogamy
Spread -
Mature width (meter) 4.0 - 4.5
Mature height (meter) 12.5 - 15.0
Root system -
Rooting depth (meter) -
Root diameter (meter) 0.3
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 in mountain and moist forests between 800-3,000 m above sea level. In Pakistan it grows between 700-2,000 m altitude. Melbourne Botanical gardens. It suits hardiness zones 7-10.
More
Moist forests and ravines, not gregarious, 800-3000 metres from Pakistan to S.W. China. Shady valleys.
Light 5-8
Soil humidity 3-7
Soil texture 2-4
Soil acidity 2-7
Soil nutriment -
Hardiness (USDA) 8-10

Usage

The leaves are eaten with oil and salt.
Uses construction dye material medicinal oil seasoning wood
Edible leaves nuts seeds
Therapeutic use Astringents (bark), Diarrhea (bark)
Human toxicity -
Animal toxicity -

Cultivation

Plants can be grown from seeds.
Mode cuttings graftings seedlings
Germination duration (days) 120 - 365
Germination temperacture (C°) 10
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -12
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Quercus glauca leaf picture by jivitesh kohli (cc-by-sa)

Distribution

Quercus glauca world distribution map, present in China, Japan, Lao People's Democratic Republic, Myanmar, Nepal, Pakistan, Korea (Democratic People's Republic of), Taiwan, Province of China, and Viet Nam

Conservation status

Quercus glauca threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:927477-1
WFO ID wfo-0000290946
COL ID 4R52B
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Quercus globosa Quercus laxiflora Quercus lotungensis Quercus sasakii Quercus tranninhensis Quercus vaniotii Quercus amamiana Quercus bambusifolia Quercus dentosa Quercus ichangensis Quercus lacera Quercus longipes Quercus matasii Cyclobalanopsis repandifolia Cyclobalanopsis glauca Cyclobalanopsis sasakii Cyclobalanopsis vibrayana Cyclobalanopsis globosa Perytis glauca Cyclobalanopsis glauca f. latifolia Cyclobalanopsis amamiana Quercus acuta var. bambusifolia Quercus blakei var. vaniotii Quercus glauca var. amamiana Quercus glauca var. caesia Quercus glauca var. lacera Quercus glauca var. linearifolia Quercus glauca var. micrococca Quercus glauca var. podocupula Cyclobalanopsis glauca var. kuyuensis Quercus glauca var. kuyuensis Quercus glauca var. stricta Quercus glauca var. elongata Cyclobalanopsis glauca var. elongata Cyclobalanopsis glauca var. linearifolia Cyclobalanopsis glauca var. stricta Cyclobalanopsis glauca var. lacera Cyclobalanopsis glauca var. latifolia Quercus glauca var. villosa Quercus glauca f. lacera Quercus repandifolia Quercus glauca subsp. euglauca Quercus vibrayeana Quercus glauca
WorldFloraDB 2024