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Quercus aliena Blume

Galcham oak (en)

Species

Angiosperms > Fagales > Fagaceae > Quercus

Characteristics

Trees to 30 m tall, deciduous. Branchlets grayish brown, glabrescent, lenticellate; lenticels brownish, rounded. Petiole 1-1.3 cm, glabrous; leaf blade narrowly elliptic-obovate to obovate, (5-)10-20(-30) × 5-14(-16) cm, base cuneate to rounded, apex slightly obtuse to shortly acuminate; secondary veins 10-15 on each side of midvein. Female inflorescences axillary on young shoots; cupules solitary or in fascicles of 2 or 3. Cupule cupular, 1-1.5 × 1.2-2 cm, enclosing ca. 1/2 of nut; bracts ovate-lanceolate, ca. 2 mm, crowded, grayish pubescent. Nut ellipsoid to ovoid, 1.7-2.5 × 1.3-1.8 cm; scar slightly raised; stylopodium ca. 1 mm in diam. Fl. Mar-May, fr. Sep-Nov.
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A tree. It grows to 30 m tall. It loses its leaves during the year. The leaf stalk is 1-1.3 cm long and the leaf blade is narrowly oval. It is 10-20 cm long by 5-14 cm wide. The base is wedge shaped or rounded. It tapers to a short tip. The female flowering shoot is in the axils of leaves on young shoots. The nut is 1.7-2.5 cm long by 1.3-1.8 cm wide. The cup encloses half the nut.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality monoecy
Pollination anemogamy
Spread -
Mature width (meter) 15.0
Mature height (meter) 20.0 - 25.0
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. In China it grows in mixed forest between 100-2700 m altitude.
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Mixed mesophytic forests; at elevations from 100-2,700 metres.
Light 4-9
Soil humidity 4-7
Soil texture 2-4
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 5-8

Usage

Uses construction dye food invertebrate food material medicinal wood
Edible nuts seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) 120 - 365
Germination temperacture (C°) 10
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -29
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Quercus aliena leaf picture by 由美子 島崎 (cc-by-sa)

Distribution

Quercus aliena world distribution map, present in China, Japan, Lao People's Democratic Republic, Myanmar, Korea (Democratic People's Republic of), and Thailand

Conservation status

Quercus aliena threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:295765-1
WFO ID wfo-0000289483
COL ID 4R487
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Quercus aliena Quercus aliena var. jeholensis Quercus aliena var. rubripes Quercus aliena var. acutidentata Quercus aliena var. pubipes Quercus aliena f. calvescens Quercus aliena f. licenti

Lower taxons

Quercus aliena var. acutiserrata Quercus aliena var. aliena Quercus aliena var. alticupuliformis Quercus aliena var. pellucida
WorldFloraDB 2024