High Quality Content by WIKIPEDIA articles! Copernicia baileyana (yarey) is a palm which is endemic to eastern and central Cuba. Like other members of this genus, C. baileyana is a fan palm. Trees are 10 to 20 metres tall with stems 40 (to 60) centimetres in diameter and are sometimes swollen. The fruit is black, 1.8 to 2.3 centimetres long and 1.8 to 2 cm in diameter.