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Agave havardiana, Photo: Michael Lahanas

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Ordo: Asparagales

Familia: Asparagaceae
Subfamilia: Agavoideae
Genus: Agave
Species: Agave havardiana
Name

Agave havardiana Trel., 1911
Distribution
Native distribution areas:

Continental: Northern America
Regional: Mexico
Mexico Northeast
Regional: Southern Central USA
Texas

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References

Trelease, W., 1911. Report (Annual) of the Missouri Botanical Garden. St. Louis 22:91.

Links

Govaerts, R. et al. 2019. Agave havardiana in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2019 Jan. 04. Reference page.
International Plant Names Index. 2019. Agave havardiana. Published online. Accessed: Jan. 04 2019.
The Plant List 2013. Agave havardiana in The Plant List Version 1.1. Published on the internet. Accessed: 2019 Jan. 04.
Tropicos.org 2019. Agave havardiana. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Jan. 04.
USDA, ARS, Germplasm Resources Information Network. Agave havardiana in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 08-Apr-12.

Vernacular names
English: Havard's century plant

Agave havardiana is a plant species native to the Big Bend area of western Texas as well as Chihuahua and Coahuila. It prefers grassy to rocky slopes or woodlands at elevations of 1200–2000 m.[2]

Agave havardiana is an acaulescent species forming rosettes low to the ground, sometimes creating suckers but not forming large colonies like some other species. Leaves are up to 70 cm (28 inches) long, with teeth along the margins and at the tip. Flowering stalks can be up to 7 m (23 feet) tall, with yellow to yellow-green flowers. Fruits are dry, oblong, up to 6 cm (2.4 inches) long.[3][4]

This species is under threat from habitat loss, mostly for cattle ranching.[1]
References

Hernández Sandoval, L.; Sandoval-Gutiérrez, D.; Hernández-Martínez, M.; Sánchez, E.; González-Elizondo, M.; Zamudio, S.; Matías-Palafox, M. (2020). "Agave havardiana". IUCN Red List of Threatened Species. 2020. Retrieved 25 March 2021.
Flora of North America vol 26 p 458.
Trelease, William. Rep. (Annual) Missouri Bot. Gard. 22: 91, plates 84–86. 1912.
Gentry, H. S. 1982. Agaves of Continental North America. Tucson.

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