Castanopsis tibetana Hance

Species

Angiosperms > Fagales > Fagaceae > Castanopsis

Characteristics

Trees. Young shoots black to black-brown when dry, glabrous. Petiole 1.5-3 cm; leaf blade ovate-elliptic, ovate, oblong, or obovate-elliptic, 15-30 × 5-10(-13) cm, leathery, dark purple-brown when young, abaxially thinly covered with reddish brown to yellowish brown, waxy scalelike trichomes, base rounded to shortly cuneate and symmetric or sometimes inaequilateral, margin serrate except basally entire, apex acuminate, mucronate, or caudate; midvein adaxially impressed; secondary veins 15-18 on each side of midvein. Female inflorescences 5-25 cm; rachis 4-6 mm thick. Cupule globose, 6-8 cm in diam., splitting into 4(or 5) regular segments, wall 3-4 mm thick; bracts spinelike, entirely covering cupule, 1.5-2.5 cm, subglabrous to sparsely puberulent, base usually connate into bundles. Nut 1 per cupule, ± conical, 1.5-1.8 × 2-2.8 cm, hairy; scar covering ca. 1/4 of nut. Fl. Apr-May, fr. Aug-Oct of following year.
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A tree. The young shoots are black to dark brown when dry. The leaf stalk is 1.5-3 cm long. The leaf blade is oval or oblong. It is 15-30 cm long by 5-10 cm wide. It can be wider. Leaves are leathery and dark purple-brown when young. Underneath they are covered with reddish-brown scale like structures. The base is round or heart shaped and can be equal or unequal. The leaf tapers to the tip. The mid vein is sunken on the upper surface. There are 15-18 side veins on each side of the midrib. The female flowering stalk is 5-25 cm long. The cup is round and 6-8 cm across. It splits into 4 or 5 regular segments. It is covered with spine like bracts. It is 1.5-2.5 cm across. There is 1 nut per cup. The nut is cone shaped and 1.5-1.8 cm long by 2-2.8 cm wide. It is hairy.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality monoecy
Pollination anemogamy
Spread -
Mature width (meter) 0.02 - 0.03
Mature height (meter) 22.0
Root system -
Rooting depth (meter) -
Root diameter (meter) 0.4
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 broad leafed evergreen forest below 1500 m altitude in China.
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Broad-leaved evergreen forests; at elevations up to 1,500 metres.
Light 4-6
Soil humidity 4-6
Soil texture 1-4
Soil acidity 3-6
Soil nutriment -
Hardiness (USDA) -

Usage

The nuts are eaten raw.
Uses dye timber wood
Edible nuts seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings. Seeds needs soaking.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Castanopsis tibetana world distribution map, present in China

Conservation status

Castanopsis tibetana threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:295411-1
WFO ID wfo-0000815401
COL ID RP5J
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Castanopsis chengfengensis Castanopsis tibetana Quercus franchetiana