Dipterocarpus obtusifolius Teijsm. ex Miq.

Species

Angiosperms > Malvales > Dipterocarpaceae > Dipterocarpus

Characteristics

Small or medium-sized, usually misshapen and often coppiced tree with open crown and thick, corky deeply fissured bark. Twigs, leaf buds and petioles densely pale fulvous to buff hirsute or glabrous; leaf beneath and midrib above shortly densely evenly persistently buff pubescent, with the nervation more, or less (Malaya), hirsute; fruit glabrescent. Twig c. 1 mm ø apically, stout. Bud to 20 by 6 mm, lanceolate, subacute; stipules to 7 by 1 cm, lorate, obtuse. Leaves 14-22 by 10-16 cm, broadly ovate, thickly coriaceous, prominently plicate, crenate in the distal 1/2; base obtuse or subcordate; apex obtuse or subacute; nerves 14-20 pairs, stout, prominent beneath, ascending; petiole 2.5-4 cm long, c. 4 mm ø, stout. Flower bud to 2.5 by 1.2 cm; stamens c. 30, +-equalling style at anthesis; filaments lorate, tapering c. 1/2 as long as the relatively stout tapering lorate anthers; appendage acicular, c. 2/3 as long as anther; ovary ovoid, pubescent, surmounted by a slender columnar style ± thrice its length and pubescent in the basal 1/2. Fruit pedicel to 2 by 3 mm, short; calyx tube to 2.5 cm ø, subglobose, smooth; 2 longer lobes to 15 by 3 cm, lorate-spatulate, obtuse, abruptly tapering to c. 8 mm broad at the subrevolute base; 3 shorter lobes to 15 by 10 mm, ovate, obtuse, subrevolute.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 25.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

A characteristic and frequently gregarious fire-resistant component of the dry Dipterocarp (savannah) forest; rarely found also in Schima-bamboo forests. Found at elevations up to 1,200 metres.
More
Rare, in Schima-bamboo forests in Malesia. Elsewhere a characteristic and frequently gregarious fire-resistant component of the Dry Dipterocarp (savanna) forest.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses material medicinal wood
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

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

Images

Leaf

Dipterocarpus obtusifolius leaf picture by Triet Minh (cc-by-sa)
Dipterocarpus obtusifolius leaf picture by TeEphemeral (cc-by-sa)
Dipterocarpus obtusifolius leaf picture by TeEphemeral (cc-by-sa)

Distribution

Dipterocarpus obtusifolius world distribution map, present in China, India, Cambodia, Lao People's Democratic Republic, Myanmar, Malaysia, Thailand, and Viet Nam

Conservation status

Dipterocarpus obtusifolius threat status: Near Threatened

Identifiers

LSID urn:lsid:ipni.org:names:320727-1
WFO ID wfo-0000651386
COL ID 36QVT
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Dipterocarpus punctulatus Dipterocarpus vestitus Dipterocarpus obtusifolius var. glabricalyx Dipterocarpus obtusifolius var. subnudus Dipterocarpus obtusifolius var. vestitus Dipterocarpus obtusifolius