Dipterocarpus retusus

Dipterocarpus retusus
from Koehler's Medicinal-Plants (1887)
Conservation status
Endangered  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Malvales
Family:	Dipterocarpaceae
Genus:	Dipterocarpus
Species:	D. retusus
Binomial name
Dipterocarpus retusus Blume[2]
Synonyms[2]
Dipterocarpus macrocarpus Vesque Dipterocarpus mannii King ex Kanjal, P.C.Kanjal & D.Das Dipterocarpus pubescens Koord. & Valeton Dipterocarpus spanoghei Blume Dipterocarpus tonkinensis A.Chev. Dipterocarpus trinervis Blume

Dipterocarpus retusus, commonly known as hollong,^[3] is a large tree and perhaps the best known species in the genus Dipterocarpus. It is native to China, Vietnam, Philippines, Laos, Cambodia, Malaysia, Indonesia, Myanmar, and India.^[1][4] The tree, some 20–30 metres (70–100 ft) tall, is found in Cambodia in dense forests of the plains, common on hillsides and along rivers and in forests between 800 m (2,600 ft) and 1,500 m (5,000 ft) altitude.^[4]

Hollong is the state tree of Assam and Arunachal Pradesh, India.^[5] In India, the timber is used for plywood and making various containers. In China, the timber is used in construction.^[1] Hollong is a sacred tree for Moran community of Assam.^{[citation needed]}