Roadless Areas
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Caulanthus simulans

Payson

Payson's Wild Cabbage

G4Apparently Secure Found in 9 roadless areas NatureServe Explorer →
G4Apparently SecureGlobal Rank
MediumThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.156911
Element CodePDBRA0M0H0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
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
Rank MethodLegacy Rank calculation - Excel v3.1x
Review Date2014-08-18
Change Date2014-08-18
Edition Date2014-08-18
Edition AuthorsRussell, C., rev. D. Gries, rev. R. Bittman (2014)
Threat ImpactMedium
Range Extent5000-20,000 square km (about 2000-8000 square miles)
Number of Occurrences81 - 300
Rank Reasons
Endemic to California, Caulanthus simulans is known from over 80 occurrences. Urbanization, grazing, road construction, and non-native plants are threats to this species.
Range Extent Comments
Known only from the Santa Rosa Mountains in Riverside and San Diego counties, California.
Occurrences Comments
There are 31 mapped sites, 188 unprocessed sources (CNDDB 2014) and 111 Consortium of California Herbaria (2014) records.
Threat Impact Comments
Threats include urbanization, grazing, weeds, and roads (CNDDB 2014).
Ecology & Habitat

Diagnostic Characteristics

Caulanthus simulans can be distinguished by its yellowish calyx and by its distinctly but shallowly 2-lobed stigma. The plant is evidently hairy (Munz, 1959).

Habitat

Found on dry slopes, especially on burns (Munz, 1959). Chaparral and coastal scrub.
Terrestrial Habitats
Shrubland/chaparral
Other Nations (1)
United StatesN4
ProvinceRankNative
CaliforniaS4Yes
Threat Assessments
ThreatScopeSeverityTiming
1 - Residential & commercial development———
1.1 - Housing & urban areas———
2 - Agriculture & aquaculture———
2.3 - Livestock farming & ranching———
4 - Transportation & service corridors———
4.1 - Roads & railroads———
8 - Invasive & other problematic species, genes & diseases———
8.1 - Invasive non-native/alien species/diseases———

—

Plant Characteristics
DurationANNUAL
Economic Value (Genus)No
Roadless Areas (9)
California (9)
AreaForestAcres
Barker ValleyCleveland National Forest11,940
Cactus Springs BSan Bernardino National Forest3,106
Cahuilla MountainSan Bernardino National Forest6,952
CalienteCleveland National Forest5,953
City CreekSan Bernardino National Forest9,997
Deep CreekSan Bernardino National Forest23,869
Horse Creek RidgeSan Bernardino National Forest8,969
Pyramid Peak BSan Bernardino National Forest7,194
Rouse HillSan Bernardino National Forest13,745
References (8)
  1. Abrams, L. 1944. Illustrated flora of the Pacific states: Washington, Oregon, and California. Vol. 2. Polygonaceae to Krameriaceae. Stanford Univ. Press, Stanford, California. 635 pp.
  2. California Natural Diversity Database (CNDDB). 2014. RareFind Version 5. California Department of Fish and Game, Sacramento.
  3. 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.
  4. 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.
  5. Munz, P.A., with D.D. Keck. 1959. A California flora. Univ. California Press, Berkeley. 1681 pp.
  6. 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.
  7. Smith, J.P., and K. Berg. 1988. California native plant society's inventory of rare and endangered vascular plants of California. 4th edition. California Native Plant Society, Sacramento. 168 pp.
  8. Wiggins, I.L. 1980. Flora of Baja California. Stanford Univ. Press, Stanford, California. 1025 pp.