Agavaceae - Choice of Species

All ever published plants of the genus AGAVE
(synonyms=*, taxonomically unresolved=?)

Please choose from the following list of species which data should be displayed. The colored blocks in front of the plant names have the following meaning:
"RED" = recently described plant
"GREEN" = new description(s) added and
"BLUE" = new pictures added to the database.
The blocks are marked with "year-month", the date of registration. The species names marked with an asterisk ("*") are synonyms of other species - in this case the data of the scientifically correct species name is shown upon clicking. The species names marked with a question mark ("?") are taxonomically unresolved but referred to this genus. It is possible to jump directly to the alphabetic code of the species name. Please see the hints before using this data base (see main page link). Enjoy!

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

A

Agave abisaii A.Vázquez & Nieves (2013)

*Agave aboriginum Trelease (1907)

?Agave abortiva Terracciano (1885)

*Agave abrupta Trelease (1920)

Agave acicularis Trelease (1913)

Agave acklinicola Trelease (1913)

*Agave acuispina Trelease (1925)

*Agave affinis Trelease (1911)

Agave ×ajoensis W.C. Hodgson (2001)

Agave aktites Gentry (1972)

Agave albescens Trelease (1913)

*Agave albicans Jacobi (1865)

Agave alboaustralis (E. Solano & Ríos-Gómez) (E. Solano & Ríos-Gómez) Thiede (2015)

*Polianthes alboaustralis E. Solano & Ríos-Gómez (2014)

Agave albomarginata Gentry (1982)

Agave albopilosa I. Cabral, Villarreal & A.E. Estrada (2007)

*Agave alibertii Baker (1883)

Agave aloides Jacobi (1866)

*Agave aloina Koch (1860)

*Agave altissima Zumaglini (1864)

*?Agave amaniensis Trelease & Nowell (1933)

*Agave americana Urban (1903)

*Agave americana Millspaugh (1900)

*Agave americana Dillenius (1774)

?Agave americana Griesebach (1864)

*Agave americana Lamarck (1783)

*Agave americana Sagra (1850)

*Agave americana Humboldt (1808)

?Polianthes americana Sessé & Moçiño (1888)

*Agave americana nairobensis Herbin & Robins (1968)

Agave americana ssp. americana Linné (1753)

Agave americana ssp. protoamericana Gentry (1982)

*Agave americana var. coccinea (Roezl ex Jacobi) Terracciano (1885)

Agave americana var. expansa (Jacobi) Gentry (1972)

*Agave americana var. franzosinii Sprenger (1885)

*Agave americana var. latifolia Torrey (1859)

*Agave americana var. marginata Trelease (1914)

*Agave americana var. marginata alba Trelease (1914)

*Agave americana var. marginata aurea Trelease (1914)

*Agave americana var. marginata pallida Trelease (1914)

*Agave americana var. medio-picta Trelease (1914)

Agave americana var. oaxacensis Gentry (1982)

*Agave americana var. picta (Salm-Dyck) Terracciano (1885)

*Agave americana var. striata Trelease (1914)

*Agave americana var. theometel (Zuccagni) Terracciano (1885)

Agave amica (Medikus) Thiede & Govaerts (2017)

*Tuberosa amica Medikus (1790)

*Agave amoena Hort. ex Lemaire ex Jacobi (1865)

*Agave amurensis Jacobi (1864)

*Agave ananassoides De Jonghe & Jacobi (1868)

Agave andreae Sahagún & A. Vázquez (2013)

Agave angustiarum Trelease (1920)

*Manfreda angustifolia Rose

Agave angustifolia var. angustifolia Haworth (1812)

*Agave angustifolia var. deweyana (Trelease) Gentry (1982)

Agave angustifolia var. letonae (Taylor ex Trelease) Gentry (1982)

Agave angustifolia var. marginata Hort. ex Gentry (1982)

Agave angustifolia var. nivea (Trelease) Gentry (1982)

*Agave angustifolia var. rubescens (Salm-Dyck) Gentry (1982)

Agave angustifolia var. sargentii Trelease (1912)

Agave angustifolia var. variegata Trelease (1908)

*Crinum angustifolium Houttuyn (1780)

*Agave angustissima Engelmann (1875)

*Agave angustissima var. ortgiesiana Trelease (1920)

Agave anomala Trelease (1913)

Agave antillarum var. antillarum Descourtilz (1827)

Agave antillarum var. grammontensis Trelease (1927)

Agave apedicellata Thiede & Eggli (1999)

Agave applanata Koch ex Jacobi (1864)

*Agave applanata var. huachucensis (Baker) Mulford (1896)

*Agave applanata var. parryi (Engelmann) Mulford (1896)

Agave arcedianoensis Cházaro, O. Valencia & A. Vázquez (2007)

Agave ×arizonica Gentry & Weber (1970)

*?Agave ×armata Hort. ex Berger (1915)

*Agave artichaut Hort. C. Besserer ex Berger (1915)

Agave arubensis Hummelinck (1936)

?Agave aspera Terracciano (1885)

*Agave asperrima Jacobi (1864)

Agave asperrima ssp. asperrima Jacobi (1864)

Agave asperrima ssp. maderensis (Gentry) Ullrich (1992)

Agave asperrima ssp. potosiensis (Gentry) Ullrich (1992)

Agave asperrima ssp. zarcensis (Gentry) Ullrich (1992)

*Agave atrovirens Neubert (1867)

Agave atrovirens var. atrovirens Karwinsky ex Salm-Dyck (1834)

Agave atrovirens var. mirabilis (Trelease) Gentry (1982)

*Agave atrovirens var. sigmatophylla Berger (1915)

*Agave attenuata Salm-Dyck (1834)

Agave attenuata ssp. attenuata Salm-Dyck (1834)

Agave attenuata ssp. dentata Ullrich (2006)

*Agave attenuata var. brevifolia Jacobi ex Terracciano (1885)

*Agave attenuata var. compacta Jacobi (1865)

*Agave attenuata var. latifolia Salm-Dyck ex Terracciano (1885)

*Agave attenuata var. serrulata Terracciano (1885)

*Agave attenuata var. subdentata Hort. Hoopes ex Trelease (1892)

Agave aurea ssp. aurea Brandegee (1889)

N 23-09

Agave aurea ssp. promontorii (Trelease) R.H. Webb & G.D. Starr (2015)

N 23-09

Agave aurea var. capensis (Gentry) R.H. Webb & G.D. Starr (2015)

*Agave auricantha Hort. ex Baker (1877)

Agave avellanidens Trelease (1911)

Agave azurea R.H. Webb & G.D. Starr (2014)

B

Agave bahamana Trelease (1913)

*Agave bakeri Ross (1894)

*Agave bakeri W. Watson (1902)

?Agave banlan Perrotet (1824)

*Agave barbadensis Trelease (1913)

?Agave baxteri Baker (1888)

*Agave beaucarnei Lemaire (1864)

*Agave beaulueriana Jacobi (1868)

?Agave ×beguinii Hort. ex Berger (1912)

?Agave bennetii Hort. ex Berger (1915)

*Agave bergeri Trelease ex Berger (1915)

?Agave bernhardii Jacobi (1868)

*Agave bessereriana van Houtte (1868)

*Agave besseriana Hooker (1871)

*Agave besseriana De Smet ex Jacobi (1865)

*Agave besseriana candida Jacobi (1870)

*Agave besseriana hystrix Jacobi (1871)

*Agave besseriana longifolia glauca Jacobi (1869)

*Agave besseriana longifolia viridis Jacobi (1869)

Agave bicolor (Solano & García-Mendoza) Thiede & Eggli (2001)

*Polianthes bicolor Solano & García-Mendoza (1998)

Agave ×blissii (Worsley) Thiede & Eggli (1999)

*Polianthes ×blissii Worsley (1911)

Agave boldinghiana Trelease (1913)

*?Agave bollii Terracciano (1885)

*Agave bollii var. celsii (Hooker) Terracciano (1885)

*Agave bonnetiana Peacock ex Baker (1877)

?Agave bonnetii Hort. ex Berger (1915)

*Agave boscii (Hornemann) Anonymous (2013)

*Dracaena boscii Hort. Cels ex Zeyher (1818)

*Yucca boscii Hort. Panorm. ex Hornemann (1813)

*Yucca boscii Desfontaines (1815)

*Agave botterii Hemsley (1876)

*Agave bouchei Jacobi (1865)

*Agave bourgaei Trelease (1920)

Agave bovicornuta Gentry (1942)

Agave braceana Trelease (1913)

*Agave brachystachys Cavanilles (1802)

*Manfreda brachystachys (Cavanilles) Rose (1903)

*Polianthes brachystachys (Cavanilles) Shinners (1966)

*Agave brachystachys var. pubescens (Regel & Ortgies) Terracciano (1885)

*Agave brachystachys var. strictior Jacobi & Bouché (1865)

Agave bracteosa S. Watson ex Engelmann (1882)

*Agave brandegeei Trelease (1911)

*?Agave brauniana Jacobi (1866)

*Agave breedlovei Gentry (1982)

Agave brevipetala Trelease (1927)

*Agave breviscapa Berger ex Roster (1916)

Agave brevispina Trelease (1927)

Agave brittoniana ssp. brachypus (Trelease) Álvarez (1996)

Agave brittoniana ssp. brittoniana Trelease (1913)

Agave brittoniana ssp. sancti-spirituensis Álvarez (1996)

*Agave brittoniana var. brachypus Trelease (1913)

?Agave bromeliaefolia Salm-Dyck (1834)

Agave brunnea S. Watson (1891)

*Manfreda brunnea (S. Watson) Rose (1903)

*Polianthes brunnea (S. Watson) Shinners (1966)

*Agave bulbifera Salm-Dyck (1834)

Agave bulbulifera (Castillejos & E. Solano) Thiede (2012)

*Manfreda bulbulifera Castillejos & E. Solano (2008)

Agave bulliana (Baker) Thiede & Eggli (1999)

*Bravoa bulliana Baker (1884)

*Prochnyanthes bulliana (Baker) Baker (1895)

Agave ×bundrantii (Howard) Thiede & Eggli (1999)

*Polianthes ×bundrantii Howard (1978)

C

Agave cacozela Trelease (1913)

*Agave caeciliana Berger (1915)

*Agave caespitosa Todaro (1877)

Agave cajalbanensis Álvarez (1981)

Agave calciphila G. Starr (2020)

?Agave calderonii Trelease (1923)

*Agave californica Jacobi (1868)

*Agave californica Baker (1877)

Agave calodonta Berger (1912)

*Agave campaniflora Trelease (1912)

*Agave canartiana Jacobi (1868)

*Agave canartiana var. laevior Jacobi (1868)

*Agave candelabrum Todaro (1878)

*Furcraea cantala (Roxbourgh) Voigt (1845)

Agave cantala var. acuispina (Trelease) Gentry (1982)

Agave cantala var. cantala Roxbourgh (1814)

*Agave cantula Roxbourgh (1832)

*Agave capensis Gentry (1978)

*Agave caratas Hort. Besaucèle ex Berger (1915)

*Agave carchariodonta Pampanini (1907)

*Agave caribaea Verschaffelt (1873)

*Agave caribaea Hort. Kew. ex Baker (1879)

*Agave caribaeicola Trelease (1913)

*Agave carminis Trelease (1911)

*Agave carol-schmidtii Berger (1915)

Agave ×cavanillesii D. Guillot & Van der Meer (2004)

Agave caymanensis Proctor (2012)

*Agave celsiana Hort. ex Berger (1911)

*Agave celsiana Cels (1861)

*Agave celsiana Jacobi (1865)

*Agave celsii Hooker (1856)

*Agave celsii var. albicans (Jacobi) Gentry (1982)

*Agave celsii var. celsii Salm-Dyck

*Agave cernua Berger (1915)

*Polianthes cernua Art.Castro, J.G.González & Aarón Rodr. (2015)

*Agave cernua var. serrulata (Terracciano) Berger (1915)

Agave cerulata ssp. cerulata Trelease (1911)

Agave cerulata ssp. dentiens (Trelease) Gentry (1978)

*Agave cerulata ssp. nelsonii (Trelease) Gentry (1978)

Agave cerulata ssp. subcerulata Gentry (1978)

N 23-09

Agave cerulata var. nelsonii (Trelease) R.H. Webb & G.D. Starr (2015)

Agave chamelensis (E. Lott & S. Verhoek) Thiede & Eggli (1999)

*Manfreda chamelensis E. Lott & S. Verhoek (1991)

Agave chazaroi A. Vázquez & O. Valencia (2007)

Agave chiapensis Jacobi (1866)

*Agave chiapensis var. major Hort. ex Berger (1915)

*Agave chihuahuana Trelease (1911)

*Agave chinensis F. P. Smith (1871)

*Agave chisosensis C. H. Müller (1939)

*Agave chloracantha Salm-Dyck (1859)

Agave chrysantha Peebles (1935)

Agave chrysoglossa Johnston (1924)

*Agave cinerascens Jacobi (1864)

*Agave coarctata Jacobi (1869)

*Agave coccinea Lachaume (1876)

*Agave coccinea Hort. ex Berger (1898)

*Agave coccinea Roezl ex Jacobi (1865)

*Agave cochlearis Jacobi (1870)

Agave cocui Trelease (1913)

*Agave cocui var. cucutensis Hummelinck (1936)

*Agave cocui var. laguayrensis Hummelinck (1936)

*Agave coelum Hort. Besaucèle ex Berger (1915)

*Agave coerulescens Salm-Dyck (1859)

*Agave coerulescens var. grisea Jacobi (1866)

*Bravoa coetocapnia Roemer (1847)

Agave coetocapnia ssp. clivicola (McVaugh) Govaerts & Thiede (2013)

Agave coetocapnia ssp. coetocapnia (M. Roemer) Govaerts & Thiede (2013)

Agave coetocapnia ssp. pueblensis (E. Solano & García-Mend.) Govaerts & Thiede (2013)

*Agave cohniana Jacobi (1866)

Agave colimana Gentry (1968)

Agave collina Greenman (1897)

Agave colorata Gentry (1942)

*Agave communis Gaterau (1789)

*Leichtlinia commutata Ross (1896)

*Agave compacta Hort. Besaucèle ex Berger (1915)

*Agave compacta Trelease (1927)

*Agave complicata Trelease ex Ochoterena (1913)

*Agave compluviata Trelease (1914)

*Agave concinna Hort. Angl. ex Baker (1877)

?Agave concinna Lemaire in Hort. Vanhoutte (1846)

*Agave conduplicata Jacobi & Bouché (1865)

*?Manfreda conduplicata (Jacobi & Bouché) Rose (1903)

Agave confertiflora Thiede & Eggli (1999)

Agave congesta Gentry (1982)

*Agave conjuncta Berger (1915)

*Agave connochaetodon Trelease (1911)

*Agave considerantii Carruel (1875)

*Agave consociata Trelease (1911)

Agave convallis Trelease (1920)

*Agave corderoyi Baker (1877)

*Agave cordillerensis J. Lodé & G. Pino (2008)

*Agave cornuta Hort. Besaucèle ex Berger (1915)

*Agave costaricana Gentry (1949)

*Agave couesii Engelmann ex Trelease (1911)

*Agave crassispina Trelease (1914)

Agave cremnophila G.D. Starr, Etter & Kristen (2018)

*Agave crenata Jacobi (1866)

*Agave crenata Berger (1912)

Agave cryptica G.D. Starr & T.J. Davis (2021)

N 23-09

*Agave cualensis A. Vázquez, A. T. Nuño & L. Campos (2023)

?Agave cucullata Lemaire ex Jacobi (1865)

Agave cundinamarcensis Berger (1915)

Agave cupreata Trelease & Berger (1915)

*Agave cyanophylla Jacobi (1866)

D

Agave dasylirioides Jacobi & Bouché (1865)

*Agave dasylirioides var. dealbata (Jacobi) Baker ex Terracciano (1885)

Agave datylio Simon ex Weber (1902)

*Agave datylio var. datylio Simon ex Weber (1902)

*Agave datylio var. vexans (Trelease) I.M. Johnston (1924)

?Agave davillonii Baker (1892)

*Agave dealbata Lemaire ex Jacobi (1865)

*Agave dealbata E. Morren ex K. Koch (1862)

*Agave dealbata var. nana K. Koch (1869)

?Agave deamiana Trelease (1915)

*Agave debaryana Jacobi (1868)

Agave debilis Berger (1915)

*Polianthes debilis Shinners (1966)

?Agave decaisneana Jacobi (1868)

Agave decipiens Baker (1892)

*Agave deflexispina Jacobi (1871)

Agave delamateri Hodgson & Slauson (1995)

*Agave demeesteriana Jacobi (1866)

*Agave densiflora Hooker (1857)

*Agave densiflora Regel (1863)

*Bravoa densiflora Robinson & Fernald (1894)

*Polianthes densiflora (Robinson & Fernald) Shinners (1966)

*Pseudobravoa densiflora (Robinson & Fernald) Rose (1899)

*Agave densiflora var. angustifolia Hort Besaucèle ex Berger (1915)

*Agave densiflora var. foliis striatis aureis Hort Besaucèle ex Berger (1915)

*Agave dentata Hort. ex Baker (1877)

*Agave dentiens Trelease (1911)

*Agave deserti Orcutt (1883)

N 23-09

Agave deserti ssp. deserti Engelmann (1875)

*Agave deserti ssp. pringlei (Engelmann ex Baker) Gentry (1978)

Agave deserti ssp. simplex Gentry (1978)

*Agave deserti var. deserti Engelmann (1875)

*Agave deserti var. pringlei (Engelmann ex Baker) W.C. Hodgson & Reveal (2001)

*Agave deserti var. simplex (Gentry) W.C. Hodgson & Reveal (2001)

*Agave desmetiana Hort. ex Baker (1877)

Agave desmetiana Jacobi (1866)

*Agave deweyana Trelease (1909)

?Agave diacantha Royle (1855)

Agave difformis Berger (1915)

*Agave disceptata Drummond (1912)

*Agave disjuncta Trelease (1911)

*Agave dissimulans Trelease (1920)

Agave doctorensis L. Hern. & Magallán (2014)

Agave dolichantha Thiede & Eggli (1999)

*Agave dominicensis Rüse (1893)

*Agave donnell-smithii Trelease (1915)

*?Agave drimiifolia Hort. Petropop. ex Baker (1877)

*Agave duplicata Thiede & Eggli (1999)

*Agave duplicata ssp. clivicola (McVaugh) Thiede & Eggli (1999)

*Agave duplicata ssp. duplicata Thiede & Eggli (1999)

*Agave duplicata ssp. graminifolia (Rose) Thiede & Eggli (1999)

*Agave duplicata ssp. pueblensis (E. Solano & García-Mend.) Thiede (2012)

Agave durangensis Gentry (1982)

*Polianthes durangensis Rose (1903)

*Agave dussiana Trelease (1913)

*Agave dyckii Hort. Besaucèle ex Berger (1915)

E

*Agave eborispina Hester (1943)

*Agave echinoides Jacobi (1868)

*Agave eduardii Trelease (1920)

*Agave edwardii Trelease

Agave eggersiana Trelease (1913)

?Agave ehrenbergiana Baker (1877)

*Agave ehrenbergii Jacobi (1865)

*Agave eichlamii Berger (1915)

*Agave eichlamii var. interjecta Berger (1915)

*Agave ekmanii Trelease (1926)

*Agave ekmanii var. microdonta Trelease

*Agave elegans Hort. ex Salm-Dyck (1859)

?Agave elizae Berger (1915)

*Agave ellemeetiana Jacobi (1865)

*Agave ellemeetiana Regel (1865)

*Agave ellemeetiana Koch (1864)

Agave ellemeetiana ssp. ellemeetiana Koch (1865)

*Agave ellemeetiana ssp. subdentata (Trelease) Thiede (2014)

*Agave elliptica Hort. Besaucèle ex Berger (1915)

*Agave elongata Jacobi (1865)

*Agave elongata (Baker) Berger (1912)

*Manfreda elongata Rose (1903)

*Polianthes elongata (Rose) Shinners (1966)

*Polianthes elongata Rose (1905)

*Agave endlichiana Trelease (1907)

Agave ×engelmannii Trelease (1892)

Agave ensifera Jacobi (1868)

?Polianthes ensifolia Hort.ex Steudel (1841)

*Agave ensiformis Hort. ex Baker (1877)

?Agave entea Hartwich (1897)

?Agave erosa Berger (1915)

*Agave erubescens Ellemeet (1871)

Agave evadens Trelease (1913)

*Agave excelsa Jacobi (1866)

*Agave excelsa Baker (1877)

*Agave expansa Jacobi (1868)

*Agave expatriata Rose (1900)

F

*Agave falcata Engelmann (1875)

*Agave falcata var. espadina Berger (1915)

*Agave falcata var. microcarpa Berger (1915)

Agave felgeri Gentry (1972)

*Agave felina Trelease (1920)

*Agave fenzliana Jacobi (1866)

*Agave ferdinandi-regis Berger (1915)

*Agave ferox Koch (1860)

*Agave filamentosa Salm-Dyck (1859)

*Bonapartea filamentosa (Salm-Dyck) Boucen (1868)

*Dracaena filamentosa Scannagatta ex Ker-Gawler (1817)

Agave filifera Salm-Dyck (1834)

?Agave filifera fa. ortgiesiana (Todaro) Jacobsen (1954)

*Agave filifera ssp. filifera Salm-Dyck (1834)

*Agave filifera ssp. microceps Kimnach (1995)

*Agave filifera ssp. multifilifera (Gentry) Ullrich (1992)

*Agave filifera ssp. schidigera (Lemaire) Ullrich (1992)

*Agave filifera var. adornata Scheidweiler (1861)

*Agave filifera var. angustifolia Lemaire (1865)

*Agave filifera var. candida superba Hort. Besaucèle ex Berger (1915)

*Agave filifera var. compacta Trelease (1914)

*Agave filifera var. elatior Hort. Besaucèle ex Berger (1915)

*Agave filifera var. filamentosa (Salm-Dyck) Baker (1877)

*Agave filifera var. ignescens Lemaire (1865)

*Agave filifera var. immaculata Hort. Besaucèle ex Berger (1915)

*Agave filifera var. longifolia Hort. Besaucèle ex Berger (1915)

*Agave filifera var. mediopicta Hort. Besaucèle ex Berger (1915)

*Agave filifera var. pannosa Scheidweiler (1861)

*Agave filifera var. schidigera (Lemaire) Terracciano (1885)

*Agave filifera var. splendens Hort. Besaucèle ex Berger (1915)

*Agave filifera var. superba J. Croucher ex R. Hogg (1874)

*Agave filifera var. viridis Hort. Besaucèle ex Berger (1915)

?Agave flaccida Jacobi (1866)

*Agave flaccida Salm-Dyck (1834)

*Agave flaccida Haworth (1812)

*Agave flaccifolia Berger (1915)

*Bonapartea flagelliformis Henckel (1820)

*Agave flavescens Salm-Dyck (1834)

*Agave flavescens var. macracantha (Herbert) Jacobi (1865)

*Agave flavescens var. macroacantha (Zuccarini) Jacobi (1864)

*Agave flavovirens Jacobi (1866)

Agave flexispina Trelease (1920)

Agave fortiflora Gentry (1972)

?Agave fourcroydes Jacobi (1865)

Agave fourcroydes Lemaire (1864)

?Agave fragrantissima Jacquin (1762)

*Agave franceschiana Trelease, Trelease ex Berger (1912)

Agave franzosinii (Sprenger) Sewell (1892)

?Agave ×franzosinii Hort. Hanbury ex W. Watson (1889)

?Agave friderici Berger (1912)

*Agave fuerstenbergii Jacobi (1871)

Agave funkiana Koch & Bouché (1860)

Agave fusca (Ravenna) Thiede & Eggli (2001)

*Manfreda fusca Ravenna (1987)

G

?Agave galeottei Baker (1877)

Agave galvaniae (A. Castañeda, S. Franco Martínez & García-Mendoza) Etter & Kristen (2006)

*Manfreda galvaniae A. Castañeda, S. Franco Martínez & García-Mendoza (2005)

Agave garciae-mendozae R. Galván V. & L.G. Hernández S. (2002)

Agave garciamartinezii Beutelspacher & Hernández-Najarro (2021)

Agave garciaruizii A. Vázquez, Hernández-Vera & Padilla-Lepe (2019)

Agave geminiflora (Tagliabue) Ker-Gawler (1817)

*Bravoa geminiflora Lexarza (1824)

*Coetocapnia geminiflora (Lexarza) Link & Otto (1828)

*Littaea geminiflora Tagliabue (1816)

*Polianthes geminiflora (Lexarza) Rose (1903)

*Polianthes geminiflora var. clivicola McVaugh (1989)

*Agave geminiflora var. filamentosa Hooker (1856)

*Agave geminiflora var. filifera Terracciano (1885)

*Polianthes geminiflora var. graminifolia (Rose) McVaugh (1989)

*Polianthes geminiflora var. pueblensis E. Solano & García-Mend. (2007)

*Agave geminiflora var. sonorae Torrey (1859)

*Agave geminiflora var. stricta-viridis Hort. Besaucèle ex Berger (1915)

Agave gentryi Ullrich (1990)

Agave ghiesbreghtii Lemaire ex Jacobi (1864)

*Agave ghiesbreghtii dentata Hort. Belg. ex Jacobi (1869)

*Agave ghiesbreghtii mollis Hort. Belg. ex Jacobi (1866)

*Agave ghiesbreghtii var. peacockii (Croucher) Terracciano (1885)

*Furcraea gigantea Boldingh (1909)

Agave gigantensis Gentry (1978)

Agave gilberti Berger (1904)

*Agave gilbeyi Hort. Haage & Schmidt ex Regel (1874)

?Agave glabra Karwinsky in Roemer (1847)

?Agave glaucescens Otto in M. Roemer (1847)

*Agave glaucescens Hooker (1862)

Agave ×glomeruliflora (Engelmann) Berger (1915)

*?Agave goeppertiana Jacobi (1866)

*Agave goldmaniana Trelease (1911)

Agave gomezpompae Cházaro & Jimeno-Sevilla (2010)

Agave ×gonzaloi D. Guillot & Van der Meer (2004)

Agave gracielae Galván et Zamudio (2013)

Agave ×gracilipes Trelease (1912)

*Agave gracilis García Mendoza & E. Martínez (1998)

*Agave gracilis Berger (1915)

*Agave gracilis Jacobi (1871)

*Polianthes gracilis Link (1821)

*Agave gracilispina Engelmann ex Trelease (1914)

Agave gracillima Berger (1915)

*Delpinoa gracillima Ross (1897)

*Bravoa graminiflora Hemsley (1884)

Agave graminifolia (Rose) Govaerts & Thiede (2013)

*Polianthes graminifolia Rose (1903)

?Agave grandibracteata Ross (1892)

*Agave grandidentata Hort. Belg. ex Jacobi (1866)

?Agave granulosa Scheidweiler ex Koch (1861)

*Agave grenadina Trelease (1913)

*Agave grijalvensis Ullrich (1990)

Agave grisea Trelease (1913)

*Agave grisea var. cienfuegosana Trelease (1913)

*Agave grisea var. grisea Trelease (1913)

*Agave grisea var. obesispina Trelease (1913)

Agave guadalajarana Trelease (1920)

Agave guadarramae N.C. Jiménez & García-Mend. (2021)

*Agave guatemalensis Berger (1915)

?Agave guedeneyrii Houllet (1875)

Agave ×guemensis D. Guillot & Van der Meer (2005)

Agave guerrerensis (Matuda) Rowley (1977)

*Manfreda guerrerensis Matuda (1975)

Agave guiengola Gentry (1960)

Agave ×guignardii Trelease (1914)

*Agave gustaviana Hort. Corderoy ex Baker (1877)

?Agave gutierreziana Trelease (1920)

Agave guttata Jacobi & Bouché (1865)

*Manfreda guttata (Jacobi & Bouché) Rose (1903)

*Polianthes guttata (Jacobi & Bouché) Shinners (1966)

Agave gypsicola García-Mend. & D. Sandoval (2019)

Agave gypsophila Gentry (1982)

H

*Agave hanburyi Baker (1892)

Agave harrisii Trelease (1913)

*Agave hartmani S. Watson (1891)

*Agave haseloffii Jacobi (1866)

Agave hauniensis Petersen (1947)

*Manfreda hauniensis (Petersen) Verhoek (1978)

Agave havardiana Trelease (1912)

Agave haworthiana M. Roemer (1847)

Agave haynaldii Todaro (1878)

?Agave henriquesii Baker (1887)

*Agave heteracantha Zuccarini (1833)

?Agave heteracantha Berger (1898)

*Agave heteracantha Baker (1877)

*Agave heteracantha fa. glomeruliflora Engelmann (1883)

*Agave heteracantha var. splendens (Jacobi) Terracciano (1885)

*Agave heterodon Hort. ex Berger (1915)

Agave hiemiflora Gentry (1982)

*Agave hookeri Koch (1865)

?Agave hookeri Baker (1881)

*Agave hookeri Hort Besaucèle ex Berger (1915)

Agave hookeri Jacobi (1866)

?Agave horizontalis Jacobi (1868)

?Agave horizontinalis Baker (1887)

*Agave horrida Hort. Berger (1898)

*Agave horrida Lemaire ex Jacobi (1864)

Agave horrida ssp. horrida Lemaire ex Jacobi (1864)

Agave horrida ssp. perotensis Ullrich (1990)

*Agave horrida var. gilbeyi (Hort. Haage & Schmidt) Baker (1877)

*Agave horrida var. latifrons Hort. Besaucèle ex Berger (1915)

*Agave horrida var. macrodonta Van Geert (1878)

*Agave horrida var. micracantha Baker (1877)

*Agave horrida var. monstruosa Hort. Besaucèle ex Berger (1915)

*Agave horrida var. recurvispina Hort. Besaucèle ex Berger (1915)

*Agave horrida var. triangularis (Jacobi) Baker (1877)

*Agave horrida var. viridis Hort. Besaucèle ex Berger (1915)

*Agave houghii Hort. ex Trelease (1920)

*Agave houlettii Jacobi (1866)

*Agave houlletiana Cels ex Jacobi (1866)

Agave howardii (Verhoek) Thiede & Eggli (1999)

*Polianthes howardii Verhoek (1976)

*Agave huachucensis Baker (1888)

*Agave huehueteca Standley & Steyermark (1943)

?Agave humboldtiana Jacobi (1866)

*Agave humilis Roemer (1847)

Agave hurteri Trelease (1915)

Agave ×hybrida Hort. ex Verschaffelt (1868)

*Agave hystrix Hort. Belg. ex Jacobi (1870)

I

Agave impressa Gentry (1982)

Agave inaequidens ssp. barrancensis Gentry (1982)

Agave inaequidens ssp. inaequidens Koch (1860)

Agave inaguensis Trelease (1913)

Agave indagatorum Trelease (1913)

Agave infiernilloensis Etter, Kristen, Rosales & A.Vázquez (2022)

*Agave ingens Berger (1915)

*Agave ingens var. picta Berger (1912)

*Agave inghami Hort. ex Verschaffelt (1872)

?Agave inghamii longissima Hort. Whitacker ex Berger (1915)

*Agave inopinabilis Trelease (1920)

*Manfreda insignis Matuda (1966)

*Agave integrifolia Baker (1888)

*Allibertia intermedia Marion ex Baker (1883)

Agave intermixta Trelease (1913)

*Agave intrepida Greenman (1899)

Agave involuta (McVaugh) Thiede & Eggli (1999)

*Manfreda involuta McVaugh (1989)

Agave isthmensis García-Mendoza & Palma Cruz (1993)

?Agave ixtli Koch (1860)

*Agave ixtli Hort. ex Berger (1915)

*Agave ixtli Karwinsky ex Salm-Dyck (1834)

*Agave ixtli var. elongata Baker (1877)

*Agave ixtli var. excelsa (Baker) Terracciano (1885)

*Agave ixtlioides Lemaire ex Jacobi (1866)

*Agave ixtlioides Hooker (1871)

J

*Agave jacobiana Salm-Dyck (1859)

*Agave jacquiniana Schultes (1829)

Agave jaiboli Gentry (1972)

Agave jaliscana (Rose) Berger (1915)

*Manfreda jaliscana Rose (1903)

*Polianthes jaliscana (Rose) Shinners (1966)

Agave jarucoensis Álvarez (1981)

Agave jimenoi Cházaro & A. Vázquez (2013)

*Bonapartea juncea Haworth (1812)

*Bonapartea juncea Willdenow (1814)

*Littaea juncea E. Morren (1866)

*Tillandsia juncea Willdenow ex Steufel (1841)

Agave justosierrana (García-Mend.) Thiede (2012)

*Manfreda justosierrana García-Mend. (2011)

K

*Agave kaibabensis McKelvey (1949)

Agave karatto Miller (1768)

*Agave karwinskiana Herbert (1837)

Agave karwinskii Zuccarini (1833)

*Agave katharinae Berger (1915)

Agave kavandivi García-Mend. & Chávez-Rendón (2013)

?Agave kellermaniana Trelease (1915)

*Agave kellockii Jacobi (1868)

*Agave keratto Haworth (1819)

*Agave keratto Steudel (1840)

Agave kerchovei Lemaire (1864)

*Agave kerchovei var. brevifolia Hort. Besaucèle ex Berger (1915)

*Agave kerchovei var. diplacantha Lemaire (1864)

*Agave kerchovei var. distans Lemaire (1864)

*Agave kerchovei var. glauca Hort. Besaucèle ex Berger (1915)

*Agave kerchovei var. inermis Ortgies ex Baker (1877)

*Agave kerchovei var. macrodonta Lemaire (1864)

*Agave kerchovei var. miniata Hort. Besaucèle ex Berger (1915)

*Agave kerchovei var. pectinata Baker (1877)

*Agave kerchovei var. variegata Hort. Besaucèle ex Berger (1915)

*Agave kerkhovei Hort. ex Jacobi (1870)

*Agave kerrato Salm-Dyck (1859)

*Agave kerratto Salm-Dyck (1859)

N 23-09

Agave kewensis Jacobi (1866)

*Bravoa ×kewensis W. Watson (1899)

?Agave killischea Rafarin (1874)

*Agave killischkii Hort. ex Berger (1915)

*Agave kirchneriana Berger (1915)

*Agave knightiana Drummond (1909)

*Agave kochii Jacobi (1866)

Agave kristenii A. Vázquez & M. Cházaro (2013)

L

*Agave laetevirens Hort. ex Berger (1915)

*Agave laevis Hort. ex Baker (1892)

Agave lagunae Trelease (1915)

*Agave lamprochlora Jacobi (1868)

*Agave langlassei André (1901)

*Agave lata Shinners (1951)

*Polianthes lata (Shinners) Shinners (1966)

?Agave laticincta Verschaffelt (1868)

*Agave latifolia Hort. ex Salm-Dyck (1859)

*Agave latissima Jacobi (1864)

*Agave latissima Auct.

*Agave laurentiana Jacobi (1866)

*Agave laxa Salm-Dyck (1834)

*Agave laxa Karwinsky ex Otto (1842)

*Agave laxifolia Baker (1896)

Agave lechuguilla Torrey (1859)

*Agave lechuguilla fa. glomeruliflora (Engelmann) Trelease (1920)

*Agave legrelliana Jacobi (1866)

*Agave legrelliana var. breviflora Trelease (1913)

?Agave leguayana Hort. Besaucèle ex Berger (1915)

?Agave leguayana Baker (1877)

*Agave leguayana Verschaffelt (1868)

*Agave lehmannii Jacobi (1868)

?Agave lemairei Hort. Verschaffelt ex Ill. Hort. (1864)

?Agave lempana Trelease (1925)

Agave ×leopoldii Hort. ex Nicholson (1900)

*Agave lepida Dietrich (1840)

*Agave lespinassei Trelease (1907)

*Agave letonae Taylor ex Trelease (1925)

Agave lexii García-Morales, García-Jiménez & Iamonico (2019)

?Agave lindleyi Jacobi (1868)

*Agave linearia Jacobi (1869)

?Agave littaeoides Pampanini (1909)

Agave littoralis (García-Mendoza, A. Castañeda & S. Franco) Thiede & Eggli (2001)

*Manfreda littoralis García-Mendoza, A. Castañeda & S. Franco (2000)

Agave longibracteata (Verhoek) Thiede & Eggli (1999)

*Manfreda longibracteata Verhoek (1978)

Agave longiflora (Rose) Rowley (1977)

*Manfreda longiflora (Rose) Verhoek (1975)

*Polianthes longiflora Rose (1903)

*Runyonia longiflora Rose (1922)

*Agave longifolia Hort. ex Berger (1915)

*Agave longifolia var. picta (Salm-Dyck) Regel (1865)

Agave longipes Trelease (1913)

?Agave longisepala Todaro (1878)

Agave lophantha Schiede (1829)

*Agave lophantha var. angustifolia Berger (1915)

*Agave lophantha var. brevifolia Jacobi (1866)

*Agave lophantha var. gracilior Jacobi (1866)

*Agave lophantha var. latifolia Berger (1915)

*Agave lophantha var. pallida Berger (1915)

*Agave lophantha var. poselgeri (Salm-Dyck) Berger (1915)

*Agave lophantha var. subcanescens Jacobi (1866)

*Agave lophantha var. tamaulipasana Berger (1915)

*Agave lurida Hamelberg (1898)

*Agave lurida Jacquin (1790)

Agave lurida Aiton (1789)

*Agave lurida var. jacquiniana (Schultes) Salm-Dyck (1861)

Agave lyobaa García-Mend. & S. Franco (2019)

M

*Agave macracantha Herbert (1837)

*?Agave macracantha var. macrantha (Todaro) Terracciano (1885)

*Agave macrantha Jacobi (1869)

*Agave macrantha Todaro (1879)

Agave macroacantha Zuccarini (1833)

*Agave macroacantha var. integrifolia Trelease (1907)

*Agave macroacantha var. latifolia Trelease (1907)

*Agave macroacantha var. planifolia Berger (1912)

*Agave macroculmis Todaro (1878)

*Agave maculata Engelmann ex Torrey (1859)

?Agave maculata Regel (1856)

?Agave maculata Hort. ex Berger (1915)

*Manfreda maculata (Martius) Rose (1903)

*Polianthes maculata Martius (1831)

*Agave maculata var. brevituba (Engelmann) Mulford (1896)

Agave maculosa Hooker (1859)

*Manfreda maculosa (Hooker) Rose (1903)

*Polianthes maculosa (Hooker) Shinners (1966)

*Agave maculosa var. brevituba Engelmann (1875)

*Agave maculosa var. minor Jacobi (1868)

Agave ×madrensis Villarreal, A. Ramírez, & A.E. Estrada (2014)

*Agave maigretiana Jacobi (1866)

*Manfreda malinaltenangensis Matuda (1976)

?Agave malinczii Hort. Tonel ex Koch (1862)

Agave manantlanicola Cuevas & Santana-Michel (2012)

*Agave manguai Desfontaines (1815)

Agave mapisaga Trelease (1920)

*Agave mapisaga var. lisa Gentry (1982)

N 23-09

*Agave marcelinoi A. Vázquez & Padilla Lepe (2023)

*Agave marcusea Hort. ex Trelease (1912)

*Agave marcusii De Smet (1876)

*Agave marensii Hort. ex Trelease (1912)

Agave margaritae Brandegee (1889)

Agave maria-patriciae Cházaro & Arzaba (2018)

Agave marmorata Roezl (1883)

N 23-09

*Agave martaelenae A. Vázquez & Padilla-Lepe (2022)

*Agave martiana K. Koch (1860)

Agave ×massiliensis Berger (1915)

*Agave maximiliana Hort. Saunders ex Baker (1877)

Agave maximiliana var. katherinae (Berger) Gentry (1982)

Agave maximiliana var. maximiliana Baker (1877)

?Agave maximowicziana Regel (1890)

N 23-09

Agave mayo A. Vázquez & Rosales (2023)

*Agave mayoensis Gentry (1942)

Agave mckelveyana Gentry (1970)

*Agave medioxima Trelease (1913)

*Agave megalacantha Hemsley (1880)

Agave megalodonta García-Mend. & D. Sandoval (2019)

*Agave melanacantha Lemaire ex Jacobi (1865)

*Agave melliflua Trelease (1914)

*Agave mescal Ellemeet ex Koch (1865)

*Agave mexicana Lamarck (1783)

*Agave mexicana Dolley & al. (1889)

*Polianthes mexicana Zuccarini (1837)

*Prochnyanthes mexicana (Zuccarini) Rose (1903)

*Agave mexicana var. picta (Salm-Dyck) Cels (1865)

*Agave mezortillo Hort.

Agave michoacana (M. Cedano, R. Delgadillo & I. Enciso) Thiede & Eggli (1999)

*Polianthes michoacana M. Cedano, R. Delgadillo & I. Enciso (1993)

*Agave micracantha Baker (1877)

*Agave micracantha Salm-Dyck (1859)

*Agave micracantha var. albicans (Jacobi) Terracciano (1885)

*Agave micracantha var. albidior Salm-Dyck (1859)

*Agave micracantha var. mitis (Martius) A. Terracciano (1885)

*Agave micrantha Salm-Dyck (1859)

Agave microceps (Kimnach) A. Vázquez & Cházaro (2007)

?Agave milleri Salm-Dyck (1834)

*Agave milleri Haworth (1812)

*Agave milleri var. picta (Salm-Dyck) van Houtte (1868)

Agave millspaughii Trelease (1913)

?Agave minarum Trelease (1915)

N 23-09

Agave minor Proctor (2005)

*Agave mirabilis Trelease (1920)

*Agave miradorensis Jacobi (1868)

*Agave miradorensis var. regelianam (Jacobi) Terracciano (1885)

Agave missionum Trelease (1913)

Agave mitis Martius (Hort. Monac. ex Salm-Dyck) (1848)

*Agave mitis var. albidior (Salm-Dyck) Ullrich (1993)

*Agave mitis var. mitis Martius (Hort. Monac. ex Salm-Dyck) (1859)

*Agave mitriformis Jacobi (1869)

*Ghiesbreghtia mollis Roezl (1861)

?Agave monostachya Sessé & Moçiño (1894)

Agave montana Villarreal (1996)

*Polianthes montana Rose (1903)

*Agave montezumae Hort. Belg. ex Jacobi (1864)

Agave ×montium-sancticaroli García-Mendoza et al. (2007)

*Agave montserratensis Trelease (1913)

Agave moranii Gentry (1978)

*Agave morrisii Kent (1908)

*Agave morrisii Eggers (1889)

*Agave morrisii Worsley (1895)

*Agave morrisii Baker (1887)

Agave ×mortolensis Berger (1912)

?Agave muelleriana Berger (1915)

*Agave muilmannii Jacobi (1870)

*Agave mulfordiana Trelease (1920)

Agave multicolor (E. Solano & Dávila) Thiede (2012)

*Polianthes multicolor E. Solano & Dávila (2003)

N 23-09

Agave multifilifera Gentry (1972)

?Agave multiflora Todaro (1890)

*Agave multilineata Baker (1888)

Agave ×murpheyi Gibson (1935)

Agave muxii Zamudio & G. Aguilar-Gutiérrez (2020)

*Agave myriacantha Hort Besaucèle ex Berger (1915)

N

Agave nanchititlensis (Matuda) Thiede & Govaerts (2017)

*Agave nanchititlensis (Matuda) Thiede & Eggli (1999)

*Manfreda nanchititlensis Matuda (1974)

Agave nashii Trelease (1913)

Agave nayaritensis Gentry (1982)

*Agave neglecta Small (1903)

*Agave nelsonii Trelease (1911)

*Polianthes nelsonii Rose (1903)

Agave neocernua Thiede (2015)

Agave ×neokewensis Thiede (2012)

*Agave neomexicana Wooton & Standley (1913)

Agave neonelsonii Thiede & Eggli (1999)

Agave neopringlei Thiede & Eggli (1999)

*Agave nevadensis (Engelmann ex Greenman & Roush) Hester (1943)

*Agave nevidis Trelease (1913)

*Agave newberryi Engelmann (1875)

Agave nickelsiae Roland-Gosselin (1895)

?Agave nigromarginata Hort. Besaucèle ex Berger (1915)

?Agave nirvana Herbin & Robins (1968)

?Agave nissonii Baker (1874)

*Agave nivea Trelease (1915)

Agave nizandensis Cutak (1951)

*Agave noackii Jacobi (1865)

*Agave noah Nickels (1894)

*Agave noli-tangere Berger (1915)

Agave ×nuusaviorum ssp. deltoidea García-Mend. (2010)

Agave ×nuusaviorum ssp. nuusaviorum García-Mend. (2010)

O

Agave oaxacana (García-Mend. & E. Solano) Thiede (2012)

*Polianthes oaxacana García-Mend. & E. Solano (2007)

*Agave obducta Trelease (1913)

*Agave oblongata Jacobi (1868)

Agave obscura Schiede (1830)

Agave ocahui var. longifolia Gentry (1982)

Agave ocahui var. ocahui Gentry (1972)

Agave occidentalis (Art.Castro & Aarón Rodr.) Thiede & Gideon F.Sm. (2019)

*Manfreda occidentalis Art.Castro & Aarón Rodr. (2017)

?Agave offoyana De Smet ex Jacobi (1865)

*Agave oligophylla Baker (1878)

*Agave oliverana (Rose) Berger (1915)

*Manfreda oliverana Rose (1903)

*Polianthes oliverana (Rose) Shinners (1966)

*Agave opacidens Trelease (1915)

*Agave orcuttiana Trelease (1911)

*Agave ornata Jacobi (1865)

Agave ornithobroma Gentry (1982)

Agave oroensis Gentry (1982)

*?Agave ortgiesiana (Baker) Trelease (1914)

*?Agave ortgiesiana Todaro

*Agave ortgiesiana Roezl (1880)

*Agave ortgiesiana var. brevifolia Hort. Besaucèle ex Berger (1915)

Agave oteroi Starr & Davis (2019)

*Agave ottonis Jacobi (1866)

*Agave ousselghemiana Jacobi (1868)

Agave ovatifolia Starr & Villarreal (2002)

*Agave oweni Johnston (1924)

P

Agave pablocarrilloi A. Vázquez, M.A. Muñiz & Padilla-Lepe (2013)

*Agave pachyacantha Trelease (1911)

Agave pachycentra Trelease (1915)

*Agave pacifica Trelease (1920)

*Agave pallida Salisbury (1796)

?Agave pallida Sartorius ex Jacobi (1865)

*Agave palmaris Trelease (1920)

Agave palmeri Engelmann (1875)

*Agave palmeri ssp. chrysantha (Peebles) Ullrich (1991)

*Agave palmeri var. chrysantha (Peebles) Little ex Benson (1943)

Agave palustris (Rose) Thiede & Eggli (1999)

*Polianthes palustris Rose (1903)

?Agave pampaniniana Berger (1915)

*Agave panamana Trelease (1920)

Agave paniculata (L. Hern., R.A. Orellana & Carnevali) Thiede (2012)

*Manfreda paniculata L. Hern., R.A. Orellana & Carnevali (2008)

Agave papyrocarpa ssp. macrocarpa Álvarez (1985)

Agave papyrocarpa ssp. papyrocarpa Trelease (1913)

*Agave parayi Hort. ex Trelease (1912)

Agave parrasana Berger (1906)

*Agave parreyi Hort. ex Trelease (1912)

*Agave parryi fa. integrifolia Breitung (1963)

N 23-09

Agave parryi ssp. neomexicana (Wooton & Standley) Ullrich (1992)

Agave parryi ssp. parryi Engelmann (1875)

*Agave parryi ssp. truncata (Gentry) Hochstätter (2015)

Agave parryi var. couesii (Engelmann ex Trelease) Kearney & Peebles (1939)

Agave parryi var. huachucensis (Baker) Little ex Benson (1943)

*Agave parryi var. neomexicana (Wooton & Standley) McKechnie (1949)

Agave parryi var. parryi Engelmann (1875)

Agave parryi var. truncata Gentry (1982)

Agave parva (Aarón Rodr.) Thiede (2012)

*Manfreda parva Aarón Rodr. (2009)

Agave parvidentata Trelease (1925)

Agave parviflora ssp. densiflora G.D. Starr & T. Van Devender (2011)

Agave parviflora ssp. flexiflora Gentry (1972)

Agave parviflora ssp. parviflora Torrey (1859)

*Agave paryi Hort. ex Trelease (1912)

*Agave patonii Trelease (1911)

*Agave paucifolia Baker (1878)

*Agave paucifolia Todaro (1877)

?Agave paupera Berger (1915)

?Agave pavoliniana Pampanini (1910)

Agave pax Giraldo-Cañas (2017)

*Agave payrii Hort. ex Trelease (1912)

Agave ×peacockii Croucher (1873)

*Agave pedrosana Trelease (1920)

*Agave pedunculifera Trelease (1920)

Agave pelona Gentry (1972)

Agave pendula Schnittspahn (1857)

*Agave perbella Hort. ex Baker (1877)

?Agave perlucida Jacobi (1868)

*Agave perplexans Trelease (1914)

*Agave pes-mulae Trelease (1920)

Agave petiolata Trelease (1913)

Agave petrophila García-Mendoza & Martínez (1998)

Agave petskinil (R.A. Orellana, L. Hern. & Carnevali) Thiede (2012)

*Manfreda petskinil R.A. Orellana, L. Hern. & Carnevali (2008)

Agave ×pfersdorfii Hort. ex Becausèle ex Andre (1904)

Agave phillipsiana W.C. Hodgson (2001)

*Agave picta Salm-Dyck (1859)

Agave pintilla S. González & al. (2011)

?Agave planera Fasio (1903)

Agave planifolia S. Watson (1887)

*Manfreda planifolia (S. Watson) Rose (1903)

*Polianthes planifolia (S. Watson) Shinners (1966)

Agave platyphylla (Rose) Thiede & Eggli (1999)

*Polianthes platyphylla Rose (1903)

Agave polianthes Thiede & Eggli (2001)

Agave polianthiflora Gentry (1972)

Agave polianthoides Roemer (1847)

?Agave polyacantha Haworth (1821)

*Agave polyacantha Baker (1888)

*?Agave polyacantha Jacobi (1865)

*Agave polyacantha var. densiflora (Hooker) Terracciano (1858)

*Agave polyacantha var. xalapensis (Roezl ex Jacobi) Gentry (1982)

*Agave polyantha Dodge (1897)

*Agave polyanthoides Schlechtendal & Chamisso (1831)

*Agave polyphylla Koch (1860)

*Agave portoricensis Trelease (1913)

*Agave poselgeri Salm-Dyck (1859)

*Agave poselgeri var. kerchovei (Lemaire) Terracciano (1885)

Agave potatorum Zuccarini (1833)

*Agave potatorum Hort. ex Berger (1915)

?Agave potatorum Koch (1860)

*Agave potatorum var. minor Hort.

*Agave potatorum var. verschaffeltii (Lemaire ex Jacobi) Berger (1915)

Agave potosina Robinson & Greenman (1894)

*Manfreda potosina (Robinson & Greenman) Rose (1903)

*Polianthes potosina (Robinson & Greenman) Shinners (1966)

Agave potrerana Trelease (1920)

*Agave prainiana Berger (1915)

Agave pratensis Berger (1915)

N 23-09

Agave pringlei Engelmann ex Baker (1888)

?Agave pringlei Hort. ex Berger (1912)

*Manfreda pringlei Rose (1903)

*Polianthes pringlei Rose (1903)

Agave producta Thiede & Eggli (1999)

*Agave prolifera Schott ex Standley (1930)

*Agave promontorii Trelease (1911)

?Agave prostrata Martius ex Dragendorff (1898)

*Agave protuberans Engelmann ex Baker (1888)

*Leichtlinia protuberans (Engelmann ex Baker) Ross (1896)

*Agave pruinosa Lemaire ex Jacobi (1865)

*Agave pseudofilifera Ross & Lanza (1892)

*Agave pseudotequilana Trelease (1920)

Agave pubescens Regel & Ortgies (1874)

*Manfreda pubescens (Regel & Ortgies) Verhoek-Williams (1975)

*Agave pugioniformis Zuccarini (1833)

?Agave pulcherrima Otto in Roemer (1847)

*Agave pulcherrima Hort. ex Koch (1865)

*Agave pulchra Hort. ex Salm-Dyck (1859)

?Agave pulverulenta Verschaffelt (1863)

?Agave pumila Hort. Becausèle ex Berger (1915)

Agave ×pumila De Smet ex Baker (1888)

*Agave punctata Salm-Dyck (1834)

?Agave purpurea Souza Novelo (1941)

*Agave purpusorum Berger (1915)

*Agave pygmae Gentry (1982)

?Polianthes pygmaea Jacquin (1793)

Q

*Agave quadrata Lemaire (1864)

Agave quilae (Arturo Castro-Castro & Aarón Rodríguez) Thiede & Govaerts (2017)

*Polianthes quilae Art. Castro & Aaron Rodr.z (2016)

Agave quiotepecensis García-Mend. & S. Franco (2019)

*Agave quiotifera Trelease ex Ochoterena (1913)

R

?Agave ragusae Todaro (1897)

*Agave ramosa Moench (1794)

*Agave rasconensis Trelease (1920)

*Agave recurva Zuccarini (1845)

*Agave regeliana Hort. ex Baker (1877)

*Agave regeliana Jacobi (1866)

*Agave regeliana Jacobi (1866)

*Agave regelii Hort. Besaucèle ex Berger (1915)

?Agave regia Baker (1877)

*Agave reginae Hort. ex Berger (1912)

*Agave repanda Trelease ex Gentry (1982)

Agave revoluta Klotzsch (1840)

*Manfreda revoluta (Klotzsch) Rose (1903)

*Polianthes revoluta (Klotzsch) Shinners (1966)

Agave rhodacantha Trelease (1920)

*Agave richardsii Hort. ex G. Nicholson (1884)

*Agave rigida Northrop (1902)

*Agave rigida Spin (1812)

*Agave rigida Berger (1898)

*Agave rigida var. elongata (Baker) Baker (1893)

*Agave rigida var. elongata Anonymus (1893)

*Agave rigida var. longifolia Engelmann (1875)

*Agave rigida var. sisalana (Perrine) Engelmann (1875)

*Agave rigidissima Jacobi (1869)

*Agave roezliana Baker (1877)

*Agave roezliana var. inghamii Hort. ex Baker (1877)

*Agave roezliana var. peacockii (Croucher) Trelease (1920)

*Agave roezlii Hort. ex Berger (1915)

*Littaea roezlii Roezl (1861)

?Agave rohanii Hort. ex Berger (1915)

*Agave rohanii Jacobi (1864)

Agave ×romanii Hort. De Smet ex Becausèle (1903)

Agave rosalesii A. Vázquez, Thiede, Etter & Kristen (2022)

*Agave roseana Trelease (1911)

Agave rosei Thiede & Eggli (1999)

*Polianthes rosei Shinners (1967)

Agave ×rosselloana D. Guillot & Van der Meer (2004)

Agave ×rovelliana Todaro (1889)

*Agave rubescens Salm-Dyck (1834)

*Manfreda rubescens Rose (1903)

*Polianthes rubescens (Rose) Shinners (1966)

*Agave rubrocincta Jacobi (1868)

?Agave rudis Lemaire ex Jacobi (1865)

*Agave rufocincta Jacobi (1868)

*Agave rumphii Jacobi (1865)

*Polianthes runyonii Shinners (1966)

*Agave rupicola Regel (1858)

*Agave rupicola var. bouchei (Jacobi) Terracciano (1885)

*Agave rupicola var. brevifolia Regel (1858)

*Agave rupicola var. longifolia Regel (1858)

*Agave rupicola var. rubridentata Regel (1858)

Agave rutteniae Wagenaar-Hummelinck (1936)

Agave rzedowskiana P. Carrillo, R. Vega & R. Delgad. (2003)

S

*Agave salm-dyckii Baker (1877)

Agave salmiana ssp. crassispina (Trelease) Gentry (1982)

*Agave salmiana ssp. ferox (K. Koch) Hochstätter (2015)

Agave salmiana ssp. salmiana Otto ex Salm-Dyck (1859)

*Agave salmiana ssp. tehuacanensis (Karwinsky ex Salm-Dyck) García-Mendoza (2011)

*Agave salmiana var. angustifolia Berger (1915)

*Agave salmiana var. cinerea Jacobi (1866)

*Agave salmiana var. contorta Hort. Besaucèle ex Berger (1915)

*Agave salmiana var. ferox (Koch) Gentry (1982)

N 23-09

Agave salmiana var. mitriformis (Jacobi) Berger (1903)

*Agave salmiana var. recurvata Jacobi (1866)

Agave salomonii G.D. Starr, T.J. Davis & G. Juárez (2022)

Agave ×saltilloensis Hort. B. Ullrich (1991)

*Agave samalana Trelease (1915)

N 23-09

Agave sanpedroensis W.C. Hodgson & Salywon (2018)

Agave santanamichelii (Art.Castro, Aarón Rodr. & P.Carrillo) Thiede & Gideon F.Sm. (2019)

*Manfreda santana-michelii Art.Castro, Aarón Rodr. & P.Carrillo (2018)

*Agave saponaria Lindley (1838)

?Agave saponifera Grothe (1880)

*Agave sartorii Koch (1860)

*Agave sartorii var. caespitosa (Todaro) Terracciano (1885)

*Agave saundersii Hooker Fil. (1865)

*Agave scaberrima Hort. Peacock ex Baker (1888)

Agave scabra Ortega (1797)

*Agave scabra Salm-Dyck sensu Gentry (1859)

*Manfreda scabra (Ortega) McVaugh (1989)

*Agave scabra ssp. maderensis Gentry (1982)

*Agave scabra ssp. potosiensis Gentry (1982)

*Agave scabra ssp. scabra Salm-Dyck (1859)

*Agave scabra ssp. zarcensis Gentry (1982)

*Agave scaphoidea Greenman & Roush (1929)

Agave scaposa Gentry (1982)

*Agave scheuermaniana Trelease (1913)

N 23-09

Agave schidigera Lemaire (1862)

*Agave schidigera var. angustifolia Lemaire (1865)

*Agave schidigera var. ignescens Lemaire (1865)

*Agave schidigera var. ortgiesiana Baker (1877)

*Agave schidigera var. plumosa Lemaire (1865)

*Agave schidigera var. taylorii (Besaucèle) Jacobsen (1955)

*Agave schlechtendalii Jacobi (1864)

Agave schneideriana Berger (1915)

*Agave schnittspahnii Jacobi (1865)

Agave schottii var. atricha Trelease (1920)

Agave schottii var. schottii Engelmann (1875)

*Agave schottii var. serrulata Mulford (1896)

*Agave schottii var. treleasei (Toumey) Kearney & Peebles (1939)

?Agave scolymus Kunth (1850)

*Agave scolymus Berger (1898)

*Agave scolymus Karwinsky ex Salm-Dyck (1834)

?Agave scolymus D. Dietrich (1843)

*Agave scolymus var. seemanniana (Jacobi) Terracciano (1885)

Agave sebastiana Greene (1885)

Agave seemanniana Jacobi (1868)

*Agave seemanniana ssp. pygmaea (Gentry) Ullrich (1992)

*Agave seemanniana var. perscabra Trelease (1915)

*Agave seemannii Hort. Besaucèle ex Berger (1915)

*Agave segurae D. Guillot & P. van der Meer (2005)

*Agave serrulata Karwinsky ex Otto (1842)

?Agave serrulata Steudel (1841)

N 23-09

*Agave servandoana A. Vázquez & Padilla-Lepe (2023)

*Agave sessiliflora Hemsley (1880)

*Bravoa sessiliflora Hemsley (1880)

*Manfreda sessiliflora (Hemsley) Matuda (1961)

*Polianthes sessiliflora (Hemsley) Rose (1903)

Agave shaferi Trelease (1913)

Agave shawii ssp. goldmaniana (Trelease) Gentry (1978)

Agave shawii ssp. shawii Engelmann (1875)

*Agave shawii var. sebastiana (Trelease) Gentry (1949)

Agave shrevei ssp. magna Gentry (1982)

Agave shrevei ssp. matapensis Gentry (1972)

Agave shrevei ssp. shrevei Gentry (1972)

*Agave sicaefolia Trelease (1915)

Agave sileri (Verhoek) Thiede & Eggli (1999)

*Manfreda sileri Verhoek (1978)

?Agave silvestris Hort. ex Berger (1915)

Agave ×simoni André (1904)

?Agave simonii Hort. Becausèle ex Berger (1915)

*Agave simonis Hort. ex Berger (1915)

Agave singuliflora (S. Watson) Berger (1915)

*Bravoa singuliflora S. Watson (1887)

*Manfreda singuliflora (S. Watson) Rose (1903)

*Polianthes singuliflora (S. Watson) Shinners (1966)

Agave sisalana Perrine (1838)

*Agave sisalana fa. armata (Trelease) Trelease (1920)

*Agave sisalana fa. marginata Medina (1955)

*Agave sisalana fa. medio-picta Medina (1955)

*Agave sisalana var. armata Trelease (1913)

*Agave sleviniana I. M. Johnston (1924)

?Agave smithiana Jacobi (1866)

*Agave sobolifera Hitchcock (1893)

Agave sobolifera Salm-Dyck (1834)

*Agave sobolifera var. serrulata Terracciano (1885)

Agave sobria ssp. frailensis Gentry (1978)

Agave sobria ssp. roseana (Trelease) Gentry (1978)

Agave sobria ssp. sobria Brandegee (1889)

*Agave sobria var. roseana (Trelease) Johnston (1924)

*Agave sonorae (Torrey) Mearns (1907)

?Agave sordida Berger (1915)

N 23-09

*Agave sororum A. Vázquez & M. Cházaro (2023)

*Agave spectabilis Salisbury (1796)

*Agave spectabilis Todaro (1878)

*Agave spectabilis Hort. Besaucèle ex Berger (1915)

Agave spicata Cavanilles (1802)

*Agave spicata De Candolle (1813)

*Agave spicata Gussone (1825)

*Agave spiralis Brandegee ex Berger (1912)

*Agave splendens Jacobi (1870)

*Agave stenophylla Jacobi (1866)

Agave stictata Thiede & Eggli (1999)

Agave striata ssp. falcata (Engelmann) Gentry (1982)

Agave striata ssp. striata Zuccarini (1833)

*Agave striata ssp. stricta (Salm-Dyck) Ullrich (1990)

*Agave striata var. californica (Jacobi) Terracciano (1885)

*?Agave striata var. echinoides (Jacobi) Terracciano (1885)

*Agave striata var. mesae Berger (1915)

*Agave striata var. recurva (Zuccarini) Terracciano (1885)

*Agave striata var. stricta (Salm-Dyck) Baker (1877)

Agave stricta Salm-Dyck (1859)

Agave stringens Trelease (1920)

*Agave subfalcata Jacobi (1869)

?Agave subinermis M. Roemer (1847)

Agave subsimplex Trelease (1911)

*Agave subtilis Trelease (1920)

*Agave subzonata Trelease (1920)

*Agave sudburyensis Hort. Peacock ex Baker (1877)

*Agave sullivani Trelease (1920)

Agave sylvesteriana Giraldo-Cañas (2020)

T

*Manfreda tamazunchalensis Matuda (1966)

*Agave ×taylorea Hort. B.S. Williams ex Rafarin (1877)

Agave ×taylorii Hort. B.S. Williams (1874)

*Agave taylorii Hort. Besaucèle ex Berger (1874)

Agave tecta Trelease (1915)

*Agave tehuacanensis Karwinsky ex Otto (1842)

*Agave tehuacanensis Karwinsky ex Salm-Dyck (1859)

N 23-09

Agave telegraphica H. Jekyll (1871)

*Polea telegraphica (H. Jekyll) E.C. Nelson (2001)

Agave temacapulinensis A. Vázquez & Cházaro (2012)

*Runyonia tenuiflora Rose

Agave tenuifolia Zamudio & E. Sánchez (1995)

*Agave tenuispina Trelease (1915)

*Agave teopiscana Matuda (1972)

?Agave teoxomuliana Karwinsky ex M. Roemer (1847)

Agave tequilana Weber (1902)

*Agave terraccianoi Pax (1893)

*Agave theometel Zuccagni (1806)

Agave thomasae Trelease (1915)

?Agave thomsoniana Jacobi (1866)

*Agave tigrina (Engelmann) Cory (1936)

*Manfreda tigrina (Engelmann) Small ex Rose (1903)

*Agave tingens Berger (1915)

Agave titanota Gentry (1982)

*Agave todaroi Baker (1888)

?Agave toeniata Hort. Becausèle ex Berger (1915)

?Agave toneliana Hort. Becausèle ex Berger (1915)

?Agave toneliana Baker (1881)

?Agave toneliana Hort. Tonel ex K. Koch (1862)

*Agave tortispina Trelease (1915)

Agave toumeyana ssp. bella (Breitung) Gentry (1982)

Agave toumeyana ssp. toumeyana Trelease (1920)

*Agave toumeyana var. bella Breitung (1960)

*Agave toumeyana var. toumeyana Trelease (1920)

*Agave trankeera Trelease (1913)

*Agave treleasei Toumey (1901)

Agave triangularis Jacobi (1869)

*Agave triangularis var. rigidissima (Jacobi) Trelease (1920)

*Agave triangularis var. subintegra Trelease (1920)

?Agave troubetskoyana Baker (1892)

*Agave tuberosa (Linné) Thiede & Eggli (1999)

*Furcraea tuberosa Drummond (1907)

*Polianthes tuberosa Linné (1753)

*Polianthes tuberosa fa. plena Moldenke (1948)

*Polianthes tuberosa var. gracilis (Link) Beurling (1856)

*Runyonia tubiflora Rose

Agave tubulata Trelease (1913)

*Polianthes tubulata Sessé & Moçiño (1894)

*Agave tubulata ssp. brevituba Álvarez (1984)

Agave turneri R.H. Webb & J.M. Salazar-Ceseña (2011)

U

Agave umbrophila (García-Mend.) Thiede (2012)

*Manfreda umbrophila García-Mend. (2011)

*Agave uncinata Jacobi (1865)

Agave underwoodii Trelease (1913)

?Agave undulata Klotzsch (1840)

*?Manfreda undulata (Klotzsch) Rose (1903)

*?Agave undulata var. strictior Jacobi & Bouché (1865)

*Agave unguiculata Trelease (1913)

*Agave univittata Haworth (1831)

*Agave univittata var. angustifolia (Berger) Jacobsen (1973)

*Agave univittata var. brevifolia (Jacobi) Jacobsen (1973)

*Agave univittata var. carchariodonta (Pampanini) Breitung (1959)

*Agave univittata var. cerulescens (Salm-Dyck) Jacobsen (1973)

*Agave univittata var. foliis striatis Hort. Besaucèle ex Berger (1915)

*Agave univittata var. gracilior (Jacobi) Jacobsen (1973)

*Agave univittata var. heteracantha (Zuccarini) Breitung (1959)

*Agave univittata var. latifolia (Berger) Breitung (1959)

*Agave univittata var. recurvispinis Hort. Besaucèle ex Berger (1915)

*Agave univittata var. subcanescens (Jacobi) Jacobsen (1973)

*Agave univittata var. tamaulipasana (Berger) Jacobsen (1973)

*Agave univittata var. viridis Hort. Besaucèle ex Berger (1915)

*Agave univittata var. zonata Hort. Besaucèle ex Berger (1915)

*Agave utahensis fa. nuda Hort. ex E. & B. Lamb (1978)

Agave utahensis ssp. kaibabensis (McKelvey) Gentry (1982)

Agave utahensis ssp. utahensis Engelmann (1871)

*Agave utahensis var. discreta M. E. Jones (1930)

Agave utahensis var. eborispina (Hester) Breitung (1960)

*Agave utahensis var. kaibabensis (McKelvey) Breitung (1960)

Agave utahensis var. nevadensis Engelmann ex Greenman & Roush (1929)

*Agave utahensis var. scaphoidea (Greenman & Roush) M. E. Jones (1930)

*Agave utahensis var. utahensis Engelmann (1871)

V

Agave valenciana Cházaro & A. Vázquez (2005)

*Agave vanderdonckii Hort. ex Baker (1877)

?Agave vandervinnenii Lemaire (1864)

*Agave vangrolae Trelease (1913)

Agave variegata Jacobi (1865)

*Agave variegata Steudel (1821)

*Manfreda variegata (Jacobi) Rose (1903)

*Polianthes variegata (Jacobi) Shinners (1966)

*Manfreda variegata var. sileri Verhoek (1975)

Agave vazquezgarciae Cházaro & J.A. Lomelí (2006)

*Agave ventum-versa Trelease (1913)

N 23-09

Agave venustuliflora (E. Solano & al.) Thiede & Gideon F. Smith (2019)

N 23-09

*Polianthes venustuliflora E. Solano & al. (2019)

*Agave vera-cruz Miller (1768)

*Agave vera-cruz var. jacquiniana (Schultes & Schultes fil.) Ascherson & Graebner (1906)

*Agave verae-crucis Haworth (1812)

Agave verdensis Hodgson & Salywon (2013)

Agave verhoekiae (García-Mend.) Thiede (2012)

*Manfreda verhoekiae García-Mend. (2011)

*Agave vernae Berger (1915)

*Agave verschaffeltii Lemaire (1868)

*Agave vestita S. Watson (1890)

*Agave vexans Trelease (1911)

Agave vicina Trelease (1913)

*Agave victoriae-reginae 'Compacta' Hort.

*Agave victoriae-reginae fa. compacta Hort.

*Agave victoriae-reginae fa. dentata Breitung (1960)

*Agave victoriae-reginae fa. ferdinandi-regis (Berger) Almsegeest et al. (2007)

*Agave victoriae-reginae fa. latifolia Breitung (1960)

*Agave victoriae-reginae fa. longifolia Breitung (1960)

*Agave victoriae-reginae fa. longispina Breitung (1960)

*Agave victoriae-reginae fa. nickelsiae (Roland-Gosselin) Trelease (1920)

*Agave victoriae-reginae fa. ornata Breitung (1960)

*Agave victoriae-reginae fa. stolonifera Jacobsen (1960)

*Agave victoriae-reginae fa. variegata Hort.

*Agave victoriae-reginae fa. viridis Breitung (1960)

Agave victoriae-reginae ssp. swobodae Halda (2002)

Agave victoriae-reginae ssp. victoriae-reginae T. Moore (1875)

*Agave victoriae-reginae var. compacta Hort.

*Agave victoriae-reginae var. laxior Berger (1912)

*Agave ×villae Pirotti ex Baker (1892)

Agave ×villarum André (1886)

Agave vilmoriniana Berger (1913)

*Agave virens Hort. Besaucèle ex Berger (1915)

*Agave virginica Linné (1753)

*Agave virginica Miller (1768)

*Manfreda virginica (Linné) Salisbury ex Rose (1899)

*Polianthes virginica (Linné) Shinners (1966)

*Agave virginica fa. tigrina (Engelmann) Palmer & Steyermark (1935)

*Polianthes virginica fa. tigrina (Engelmann) Shinners (1966)

Agave virginica ssp. lata (Shinners) Thiede & Eggli (2001)

*Manfreda virginica ssp. lata (Linné) O'Kennon & al. (1999)

Agave virginica ssp. virginica Linné (1753)

*?Agave virginica var. conduplicata (Jacobi & Bouché) Terracciano (1885)

*Agave virginica var. tigrina Engelmann (1875)

*Manfreda virginica var. tigrina (Engelmann) Rose (1903)

*Prochnyanthes viridescens S. Watson (1887)

?Agave viridissima Baker (1877)

*Agave vittata Regel (1858)

*Agave vivipara Lamarck (1783)

?Agave vivipara Salm-Dyck (1859)

*Agave vivipara Crantz (1766)

*Agave vivipara Hart (1890)

*Agave vivipara Dalzell & A. Gibson (1861)

*Agave vivipara Wight (1853)

*Agave vivipara Linné (1753)

Agave vivipara Linné (1753)

*Agave vivipara Oldendorp (1777)

*Aloe vivipara (Linné) Crantz (1766)

*Agave vivipara 'Marginata' Hort. ex Gentry ex P. Forster (1992)

*Agave vivipara var. cabaiensis Hummelinck (1936)

*Agave vivipara var. cuebensis Hummelinck (1936)

*Agave vivipara var. deweyana (Trelease) P. Forster (1992)

*Agave vivipara var. letonae (Taylor ex Trelease) P. Forster (1992)

*Agave vivipara var. nivea (Trelease) P. Forster (1992)

*Agave vivipara var. rubescens (Salm-Dyck) P. Forster (1992)

*Agave vivipara var. sargentii (Trelease) P. Forster (1992)

*Agave vivipara var. woodrowi (W. Watson) Berger (1915)

*Agave vivipara 'Variegata' (Trelease) P. Forster (1992)

Agave vizcainoensis Gentry (1978)

W

Agave wallisii Jacobi (1870)

Agave warelliana Baker (1877)

?Agave washingtonensis Baker & Rose ex Rose (1898)

?Agave watsonii Drummond & Wright (1907)

Agave weberi Cels ex Poisson (1901)

*Agave weingartii Berger (1915)

?Agave weissenburgensis Wittmach ex Baker (1889)

Agave wendtii Cházaro (1997)

Agave wercklei Weber ex Berger (1915)

*Agave whitackeri Hort. ex Jacobsen (1933)

?Agave wiesenbergensis Wittmack (1885)

?Agave wiesenburgensis Wittmack (1885)

*Agave wightii Drummond (1907)

*Agave wightii Drummond & Prain (1906)

?Agave wildringii Britton (1911)

Agave willdingii Todaro (1878)

Agave ×winteriana Berger (1915)

*Agave wislizeni Engelmann (1875)

*Agave wislizeni ssp. parrasana (Berger) Gentry (1975)

Agave wocomahi Gentry (1942)

X

*Agave xalapensis Roezl ex Jacobi (1865)

*Manfreda xilitlensis Matuda (1966)

*Agave xylacantha Hort. ex Baker (1877)

Agave xylonacantha Salm-Dyck (1859)

*Agave xylonacantha var. horizontalis Hort. ex Berger (1915)

*Agave xylonacantha var. latifolia Jacobi

*Agave xylonacantha var. macracantha Jacobi

*Agave xylonacantha var. mediopicta Trelease

*Agave xylonacantha var. torta Jacobi (1868)

*Agave xylonacantha var. vittata Jacobi

Y

*Agave yaquiana Trelease (1920)

Agave yavapaiensis Hodgson & Salywon (2013)

*Agave yuccaefolia Delaroche (1812)

*Agave yuccaefolia var. caespitosa Terracciano (1885)

*Agave yuccaefolia var. spicata (Cavanilles) Terracciano (1885)

*Agave yuccaefolia var. viridis Hort. Besaucèle ex Berger (1915)

Z

Agave zapopanensis (E. Solano & Ríos-Gómez) Thiede (2012)

*Polianthes zapopanensis E. Solano & Ríos-Gómez (2011)

*Agave zapupe Trelease (1907)

Agave zebra Gentry (1972)

*Agave zonata Trelease (1914)

?Agave zuccarinii Otto (1842)

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