''Montrouziera cauliflora'', the giant Houp tree, is a species of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants t ...

in the family

Clusiaceae The Clusiaceae or Guttiferae Juss. (1789) (''nom. alt. et cons.'' = alternative and valid name) are a family (biology), family of plants including 13 genera and ca 750 species. Several former members of Clusiacae are now placed in Calophyllaceae ...

. It is found only in

New Caledonia ) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign st ...

, and is one of the largest trees in the rainforests there. It is found in moist evergreen dense forest of low and medium altitude (between 200 and 1100 m) on all types of soil. The tree has a straight trunk, slightly conical, without buttresses but with a slightly wider base, up to 30 m high and 3 m in diameter (bigger trees are often hollow), with branches protruding horizontally. Houp trees make fruit but it is not edible by humans. Damage causes the bark to exude a yellow resin, thick and sticky, with no peculiar smell. The bark is dark gray or reddish for individuals in very dense forest, with deep vertical cracks. Houp trees are sacred to New Caledonia's indigenous

Kanak people The Kanak (French language, French spelling until 1984: Canaque) are the Indigenous peoples of Oceania, indigenous Melanesians, Melanesian inhabitants of New Caledonia, an overseas collectivity of France in the southwest Pacific Ocean, Pacifi ...

, who traditionally used its wood extensively as a building material.Montrouziera cauliflora, endemia.nc
/ref> It is threatened by

habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...

References

cauliflora Endemic flora of New Caledonia Vulnerable plants Taxonomy articles created by Polbot {{Clusiaceae-stub