Cacti of Texas, a Field Guide, Powell, Weedin and Powell, Texas Tech University Press,

Texas Cacti, Loflin, Brian and Shirley, Texas A &M University Press, 2009

Cacti of Texas and Neighboring States: A Field Guide, Weninger, University of Texas Press, 1984

Common Woody Plants and Cacti of South Texas, Taylor, UT Press, 2014

Agaves, Yucca and Their Kin, Seven Genera of the Southwest, Hawker, TTU Press, 2016