Roadless Areas
Home/Species/ Utah Agave

Agave utahensis

Engelm.

Utah Agave

G4Apparently Secure Found in 14 roadless areas NatureServe Explorer →
G4Apparently SecureGlobal Rank
Least concernIUCN
Identity
Unique IDELEMENT_GLOBAL.2.157120
Element CodePMAGA010S0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
IUCNLeast concern
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassMonocotyledoneae
OrderAsparagales
FamilyAsparagaceae
GenusAgave
Other Common Names
Utah agave (EN) Utah Century Plant (EN)
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Taxonomic Comments
According to the treatment in FNA (vol. 26, 2002), there are two subspecies in Agave utahensis, A. utahensis ssp. kaibabensis and A. utahensis ssp. utahanensis, with no varieties within subspecies kaibabensis, and three varieties within subspecies utahensis: (var. eborispina, var. nevadensis, and var. utahensis). More recent treatments such as Baldwin et al. (2012) and Welsh et al. (2015) simply recognize A. utahensis with four varieties distinguished: var. eborispina, var. kaibabensis, var. nevadensis, and var. utahensis.
Conservation Status
Review Date1997-09-11
Change Date1997-03-18
Edition Date1997-09-11
Edition AuthorsKMW-NVHP
Ecology & Habitat
Other Nations (1)
United StatesNNR
ProvinceRankNative
CaliforniaSNRYes
UtahSNRYes
Navajo NationSNRYes
NevadaS3Yes
ArizonaS3Yes
Plant Characteristics
Economic Value (Genus)Yes
Roadless Areas (14)
Arizona (2)
AreaForestAcres
Coconino RimKaibab National Forest7,213
Red PointKaibab National Forest7,139
Nevada (7)
AreaForestAcres
Angel Peak NorthHumboldt-Toiyabe National Forest12,577
Angel Peak SouthHumboldt-Toiyabe National Forest6,540
Charleston - Macks CynHumboldt-Toiyabe National Forest11,378
La Madre - ProspectHumboldt-Toiyabe National Forest278
Lovell Summit SouthHumboldt-Toiyabe National Forest28,455
PotosiHumboldt-Toiyabe National Forest5,145
Stirling - WheelerHumboldt-Toiyabe National Forest3,044
Utah (5)
AreaForestAcres
Bull ValleyDixie National Forest10,911
Cedar BenchDixie National Forest8,915
CottonwoodDixie National Forest6,754
Moody WashDixie National Forest31,835
Pine Valley MountainsDixie National Forest57,673
References (9)
  1. Baldwin, B. G., D. H. Goldman, D. J. Keil, R. Patterson, T. J. Rosatti, and D. H. Wilken, eds. 2012. The Jepson manual: vascular plants of California. 2nd edition. University of California Press, Berkeley, CA. 1568 pp.
  2. Flora of North America Editorial Committee (FNA). 2002a. Flora of North America north of Mexico. Vol. 26. Magnoliophyta: Liliidae: Liliales and Orchidales. Oxford Univ. Press, New York. xxvi + 723 pp.
  3. Global Biodiversity Information Facility (GBIF). 2026. Global Biodiversity Information Facility (GBIF) data portal. Online. Available: https://www.gbif.org/ (accessed 2026).
  4. iNaturalist. 2026. Online. Available: https://www.inaturalist.org (accessed 2026).
  5. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  6. NatureServe. 2026. NatureServe Network Biodiversity Location Data. NatureServe, Arlington, Virginia.
  7. <p>NatureServe's Rapid Analysis of Rarity and Endangerment Conservation Assessment Tool (RARECAT). 2025. Version: 2.1.1 (released April 04, 2025).</p>
  8. Southwest Environmental Information Network (SEINet). 2026. Collections Databases. Online. Available: https://swbiodiversity.org/seinet/collections/index.php (accessed 2026).
  9. Welsh, S.L., N.D. Atwood, S. Goodrich, and L.C. Higgins. (Eds). 2015. A Utah flora, fifth edition, revised 2015. Monte L. Bean Life Science Museum, Provo, Utah. 987 pp.