Dipterocarpus obtusifolius

Clade:Tracheophytes

Clade:Angiosperms

Clade:Eudicots

Clade:Rosids

Dipterocarpus obtusifolius
Foliage and flowers
Conservation status
Near Threatened (IUCN 3.1)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Malvales
Family:	Dipterocarpaceae
Genus:	Dipterocarpus
Species:	D. obtusifolius
Binomial name
Dipterocarpus obtusifolius Teijsm. ex Miq.[2]
Synonyms[2]
Dipterocarpus obtusifolius var. cuspidatus C.E.C.Fisch. Dipterocarpus obtusifolius var. glabricalyx Smitinand Dipterocarpus obtusifolius var. subnudus Ryan & Kerr Dipterocarpus obtusifolius var. vestitus (Wall. ex Dyer) Smitinand Dipterocarpus punctulatus Pierre Dipterocarpus vestitus Wall. ex Dyer

Dipterocarpus obtusifolius is a species of tree in the family Dipterocarpaceae found throughout Southeast Asia, including Andaman Islands, Myanmar, Thailand, Cambodia, Laos and Vietnam.^[3][4]

Four varieties have been described – D. o. var. cuspidatus, D. o. var. subnudus, D. o. var. glabricalyx, and D. o. var. vestitus – but all are now considered to be synonyms.^[2] The variety D. o. var. subnudus differed by having completely hairless leaves and is found only in the south of Cambodia, Vietnam and Thailand.^[4]

Trees are large, up to 30m tall, grow in dry dipterocarp forest, and the red brown wood is used in general construction.^[3] In Cambodia, the resin from the tree is used to make torches, drinking water was obtained by cutting young stalks and the wood gave boards regarded as non-durable in construction,^[4] while in some areas of the Kompong Chhnang Province it is an important firewood source.^[5]