The cycads are members of an ancient and very distinct natural group
botanically known as the
This group has been divided into three families and 11 genera.
A key distinguishing families and genera is at the foot of this page,
and each family and genus has its separate home page. Each genus page has
links for all accepted species in that genus and keys to identify them.
distribution are discussed on other separate pages.
You can also search the
World List of Cycads for any cycad name.
The following detailed classification
aims to accurately reflect
inferred evolutionary relationships
among the living cycads.