≡ Agave bicolor (E.Solano & García-Mend.) Thiede & Eggli Polianthes densiflora (B.L.Rob. & Fernald) Shinners ≡ Agave confertiflora Thiede & Eggli Polianthes durangensis Rose ≡ Agave palustris (Rose) Thiede & Eggli Polianthes elongata Rose ≡ Agave producta Thiede & Eggli Polianthes geminiflora (Lex.) Rose ≡ Agave coetocapnia subsp. coetocapnia Polianthes howardii Verh.-Will. ≡ Agave howardii (Verh.-Will.) Thiede & Eggli Polianthes longiflora Rose ≡ Agave dolichantha Thiede & Eggli Polianthes michoacana M.Cedano, Delgad. & Enciso ≡ Agave michoacana (M.Cedano, Delgad. & Enciso) Thiede & Eggli
Polianthes montana Rose ≡ Agave rosei Thiede & Eggli Polianthes multicolor E.Solano & Dávila ≡ Agave multicolor (E.Solano & Dávila) Thiede Polianthes nelsonii Rose ≡ Agave neonelsonii Thiede & Eggli Polianthes oaxacana García-Mend. & E.Solano ≡ Agave oaxacana (García-Mend. & E.Solano) Thiede Polianthes palustris Rose ≡ Agave palustris (Rose) Thiede & Eggli Polianthes platyphylla Rose ≡ Agave platyphylla (Rose) Thiede & Eggli Polianthes pringlei Rose ≡ Agave neopringlei Thiede & Eggli Polianthes sessiliflora (Hemsl.) Rose ≡ Agave