''Quercus elmeri'' is a species of

oak An oak is a hardwood tree or shrub in the genus ''Quercus'' of the beech family. They have spirally arranged leaves, often with lobed edges, and a nut called an acorn, borne within a cup. The genus is widely distributed in the Northern Hemisp ...

native to

Borneo Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda ...

Sumatra Sumatra () is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the list of islands by area, sixth-largest island in the world at 482,286.55 km2 (182,812 mi. ...

, and

Peninsular Malaysia Peninsular Malaysia, historically known as Malaya and also known as West Malaysia or the Malaysian Peninsula, is the western part of Malaysia that comprises the southern part of the Malay Peninsula on Mainland Southeast Asia and the list of isla ...

.''Quercus elmeri'' Merr.
''

Plants of the World Online Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew. History Following the Convention on Biological Diversity, the Royal Botanic Gardens in Kew launched Plants of the World Online i ...

'', Kew Science. Accessed 27 March 2023. It is placed in ''Quercus'' subgenus ''Cerris'', section ''Cyclobalanopsis''.

Description

''Quercus elmeri'' is a large tree, growing up to 50 meters high.

Range and habitat

''Quercus elmeri'' grows in lowland mixed dipterocarp rain forests and in submontane and lower montane forests on Sumatra, Borneo, and Peninsular Malaysia, from 150 to 1,800 metres elevation. It typically grows on basic and

ultrabasic Ultramafic rocks (also referred to as ultrabasic rocks, although the terms are not wholly equivalent) are igneous and meta-igneous rocks with a very low silica content (less than 45%), generally >18% MgO, high FeO, low potassium, and are usual ...

soils and on poor sandy soils on hillsides and ridges. It is an emergent tree in undisturbed forests, growing above the main canopy.

References

elmeri Trees of Borneo Trees of Sumatra Trees of Peninsular Malaysia Flora of the Borneo lowland rain forests Flora of the Borneo montane rain forests Plants described in 1929 Taxa named by Elmer Drew Merrill {{Quercus-stub