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Carya tonkinensis Lecomte

Species

Angiosperms > Fagales > Juglandaceae > Carya

Characteristics

Trees to 15 m tall. Terminal buds naked, brown. Leaves 15-25 cm; petiole ca. 6 cm, pubescent; rachis pubescent; leaflets 5 or 7, lateral ones sessile or shortly petiolulate, blade ovate-lanceolate to elliptic-lanceolate or obovate-lanceolate, 7-18 × 2-6 cm, with abundant, peltate scales, abaxially glabrous except for hairs along midvein and in axils of secondary veins, base oblique, apex acuminate; terminal petiolule 0-5(-10) mm. Male spikes 12-13 cm; peduncle 1-5 cm. Anthers puberulent. Nuts subglobose, 2.2-2.5 × 2.6-3 cm; husk without prominent wings; shell with 4 faint, longitudinal ridges, 1.2-2.3 mm, 4-chambered at base, lacunae absent. Fl. Apr-May, fr. Sep.
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A medium sized deciduous tree. It grow 20-25 m tall and has a trunk 50-60 cm across. The end buds are naked and brown. The leaves are 15-25 cm long. The leaf stalk is about 6 cm long. It is hairy. There are 5-7 leaflets. The blade is oval or sword shaped and 7-18 cm long by 2-6 cm wide. The base is unequal. It tapers to the tip. The male spike is 12-13 cm long. Its stalk is 1-5 cm long. The nuts are half round and 2.2-2.5 cm long by 2.6-3 cm wide. The husk does not have prominent wings. The shell has 4 faint ridges along it.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality monoecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 20.0
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Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
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JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

A tropical plant. It grows between 600 and 1,200 m altitude in N Vietnam. It needs good light. It requires fertile, moist, well drained soil. In China it grows between 1300-2200 m altitude.
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Found in secondary or regenerated forest, growing best in moist and well-drained soil; at elevations up to 1,200 metres.
Light -
Soil humidity -
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Hardiness (USDA) 8-12

Usage

The seeds are edible and can also be pressed for oil. The oil is used for cooking.
Uses dye gene source medicinal oil wood
Edible nuts seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
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Images

Carya tonkinensis unspecified picture

Distribution

Carya tonkinensis world distribution map, present in China, India, Lao People's Democratic Republic, Thailand, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:442204-1
WFO ID wfo-0000588862
COL ID RHT9
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Carya tonkinensis
WorldFloraDB 2024