''Kokoona zeylanica'', known in Sinhala as කොකුන් (Kokun) is a species of plant in the family Celastraceae. It is not to be confused with the similar sounding word කොකුම් which stands for the Kokum plant. The genus was formerly classified in the family

Hippocrateaceae Hippocrateaceae Juss. previously consisted of about 150 tropical and subtropical species of shrubs and lianes, and is now included in the family Celastraceae. Formerly it comprised the following genera: * '' Anthodon'' * '' Apodostigma'' * '' Arni ...

.''Kokoona zeylanica''
i

/ref> It is endemic to

Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...

. It is extant at Adam's Peak and at Kanneliya. The species has been listed by the IUCN as threatened.

Description

The ''kokun'' is a large tree with a rough grey bark. It flowers from March to May.

Uses

The ''kokun'' is regarded as a medicinal plant traditionally used in a number of conditions. The seed oil from this plant is effective as a leech repellent. The inner bark has been used by jewellers as a polish.

References

Flora of Sri Lanka zeylanica {{Celastraceae-stub