Caulanthus barnebyi explained

Caulanthus barnebyi, the Black Rock wild cabbage, is a plant species endemic to a small region in the US State of Nevada. It is known only from the Black Rock Mountains in Humboldt and Pershing Counties in the northwestern part of the state. It grows on dry, rocky slopes and outcrops at elevations of 1300m-1500mm (4,300feet-4,900feetm).^{[1] [2] [3]}

Caulanthus barnebyi is a glabrous, perennial herb up to 110cm (40inches) tall. It has basal leaves up to 16cm (06inches) long, plus smaller leaves farther up the stem. Flowers are in a dense raceme, with purple sepals and white petals.^{[1] [4] [5] [6]}

Notes and References

1. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250094873 Flora of North America v 7 p 679
2. http://bonap.net/MapGallery/County/Caulanthus%20barnebyi.png BONAP (Biota of North America Project) floristic synthesis map, Caulanthus barnebyi
3. http://heritage.nv.gov/sites/default/files/atlas/atlastxt.pdf Morefield, J. D. (editor). 2001. Nevada Rare Plant Atlas . Carson City: Nevada Natural Heritage Program, compiled for the U.S. Department of Interior, Fish and Wildlife Service, Portland, Oregon and Reno, Nevada.
4. http://www.tropicos.org/ImageFullView.aspx?imageid=24899 photo of isotype of Caulanthus barnebyi at Missouri Botanical Garden
5. Rollins, R. C. & P. K. Holmgren. 1980. A new species of Caulanthus (Cruciferae) from Nevada. Brittonia 32(2): 148–151.
6. Holmgren, N. H., P. K. Holmgren & A.J. Cronquist. 2005. Vascular plants of the intermountain west, U.S.A., subclass Dilleniidae. 2(B): 1–488. In A.J. Cronquist, A. H. Holmgren, N. H. Holmgren, J. L. Reveal & P. K. Holmgren (eds.) Intermountain Flora. Hafner Pub. Co., New York