Roadless Areas
Home/Species/ Inyo County Mariposa Lily

Calochortus excavatus

Greene

Inyo County Mariposa Lily

G2Imperiled Found in 9 roadless areas NatureServe Explorer →
G2ImperiledGlobal Rank
Very high - mediumThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.134041
Element CodePMLIL0D0F0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassMonocotyledoneae
OrderLiliales
FamilyLiliaceae
GenusCalochortus
Other Common Names
Inyo County Star-tulip (EN) Inyo County star-tulip (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.
Conservation Status
Rank MethodLegacy Rank calculation - Excel v3.1x
Review Date2016-12-06
Change Date2011-01-25
Edition Date2012-06-13
Edition AuthorsG. Davis
Threat ImpactVery high - medium
Range Extent250-1000 square km (about 100-400 square miles)
Number of Occurrences21 - 80
Rank Reasons
Endemic to California, Calochortus excavatus is known from Inyo and Mono Counties. Threats include groundwater pumping, development, road maintenance, and grazing.
Range Extent Comments
California endemic occuring in Inyo and Mono Counties.
Occurrences Comments
67 total occurrences and of those 58 are extant.
Threat Impact Comments
Roads, grazing, wild horses, recreation, hydrological changes.
Ecology & Habitat

Habitat

Occurs in shadscale scrub, grassy meadows; alkaline, mesic. Grassy meadows in shadscale scrub; Elevation: 1300-2000 m (Jepson Flora Project 2017).
Terrestrial Habitats
Grassland/herbaceousDesert
Other Nations (1)
United StatesN2
ProvinceRankNative
CaliforniaS2Yes
Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)No
Roadless Areas (9)
California (6)
AreaForestAcres
Boundary Peak (CA)Inyo National Forest210,884
Excelsior (CA)Inyo National Forest45,607
PaiuteInyo National Forest58,712
Soldier CanyonInyo National Forest40,589
TinemahaInyo National Forest27,060
Wonoga Pk.Inyo National Forest11,272
Nevada (3)
AreaForestAcres
Boundary Peak (NV)Inyo National Forest21,851
Excelsior (NV)Inyo National Forest7,744
HuntoonHumboldt-Toiyabe National Forest36,281
References (4)
  1. 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.
  2. Jepson Flora Project (eds.) 2015. Jepson Online Interchange for California Floristics. Accessed online: http://ucjeps.berkeley.edu/interchange/
  3. 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.
  4. Skinner, M.W., and B.M. Pavlik, eds. 1997 (1994). Inventory of rare and endangered vascular plants of California. 1997 Electronic Inventory Update of 1994 5th edition, California Native Plant Society, Special Publication No. 1, Sacramento.