Ficus carrii is a rare Borneo endemic root climbing fig liana confined to mountain forests in Sabah, North Borneo.
Ficus carrii is locally common in the virgin forests surrounding Mount Kinabalu Park HQ, Sabah.
However it is very difficult to find the large hairy fruits which are produced at canopy level.
Fortunately, F. carrii fig lianas can be recognized from the distinctive leaves which can be easily found growing up tree trunks in the mountain forest.
As with several other Bornean figs such as Ficus punctata and Ficus ruginervia the undersurface of leaves is foveolate which means the surface is covered with tiny holes.
Although it is impossible to see the holes without a microscope, foveolate leaves can be recognized from the distinctive pattern shown on the underside of the leaf in the photograph below.
