Home/Species/ Lemmon's Wild Cabbage

Caulanthus lemmonii

S. Wats.

Lemmon's Wild Cabbage

G3Vulnerable Found in 4 roadless areas NatureServe Explorer →

G3VulnerableGlobal Rank

Identity

Unique IDELEMENT_GLOBAL.2.143406

Element CodePDBRA0M0E0

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicendemic to a single state or province

KingdomPlantae

PhylumAnthophyta

ClassDicotyledoneae

OrderCapparales

FamilyBrassicaceae

GenusCaulanthus

Synonyms

Caulanthus coulteri var. lemmonii(S. Wats.) Munz

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

Guillenia lemmonii (or Caulanthus lemmonii), a California endemic, is a different plant from Streptanthus lemmonii Wats., an Arizona endemic, despite the former use of the name Streptanthus lemmonii (Wats.) Jepson for the California plant. The California plant was called Caulanthus lemmonii in the 1994 Kartesz checklist, and is called Guillenia lemmonii in the 1999 Kartesz dataset. It is also considered a California endemic by Rollins (1993), who cites the synonym S. lemmonii (Wats.) Jepson. Thus, these two uses of "Streptanthus lemmonii" represent two different taxa, with the Jepson combination being later. The California plant has also been treated as Caulanthus coulteri var. lemmonii. LEM 31Mar97, rev. 7Feb01.

Conservation Status

Rank MethodLegacy Rank calculation - Excel v3.1x

Review Date2013-09-19

Change Date2013-09-19

Edition Date2013-09-19

Edition AuthorsR. Bittman

Range Extent20,000-200,000 square km (about 8000-80,000 square miles)

Number of Occurrences21 - 80

Rank Reasons

Caulanthus lemmonii is an annual herb in the mustard family. There are 62 mapped occurrences (2013) and approximately 10 of them are ranked A or B. Several are located in fairly remote areas with few threats. Some sites do list threats such as grazing, road work, weed encroachment, pigs, and improper fire. Some may be protected in preserved areas in the Carrizo Plains area.

Range Extent Comments

The EOO was calculated as 27,283 sq km.

Occurrences Comments

There are 62 mapped occurrences currently and a few more in the backlog (NatureServe element occurrence data as of 2013; CNDDB 2013).

Threat Impact Comments

The threat level is estimated as medium and threats listed on occurrences include grazing, road work, weeds, improper burning regime, military operations (at one site), and feral pig damage.

Ecology & Habitat

Habitat

Open, grassy areas; on hillside slopes and in fields, canyons, and arroyos. Soils include alkaline soils, shaley clay, sandstone talus, and decomposed serpentine. Predominantly found within Valley Grassland community, occasionally in Pinyon-Juniper Woodland. 80 - 1600 m.

Terrestrial Habitats

Forest/WoodlandWoodland - ConiferGrassland/herbaceous

Other Nations (1)

United StatesN3

Province	Rank	Native
California	S3	Yes

Plant Characteristics

Economic Value (Genus)No

Roadless Areas (4)

California (4)

Area	Forest	Acres
Black Mountain	Los Padres National Forest	16,818
Cuyama	Los Padres National Forest	19,631
Fox Mountain	Los Padres National Forest	52,072
Lpoor Canyon	Los Padres National Forest	13,762

References (8)

CalFlora. 2005. Information on California plants for education, research and conservation. Berkeley, California: The CalFlora Database [web application]. Available: http://www.calflora.org/. (Accessed 2005)
California Native Plant Society (CNPS). 2001. Inventory of Rare and Endangered Plants of California (sixth edition). Rare Plant Scientific Advisory Committee, David P. Tibor, Convening Editor. California Native Plant Society. Sacramento, CA. x + 388pp.
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.
Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 pp.
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.
Munz, P.A., with D.D. Keck. 1959. A California flora. Univ. California Press, Berkeley. 1681 pp.
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.
Twisselmann, E.C. 1967. A flora of Kern County, California. California Native Plant Society, Sacramento. 395 pp.