(A.Castañeda – Mexico (México State) Agave garciae-mendozae Galván & L.Hern. - Hidalgo Agave geminiflora (Tagl.) Ker Gawl. - Nayarit Agave gentryi B.Ullrich - Nuevo León, Querétaro Agave ghiesbreghtii Lem. ex Jacobi - Mexico, Guatemala Agave gigantensis Gentry - Sierra de la Giganta in Baja California Sur Agave gilbertii A.Berger - Mexico Agave × glomeruliflora (Engelm.) A.Berger = A. havardiana × A. lechuguilla - Coahuila, western Texas Agave gomezpompae Cházaro & Jimeno-Sevilla - Veracruz Agave gracielae Galvan & Zamudio – Mexico (Querétaro) Agave gracilipes Trel. – Maguey de pastizal, Slimfoot Century Plant - Chihuahua, southern New Mexico, western Texas Agave gracillima A.Berger – Mexico (Durango, Jalisco, Nayarit) Agave graminifolia (Rose) Govaerts & Thiede – NE. Mexico (to Jalisco) Agave grisea Trel. - Cuba Agave guadalajarana Trel. – Maguey chato - Jalisco, Nayarit Agave guerrerensis (Matuda) G.D.Rowley – Mexico (Guerrero) Agave guiengola Gentry - Oaxaca Agave guttata Jacobi & C.D.Bouché – NE. Mexico (to Jalisco) Agave gypsophila Gentry - Colima, Guerrero, Jalisco H Agave harrisii Trel. - Jamaica Agave hauniensis J.B.Petersen – C. Mexico (to Guerrero) Agave havardiana Trel. – Havard's Century Plant, Chisos Agave, Maguey de Havard - Chihuahua, Coahuila, Texas Agave hiemiflora Gentry - Chiapas, Guatemala Agave hookeri Jacobi - Jalisco, Michoacán Agave horrida Lem. ex Jacobi - Morelos, Veracruz, Oaxaca Agave howardii (Verh.-Will.) Thiede & Eggli – Mexico (Jalisco, Colima) Agave hurteri Trel. - Guatemala I–J Agave impressa Gentry - Sinaloa Agave inaequidens K.Koch - Mexico Agave inaguensis Trel. - Bahamas (Inagua), Turks & Caicos Islands Agave indagatorum Trel. - Bahamas (Watling Island) Agave intermixta Trel. - Haiti Agave involuta (McVaugh) Thiede & Eggli – Mexico (S. Zacatecas, SE. Nayarit, Jalisco) Agave isthmensis A.García-Mend. & F.Palma - Oaxaca, Chiapas Agave jaiboli Gentry - Sonora, Chihuahua Agave jaliscana (Rose) A.Berger – W. Mexico (to Durango) Agave jarucoensis A.Álvarez - Cuba Agave jimenoi Cházaro & A.Vázquez – Mexico (Veracruz) Agave justosierrana (García-Mend.) Thiede – Mexico (Guerrero) K–L Agave karatto Mill. - Lesser Antilles, Netherlands Antilles Agave karwinskii Zucc. - Oaxaca, Puebla Agave kavandivi García-Mend. & C.Chávez – Mexico (Oaxaca) Agave kerchovei Lem. - Hidalgo, Oaxaca, Puebla Agave kewensis Jacobi - Chiapas Agave kristenii A.Vázquez & Cházaro – Mexico (Michoacán) Agave lagunae Trel. - Guatemala (Amatitlan) Agave lechuguilla Torr. – Agave lecheguilla, Lecheguilla, Lechuguilla, Maguey lechuguilla - northern Mexico, New Mexico, Texas Agave × leopoldii W.Watson – AGM Agave littoralis (García-Mend. – Mexico (Guerrero, Oaxaca) Agave longibracteata (Verh.-Will.) Thiede & Eggli –