- Agave L.
- Agave ?ajoensis W.C. Hodgson [deserti Xschottii]
- Agave americana L.
- Agave americana L. ssp. americana
- Agave americana L. ssp. americana var. americana
- Agave americana L. ssp. americana var. expansa (Jacobi) Gentry
- Agave americana L. ssp. protamericana Gentry
- Agave americana L. var. marginata Trel. [excluded]
- Agave americana L. var. mediopicta Trel. [excluded]
- Agave americana L. var. striata Trel. [excluded]
- Agave angustifolia Haw.
- Agave ?arizonica Gentry & J.Z. Weber (pro sp.) [chrysantha ? toumeyana]
- Agave arizonica Gentry & J.H. Weber [hybrid]
- Agave asperrima Jacobi
- Agave atrovirens Karw. ex Salm-Dyck
- Agave cantala Roxb.
- Agave chrysantha Peebles
- Agave palmeri Engelm. var. chrysantha (Peebles) Little ex L. Benson
- Agave cupreata Trel. & Berger
- Agave decipiens Baker
- Agave delamateri W.C. Hodgson & L. Slauson
- Agave deserti Engelm.
- Agave deserti Engelm. ssp. deserti
- Agave consociata Trel.
- Agave deserti Engelm. ssp. simplex Gentry
- Agave deserti Engelm. var. simplex (Gentry) W.C. Hodgson & Reveal
- Agave desmettiana Jacobi
- Agave eggersiana Trel.
- Agave fourcroydes Lemaire
- Agave glomeruliflora (Engelm.) Berger
- Agave chisosensis C.H. Muller
- Agave gracilipes Trel.
- Agave havardiana Trel.
- Agave lechuguilla Torr.
- Agave lophantha Schiede var. poselgeri (Salm-Dyck) Berger
- Agave missionum Trel.
- Agave portoricensis Trel.
- Agave murpheyi F. Gibson
- Agave neglecta Small
- Agave palmeri Engelm.
- Agave parryi Engelm.
- Agave parryi Engelm. ssp. neomexicana (Woot. & Standl.) Ullrich
- Agave neomexicana Woot. & Standl.
- Agave parryi Engelm. ssp. parryi
- Agave huachucensis Baker
- Agave parryi Engelm. var. couesii (Engelm. ex Trel.) Kearney & Peebles
- Agave parryi Engelm. var. huachucensis (Baker) Little ex L. Benson
- Agave scabra Salm-Dyck
- Agave parviflora Torr.
- Agave phillipsiana W.C. Hodgson
- Agave rigida P. Mill.
- Agave rigida P. Mill. var. rigida
- Agave schottii Engelm.
- Agave schottii Engelm. var. schottii
- Agave schottii Engelm. var. treleasei (Toumey) Kearney & Peebles
- Agave shawii Engelm.
- Agave sisalana Perrine
- Agave rigida P. Mill. var. sisalana (Perrine) Engelm.
- Agave tequilana A. Weber
- Agave toumeyana Trel. ex Standl.
- 