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Trigonobalanus excelsa

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Trigonobalanus excelsa
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Fagaceae
Genus: Trigonobalanus
Species:
T. excelsa
Binomial name
Trigonobalanus excelsa
Loz.-Contr., Hern.Com .&Henao-S.

Trigonobalanus excelsa, commonly called the Colombian black oak,[2] is a species of plant in the family Fagaceae. It is a tree endemic to Colombia.

The genus Trigonobalanus is related to the true oaks (Quercus) and includes three known species, T. excelsa and two species native to Southeast Asia.[1]

Description

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Trigonobalanus excelsa is a tree which can grow to 20–40 m (66–131 ft) tall.[1]

Range and habitat

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Trigonobalanus excelsa is known from five locations in the Colombian Andes. These locations are on different mountain ranges and distant from one another. The species' estimated area of occupancy (AOO) is less than 500 km2.[1]

It grows in humid Andean montane forests between 1,400- and 2,200-meters elevation. It is found in mixed forests and in monospecific stands, typically in areas with steep slopes and poor soils. Some populations grow near forests of white oak (Quercus humboldtii).[1]

Conservation

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The species' conservation status is assessed as endangered. It is known from relatively small and isolated populations. Some populations are in protected areas. The main population in Huila is not protected and is threatened with habitat loss from ongoing deforestation. Other populations, like those in Antioquia and Bolivar departments, have been greatly reduced by deforestation, and survive only in remnant forest patches.[1]

References

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  1. ^ a b c d e f Aguirre-Acosta, N.; Parra Aldana, C.A.; Botero, J.E. (2020). "Trigonobalanus excelsa". IUCN Red List of Threatened Species. 2020: e.T32076A137102918. doi:10.2305/IUCN.UK.2020-1.RLTS.T32076A137102918.en. Retrieved 4 February 2023.
  2. ^ "In situ conservation of the Colombian Black Oak". August 25, 2021.