Agave asperrima ssp. maderensis
Agave asperrima ssp. potosiensis
Agave asperrims ssp. zarcensis
Agave aurea v. capensis (name unresolved)
Agave azurea (name unresolved)
Agave ghiesbreghtii Purpusorum
Agave gomezpompae (name unresolved)
Agave kavandivi (name unresolved)
Agave kristenii (name unresolved)
Agave parvidentata Volc. Santa Ana El Salvador
Agave parviflora Ruby Az. cit (not to USA)
Agave salmiana ssp. crassispina
Agave shrevei ssp. magna (ssp. unresolved)
Agave shrevei ssp. matapensis (ssp. unresolved)
Agave sobria ssp. frailensis (ssp. unresolved)
Agave striata ssp. falcata Blue
Agave temacapulinensis (name unresolved)
Agave utahensis ssp. kaibabensis
Agave victoriae-reginae Huasteca Canyon
Argyroderma framesii ssp. hallii
Camassia leichtlinii ssp. suksdorfii Caerulea Grou