Provides a listing of species in this family. With links to related sites.

Provides taxonomic information on this family. With links to related sites.

Offers images of species in this family.

Describes the distinguishing characteristics of this family. With illustrations.

Provides a listing and general characteristics of species in this family.

Evergreen shrub with possible benefits for treating asthma and other components of the respiratory system.

Presents a study by Dennis Wm. Stevenson on this family. With links to related sites.

Provides access to images of member species.

Offers basic information on the species in this family.

Provides basic information on this plant group. With links.

Details subgroups within this plant family.

Presents an abstract of the paper by Yong Yang, Bao-Yin Geng, David L. Dilcher, Zhi-Duan Chen and Terry A. Lott.

Provides taxonomic information on this family. With related links.

Presents an abstract of the article by Caveny S, Charlet DA, Freitag H, Maier-Stolte M and Starratt AN.

Presents an abstract of the article by Yong Yang. The title of the article is "A new species of Ephedra L. (Ephedraceae) from Sichuan, China with a note on its systematic significance.".

Provides a listing of member species. With links.

Presents a synopsis of an article by Stefanie M. Ickert-Bond.

Offers images of member species. With links to related sites.

Offers access to images of species in this family.

Provides a listing of species within this family.