Cinnamomum mairei H.Lév.

Species

Angiosperms > Laurales > Lauraceae > Cinnamomum

Characteristics

Trees, 6-16 m tall, 30-80 cm d.b.h. Branchlets purple-brown, terete, ± angled. Buds ovoid, ca. 2.5 mm, white sericeous. Leaves alternate or subopposite; petiole 1-1.5 cm, concave-convex, glabrous; leaf blade glaucous and opaque abaxially, green and shiny adaxially, lanceolate, 6-11 × 2.5-4 cm, leathery, densely silver sericeous when young but appressed sericeous-tomentulose when mature abaxially, glabrous adaxially, trinerved or triplinerved, midrib extending to leaf apex, with 1 or 2 pairs of additional veins curving toward leaf apex, midrib and basal lateral veins elevated abaxially, almost inconspicuous adaxially, basal lateral veins arising at or up to 5 mm above leaf base, arcuate, evanescent near leaf apex, with a few inconspicuous additional veins outside, sometimes with 2 slender secondary lateral veins along leaf margin from base, transverse veins numerous, arcuate, inconspicuous, base attenuate to subrounded, apex acuminate, acumen obtuse. Panicle 4-7(-9) cm, arising from base of current year branchlet, 5-12-flowered; peduncle slender, subfiliform, 2-4 cm, finely pubescent. Pedicels filiform, 4-8 mm, pubescent. Flowers white, ca. 5 mm. Perianth densely sericeous-pubescent outside and inside; perianth tube very short, obconical, ca. 1.5 mm; perianth lobes obovate, subequal, ca. 3.5 × 2 mm, inner ones slightly narrower, all acute. Fertile stamens 9, ca. 7.5 mm; filaments almost as long as anthers, those of 3rd whorl broad, each with 2 shortly stalked reniform glands, others glandless; anthers of 1st and 2nd whorls broadly ovate, obtuse, with introrse cells, those of 3rd whorl oblong-ovate, with extrorse cells. Staminodes 3, cordate, ca. 1.5 mm, shortly stalked. Ovary ovoid, ca. 1 mm; style robust, ca. 2.3 mm; stigma dilated, capitate. Fruit ovoid, ca. 13 × 7-8 mm, glabrous; perianth cup in fruit semiglobose, entire and 4-5 mm wide at apex; fruit stalk slender, barely thickened. Fl. Apr-May, fr. Aug-Oct.
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A tree. It grows 6-16 m tall. The trunk can be 30-80 cm across. The young branches are angled and purple-brown. The leaves are alternate or almost opposite. The leaf blade is 6-11 cm long by 2.5-4 cm wide. The flowers are white. The fruit is oval and 13 mm long by 7-8 mm wide.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 6.0 - 16.0
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 -

Environment

A tropical plant. It grows in southern China between 1300-1800 m altitude. In Sichuan and Yunnan.
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Submontane forests at elevations from 700-1,800 metres.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 6-11

Usage

The bark of the young branches is used as a spice.
Uses essential oil medicinal spice
Edible barks
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

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

Distribution

Cinnamomum mairei world distribution map, present in China and Viet Nam

Conservation status

Cinnamomum mairei threat status: Endangered

Identifiers

LSID urn:lsid:ipni.org:names:463531-1
WFO ID wfo-0000605213
COL ID 5Z7BC
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR) Link

Synonyms

Cinnamomum argenteum Cinnamomum mairei