Knema tonkinensis (Warb.) W.j.de Wilde

Species

Angiosperms > Magnoliales > Myristicaceae > Knema

Characteristics

Trees to 12 m tall, to 25 cm d.b.h.; branches spreading and slightly drooping; juvenile branches cylindrical, with hairs ca. 0.3 mm, glabrescent, then bark grayish brown, longitudinally striate. Petiole 1.2-1.5 cm, pubescent, glabrescent; leaf blade oblong-lanceolate or narrowly elliptic, 13-24 × 4-6.5 cm, papery to nearly leathery, abaxially grayish white, with grayish brown stellate-dendroid pubescence, glabrescent with age, base broadly cuneate to nearly rounded, margins nearly parallel, apex acute or shortly acuminate; lateral veins 18-25 pairs. Male inflorescences 1-6 mm, stalked, 2-10-flowered. Male flowers: pedicel 6-10 mm; bracteole at about middle; perianth in bud obovoid, ca. 5.5 × 3.5 mm, lobes 3 or 4; staminal disk circular or subtriangular, ± flat; anthers ca. 10. Female flowers not known. Fruiting pedicel 3-6 mm. Fruits 1-3, on 3-4 mm peduncle, ellipsoid or obovoid, 2.5-4 × 2-2.8 cm, with rusty pubescence, hairs 1-2 mm, late glabrescent; perianth ± persistent; pericarp ca. 2 mm thick when dry. Aril open at apex. Fl. Dec-Feb, fr. May-Jun.
Life form -
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality dioecy
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Spread -
Mature width (meter) -
Mature height (meter) 12.0
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JanFebMar
AprMayJun
JulAugSep
OctNovDec
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JanFebMar
AprMayJun
JulAugSep
OctNovDec
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Environment

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Hardiness (USDA) 8-12

Usage

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Edible -
Therapeutic use -
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Cultivation

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Distribution

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

Conservation status

Knema tonkinensis threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:585938-1
WFO ID wfo-0001285889
COL ID 6NM9L
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Knema tonkinensis Myristica conferta var. tonkinensis