It is known that 75 of the 151 species of Agavaceae in Mexico have a restricted distribution in areas that once served as ecological islands, or refugia.    From Wordnik.com.  [Tehuacán Valley matorral] Reference

Formerly classified as Liliaceae, but more recently placed in the new family Agavaceae - are found in the southwestern (and, to some extent, southeastern) United States, Mexico and the West Indies.    From Wordnik.com.  [Mother Earth News Latest 10 Articles] Reference

Formerly classified as Liliaceae, but more recently placed in the new family Agavaceae - are found in the southwestern (and, to some extent, southeastern) United States, Mexico, and the West Indies.    From Wordnik.com.  [Mother Earth News Latest 10 Articles] Reference

Family: Agavaceae.    From Wordnik.com.  [Ponytail palm, croton and dwarf poinciana: ornamental plants and flowers of tropical Mexico] Reference

Plant Family / Families: Agavaceae.    From Wordnik.com.  [Museum Blogs] Reference