Puerto Rican royal palm


The Puerto Rican royal palm is native to Hispaniola, Puerto Rico, and St. Croix. It reaches a height of 60 feet, with a grayish smooth trunk up to 2 feet  in diameter, frequently wider at the base and near the middle of the palm. The leaves are up to 12 feet long and are composed of many slender leaflets distributed in several rows. Inflorescences arise below the lowest leaf and are up to 5 feet long. Ripe fruits are brownish-red, about half an inch long; the seeds are surrounded by a yellowish oily liquid sought after by birds that disperse the seeds. It flowers and produces fruits throughout the year. The generic name remembers General Roy Stone (1836-1905), who participated in the invasion of the island. The species name refers to its geographic origin, being Borinquen or Boriquen the taino name for Puerto Rico.

The photographed palm is behind the Physics Building. The royal palm is very abundant throughout the campus and there are specimens near most buildings.

Roystonea  borinquena (Arecaceae)