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Caulanthus glaucus

S. Wats.

Glaucous Cabbage

G3Vulnerable (G3?) Found in 5 roadless areas NatureServe Explorer →
G3VulnerableGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.153813
Element CodePDBRA0M090
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderCapparales
FamilyBrassicaceae
GenusCaulanthus
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
Review Date2009-03-11
Change Date2002-10-09
Edition Date2009-03-11
Edition AuthorsGravuer, K.
Range Extent5000-200,000 square km (about 2000-80,000 square miles)
Rank Reasons
A southwestern Great Basin endemic known from western Nevada (Esmeralda, Mineral, and adjacent Nye counties) and adjacent eastern California (Inyo and Mono counties). Occurrences have not been mapped in either state and abundance is poorly known. At least about 40 distinct herbarium specimens have been collected, though many were collected some time ago. Has been described as "rare" in Nevada and "uncommon" in California, although it was found to be too common for inclusion in the California Native Plant Society inventory. Grows in rocky settings (sometimes in crevices) such as slopes, hillsides,outcrops, canyon walls, and cliffs within desert scrub and pinyon-juniper woodland communities between 1400 and 2500 meters elevation.
Range Extent Comments
Endemic to the southwestern Great Basin, in Esmeralda, Mineral, and adjacent Nye counties, Nevada and in the White and Inyo Mountains and northern Desert Mountains (Grapevine, Last Chance mountains) bioregions [Inyo and Mono counties], California (Hickman 1993, Holmgren et al. 2005).
Occurrences Comments
Occurrences have not been mapped in either Nevada or California. A search of online databases located approximately 40 distinct herbarium specimens, about half of which had been collected before 1970. It does not appear that targeted field inventories have been conducted for this species; surveys would likely locate additional sites.
Ecology & Habitat

Diagnostic Characteristics

This is the only California species of Caulanthus with stigma lobes over placentas rather than valves (Hickman 1993).

Habitat

Open, steep, dry rocky or gravelly slopes and hillsides; rock outcrops (often in crevices); canyon walls; limestone or shaley cliffs; and gulches. Surrounding plant communities include desert scrub and pinyon-juniper woodland. 1400-2500 m.
Terrestrial Habitats
Forest/WoodlandWoodland - ConiferDesertBare rock/talus/screeCliff
Other Nations (1)
United StatesN3
ProvinceRankNative
CaliforniaSNRYes
NevadaS3Yes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (5)
California (3)
AreaForestAcres
Black CanyonInyo National Forest32,421
Boundary Peak (CA)Inyo National Forest210,884
Soldier CanyonInyo National Forest40,589
Nevada (2)
AreaForestAcres
Bald Mtn.Humboldt-Toiyabe National Forest41,598
Boundary Peak (NV)Inyo National Forest21,851
References (8)
  1. California Native Plant Society (CNPS). 2009. Inventory of Rare and Endangered Plants. California Native Plant Society. Sacramento, CA. Online. Available: http://www.cnps.org/inventory (accessed 2009).
  2. Flora of North America Editorial Committee (FNA). 2010. Flora of North America north of Mexico. Vol. 7. Magnoliophyta: Salicaceae to Brassicaceae. Oxford University Press, New York. xxii + 797 pp.
  3. Hall, C.A., Jr. (editor). 1991. Natural history of the White-Inyo Range, eastern California. Berkeley: University of California Press. 536 pp.
  4. Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 pp.
  5. Holmgren, N.H., P.K. Holmgren, and A. Cronquist. 2005. Intermountain flora. Volume 2, part B. Subclass Dilleniidae. The New York Botanical Garden Press. 488 pages.
  6. Kartesz, J.T. 1988. A flora of Nevada. Ph.D. dissertation. Univ. of Nevada, Reno. 3 volumes. 1729 pp.
  7. 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.
  8. Rollins, R.C. 1993a. The Cruciferae of continental North America: Systematics of the mustard family from the Arctic to Panama. Stanford Univ. Press, Stanford, California. 976 pp.