Group of coned, seed-bearing plants. Cycads are among the oldest of the land plants. They are known to have lived in the Permian, over 200 million years ago (before the age of dinosaurs) and they covered much of the earth in the Mesozoic Era. Today they are found only in tropical and subtropical regions of the world. There are about 250 species in 11 genera. Cycad plants resemble palms or tree-ferns in overall appearance.
The Cycad Pages
Extensive botanical database on the known cycads, including identification and classification, ecology and conservation, cycad evolution and the fossil record, geography and distribution, and horticultural information.
Free to use horticultural and conservation research tool with an up-to-date list of all the world's Cycad species.
Introduction to the Cycads
An excellent place to begin learning about the Cycads
PACSOA - Cycads
Includes many articles, detailed species accounts, and images. From the Palm and Cycad Societies of Australia (PACSOA).
University of Georgia Greenhouses - Non-flowering Plants
Includes images of the cycad collection.
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Last update:September 2, 2015 at 7:15:12 UTC