Smith, G.F. & Figueiredo, E. (2014)

State of our knowledge of online resources of the types of names of Agave L. (Agavaceae / Asparagaceae) with a list of names attributed to William Trelease, with notes on types, online resources and etymology

. Phytotaxa 170 (4): 221–249. https://doi.org/10.11646/phytotaxa.170.4.1