Skip to page content
USDA Forest Service

Research & Development Treesearch

Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help - We Participate  Government Made Easy

Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (180 KB)

Title: Roystonea regia (Kunth) O.F.

Author: Connor, K.F.;

Date: 2002

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)

Description: Roystonea 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.

Keywords: Roystonea regia, species description, seed research

Publication Notes:

  • 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.
  • You may send email to to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)



Connor, 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.


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.