Roystonea maisiana

Roystonea maisiana is a species of palm which is endemic to the Maisí region of Guantánamo Province in eastern Cuba.

Description
Roystonea maisiana is a large palm which reaches heights of 20 m. Stems are grey-white and are usually 26 - 40 cm, sometimes up to 51 cm, in diameter. The upper portion of the stem is encircled by leaf sheaths, forming a green portion known as the crownshaft which is normally 1.5 m long. Individuals have about 15 leaves with 4.8 m rachises; the leaves hang well horizontal. The 0.8 - 1.1 m inflorescences bear white male and female flowers. Fruit are 10 - 13.7 mm long and 7.5 - 9.5 mm wide, and black when ripe.