''Trigonobalanus verticillata'' is a species of
plant
Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclu ...
in the family
Fagaceae. It is a tree native to
Borneo
Borneo (; id, Kalimantan) is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java, west of Sulawesi, and ea ...
,
Sumatra,
Sulawesi, the
Malay Peninsula, and
Hainan
Hainan (, ; ) is the smallest and southernmost province of the People's Republic of China (PRC), consisting of various islands in the South China Sea. , the largest and most populous island in China,The island of Taiwan, which is slightly l ...
.
Description
''Trigonobalanus verticillata'' is a tree which grows 10 to 20 meters tall. The trunk has a diameter of 30 to 70 cm at breast height. It fruits between October and March.
[
]
Range and habitat
''Trigonobalanus verticillata'' is native to the highlands of Borneo, Sumatra, Sulawesi, the Malay Peninsula, and Hainan.[
It is found in tropical montane rain forest and evergreen broadleaf forest in Indonesia and Malaysia, and in tropical moist monsoon forest on Hainan, between 900 and 2,000 meters elevation.][
On Hainan its often found with the trees '' Castanopsis tonkinensis, Lithocarpus fenzelianus, Liquidambar obovata'', and '' Dacrydium pectinatum''.][
]
Conservation
The species' conservation status is assessed as near threatened
A near-threatened species is a species which has been categorized as "Near Threatened" (NT) by the International Union for Conservation of Nature as that may be vulnerable to endangerment in the near future, but it does not currently qualify f ...
. It is threatened with habitat loss and fragmentation from deforestation, and its population is declining.[
]
References
{{Authority control
Fagaceae
Flora of Malesia
Flora of Hainan