Biology:Dipterocarpus retusus

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Short description: Species of tree

Dipterocarpus retusus
from Koehler's Medicinal-Plants (1887)
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Dipterocarpaceae
Genus: Dipterocarpus
Species:
D. retusus
Binomial name
Dipterocarpus retusus
Synonyms[2]
  • Dipterocarpus austroyunnanicus Y.K.Yang & J.K.Wu
  • Y.K.Yang & J.K.Wu King ex Kanjal, P.C.Kanjal & D.Das
  • (A.Chev.) Y.K.Yang & J.K.Wu Dipterocarpus retusus var. yingjiangensis
  • Dipterocarpus pubescens Y.K.Yang & J.K.Wu
  • Dipterocarpus macrocarpus Koord. & Valeton
  • Blume Blume
  • Dipterocarpus spanoghei var. cordata Dipterocarpus retusus var. macrocarpus
  • Burck Dipterocarpus luchunensis
  • Vesque (Vesque) P.S.Ashton
  • A.Chev. Dipterocarpus spanoghei
  • Dipterocarpus trinervis Dipterocarpus retusus subsp. macrocarpus
  • Blume Dipterocarpus trinervis var. canescens
  • Dipterocarpus mannii (Vesque) Y.K.Yang & J.K.Wu
  • Blume Dipterocarpus tonkinensis
  • Dipterocarpus trinervis var. elegans Dipterocarpus retusus subsp. tonkinensis
Sapling at Hoollongapar Gibbon Sanctuary, Assam

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 south-central China (western and southeastern Yunnan), Vietnam, the Philippines, Laos, Cambodia, Peninsular Malaysia, Indonesia (Sumatra, Java, and the Lesser Sunda Islands), Myanmar, and northeastern India.[2][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) elevation.[4]

In Vietnam

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.

Uses

It is farmed for its timber and resin. In Cambodia, the resin is collected by people in the mountainous regions, in order to make torches and candles, while the wood is used in construction to make columns and boards.[4]

References

  1. 1.0 1.1 1.2 Ly, V.; Nanthavong, K.; Pooma, R.; Luu, H.T.; Nguyen, H.N.; Vu, V.D.; Hoang, V.S.; Khou, E. et al. (2017). "Dipterocarpus retusus". IUCN Red List of Threatened Species 2017. doi:10.2305/IUCN.UK.2017-3.RLTS.T32400A2817693.en. https://www.iucnredlist.org/species/32400/2817693. Retrieved 19 November 2021. 
  2. 2.0 2.1 2.2 "Dipterocarpus retusus Blume". Plants of the World Online. Royal Botanic Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:320751-1. 
  3. {{citation | mode = cs1 | title = Dipterocarpus retusus | work = Germplasm Resources Information Network (GRIN) | url = | publisher = [[Organization:Agricultural Research ServAgricultural Research Service (ARS), United States Department of Agriculture (USDA) | access-date = 18 April 2019 }}
  4. 4.0 4.1 4.2 DY PHON, Pauline, 2000, Plants Used In Cambodia, printed by Imprimerie Olympic, Phnom Penh
  5. "State Trees and Flowers of India". http://flowersofindia.net/misc/state_flora.html. 

Wikidata ☰ Q3006795 entry