Cryptomeria japonica (thunb. ex L.f.) D.don

Japanese cedar (en), Cryptoméria du japon (fr), Cèdre du Japon (fr), Cryptoméria du Japon (fr)

Species

Gymnosperms > Cupressales > Cupressaceae > Cryptomeria

Characteristics

Evergreen, buttressed, monoecious tree, up to 50 m high in the wild, up to 30 m high in cultivation; bark reddish brown, shredding. Branchlets hairless, deciduous. Leaves up to 20 mm long, spirally arranged in 5 ranks, persisting for 4 or 5 years, awl-shaped, blunt, margins incurved. Male cones ± 7.5 mm long, terminal, in clusters of 20 or more, orange or red when ripe. Female cones on short branchlets, surrounded by small rosettes of leaves; mature cones solitary, spherical, ± 15 mm long; scales 20-30, with 2 or 3 lobes and a recurved, triangular point on back. Seeds triangular, very narrowly winged.
More
Medium to large tree. Trunk ridged or somewhat buttressed towards base. Bark reddish brown, peeling in long strips. Crown dense. Juvenile lvs 0.8-1.8-(2.2) cm long, subulate, often red in winter. Adult lvs (from coning branches) 5-15 mm long (excluding adnate, decurrent base), subulate with broad base, directed forwards, shining green; apex acute. ♂ strobili densely clustered at apices of small shoots, 2.5-5 mm long. ♀ cones 1-1.7 cm diam. when open. Bract scale apex pungent. Ovuliferous scales with c. 6 spiny processes 2-3 mm long. Seed 4-5 mm long.
A narrow cone shaped tree. It grows 27 m tall and spreads 6 m wide. The trunk is straight and it has small buttresses at the base. The bark is reddish-brown and fibrous. The branches are in tiers but they hand down at the tip. The adult leaves are dense and in spirals pointing forward. The male cones produce pollen. The female seed-bearing cones are further along the branches. There are several cultivated varieties.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality monoecy
Pollination anemogamy
Spread -
Mature width (meter) 4.0 - 8.0
Mature height (meter) 20.0
Root system -
Rooting depth (meter) 1.35
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 warm temperate to subtropical climate plant. It needs deep, moist, rich soil. It does best in a sunny position. In Indonesia it grows between 1,100-2,500 m above sea level. It suits hardiness zones 7-11. At Anvers Chocolate factory. Arboretum Tasmania.
More
Mountains and hills in areas of higher rainfall in S. and C. Japan. Rarely spontaneous. Forests on deep, well-drained soils subject to warm, moist conditions, 1100-2500 metres.
Light 5-8
Soil humidity 4-7
Soil texture 2-5
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 6-9

Usage

The seasoned wood is used for casks, vats and kegs to age foods and impart fragrance.
Uses afforestation environmental use material medicinal ornamental shelter timber windbreak wood
Edible -
Therapeutic use Antiviral agents (aerial part), Central nervous system depressants (aerial part), Parasympatholytics (aerial part), Antiviral agents (bark), Diabetes mellitus (bark), Antifungal agents (leaf), Anti-inflammatory agents (leaf), Eczema (leaf), Edema (leaf), Exanthema (leaf), Wounds and injuries (leaf), Antiviral agents (whole plant excluding root), Central nervous system diseases (whole plant excluding root), Hypothermia (whole plant excluding root), Parasympatholytics (whole plant excluding root)
Human toxicity -
Animal toxicity -

Cultivation

It is grown from seeds. It can be grown from cuttings.
Mode cuttings seedlings
Germination duration (days) 30 - 60
Germination temperacture (C°) 17 - 20
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -23
Optimum temperature (C°) 15 - 23
Size -
Vigor -
Productivity -

Images

Habit

Cryptomeria japonica habit picture by Sarami (cc-by-sa)
Cryptomeria japonica habit picture by Jean-Christophe Lombardo (cc-by-sa)
Cryptomeria japonica habit picture by mark leem8ng (cc-by-sa)

Leaf

Cryptomeria japonica leaf picture by Jordan H (cc-by-sa)
Cryptomeria japonica leaf picture by Michael Pavlíček (cc-by-sa)
Cryptomeria japonica leaf picture by estelle schmitt (cc-by-sa)

Flower

Cryptomeria japonica flower picture by Xavier Melo (cc-by-sa)
Cryptomeria japonica flower picture by Sarami (cc-by-sa)
Cryptomeria japonica flower picture by Pereira Jorge (cc-by-sa)

Fruit

Cryptomeria japonica fruit picture by Martin Bulla (cc-by-sa)
Cryptomeria japonica fruit picture by Sébastien BEAUSSAERT (cc-by-sa)
Cryptomeria japonica fruit picture by Maya L (cc-by-sa)

Distribution

Cryptomeria japonica world distribution map, present in Brazil, France, New Zealand, United States of America, and South Africa

Conservation status

Cryptomeria japonica threat status: Near Threatened

Identifiers

LSID urn:lsid:ipni.org:names:261870-1
WFO ID wfo-0000628423
COL ID ZY5W
BDTFX ID 20151
INPN ID 93471
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Cryptomeria japonica f. nana Cryptomeria fortunei Cupressus japonica Cryptomeria compacta Cryptomeria generalis Cryptomeria kawaii Cryptomeria lobbiana Cryptomeria lobbii Cryptomeria mairei Cryptomeria mucronata Cryptomeria pungens Cryptomeria variegata Cryptomeria viridis Cupressus mairei Cryptomeria elegans Cryptomeria nana Cryptomeria japonica f. lobbii Cryptomeria japonica f. compacta Cryptomeria japonica f. pungens Cryptomeria japonica f. araucarioides Cryptomeria japonica f. dacrydioides Cryptomeria japonica f. elegans Schubertia japonicum Taxodium japonicum Cryptomeria nigricans Schubertia japonica Cryptomeria japonica var. caespitosa Cryptomeria japonica var. lobbii Cryptomeria japonica var. sinensis Cryptomeria japonica subsp. sinensis Cryptomeria japonica var. fortunei Cryptomeria japonica var. pungens Cryptomeria japonica var. radicans Cryptomeria japonica var. pendula Cryptomeria japonica var. compacta Cryptomeria japonica var. dacrydioides Cryptomeria japonica var. spiralis Cryptomeria japonica var. nana Cryptomeria japonica f. spiralis Cryptomeria araucarioides Cryptomeria japonica var. lobbii Cryptomeria japonica var. japonica Cryptomeria japonica subsp. sinenssis Cryptomeria japonica