Copyright 2000-2015 by Thomas Zinneman.  All rights reserved.

Palm Trees

Worldwide, the family Palmae is composed of over 230 genera and about 3000 species.  Only a few of these are indigenous to the continental United States, and most of these are restricted to the warmer regions of southern Florida and southern California.  However, a large number of exotic species have been imported for ornamental purposes and a few of these have become widely naturalized.

For identification purposes, palm trees can be divided into two major groups: those that have palmate or fan-shaped leaves and those that have pinnate, or feather-shaped leaves.  The palmate-leaved species are characterized by a leaf structure in which all leaf segments arise from a single point, similar to the structure of the human hand.  Pinnate leaves are characterized by leaves along each side of a central axis, similar in design to that of a feather.

   Palm, Cabbage