Skip to Main Content
Roystonea regia (Kunth) O.F.Author(s): K.F. Connor
Source: In: Vozzo, J.A. Tropical Tree Seed Manual. Agric. Handbook 721. Washington, DC: U.S. Department of Agriculture, Forest Service: 698-700.
Publication Series: Paper (invited, offered, keynote)
Station: Southern Research Station
PDF: View PDF (180.11 KB)
DescriptionRoystonea regia is a rapidly growing tree that can reach 15-34.5 m in height and 61 cm in diameter. The stout, smooth trunk is not always straight, and many short air roots are attached at the base. It is primarily valued as an ornamental. The seeds contain oil which is sold commercially or used for livestock feed. The leaves are used for thatching, and the wood can be used for construction. Flowers develop from buds formed on the trunk below the leaves. The fragrant flowers are borne on a many-branched panicle. Both the male and the female flowers form on the same panicle, with male flowers of each tree opening and falling before the female flowers to prevent self fertilization. Generally, each female flower forms between two male flowers on the panicle. The violet-purple fruits are smooth, ovate, and measure 13 mm in length. Each fruit bears a single light brown, thin, seed embedded in brown fibrous flesh. In Florida, trees flower in the spring and fruits mature in the fall. In Puerto Rico, birds or bats often feed on the oily pericarp; if seeds are shed with pericarp intact, detritis-eating animals clean the seed when rotting is well advanced, leaving only a papery shell that is easily removed. Thus large quantities of cleaned seeds can be collected from the ground under seed-bearing trees.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationConnor, K.F. 2002. Roystonea regia (Kunth) O.F. Cook. In: Vozzo, J.A. Tropical Tree Seed Manual. Agric. Handbook 721. Washington, DC: U.S. Department of Agriculture, Forest Service: 698-700.
KeywordsRoystonea regia, species description, seed research
- Roystonea borinquena O.F.
- Roystonea O.F. Cook
- Plant guide: Rocky Mountain penstemon (Penstemon strictus) [Revised 2014].
XML: View XML