The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.
- Cactus Journal [London] 2: 50. 1899. (Cact. J. (London))
- Shreve, F. & I. L. Wiggins. 1964. Veg. Fl. Sonoran Des. 2 vols. Stanford University Press, Stanford.
EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.
To request an improvement, please leave a comment on the page. Thank you!