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

Description
Roystonea violacea is a large palm which reaches heights of .  Stems are mauve-brown to mauve-grey and are about  in diameter.  The upper portion of the stem is encircled by leaf sheaths, forming a green portion known as the crownshaft which is normally  long.  Individuals have about 15 leaves with  petioles and  rachises; the leaves hang well horizontal.  The  inflorescences bear violet male and female flowers.  Fruit are  long and  wide, and are brown to black when ripe.

References

Trees of Cuba
violacea
Endangered plants