CPC National Collection Plant Profile
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CPC National Collection Plant Profile
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Descurainia torulosa
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Descurainia torulosa is Not Sponsored |
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Primary
custodian for this plant in the CPC National Collection of Endangered
Plants is: |
Thomas Grant contributed to this Plant Profile. |
| Descurainia torulosa | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Descurainia torulosa is a small multi-stemmed biennial or short lived perennial in the mustard family. Tiny yellow flowers grow from the stems' tips and bloom in June. In late July the plant produces linear, hairy fruits, 8-15 mm long. (Atwood 1994). The tansy mustard does not seem to tolerate competition or excessive exposure to the sun or wind and grows under slight overhangs or in small cavities in volcanic rock. However, it has been found on fully exposed habitats such as small ledges (Marriott 1991). The remaining known populations are scattered and extremely small making this species quite vulnerable (Dorn, 1989). There is much confusion about the status of this species. Prior to 1990 there were only four sites reported for this species in the world, all in Wyoming. When visited in 1989, one population was not relocated and another was determined to be a separate taxon.
State Range
Distribution
Number Left
State/Area Protection
Ecological Relationships
Threats
Current Research Summary
Current Management Summary
Research Management Needs
Ex Situ Needs
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References |
Dorn, R.D. 1992. Vascular Plants of Wyoming. Cheyenne, WY: Mountain West Publishing. |
Kartesz, J.T. 1993. Species distribution data for vascular plants of 70 geographical areas, from unpublished data files at the North Carolina Botanical Garden. |
Kartesz, J.T. 1996. Species distribution data at state and province level for vascular plant taxa of the United States, Canada, and Greenland (accepted records), from unpublished data files at the North Carolina Botanical Garden. |
Rollins, R.C. 1993. The Cruciferae of continental North America: Systematics of the mustard family from the Arctic to Panama. Stanford, California: Stanford University Press. 976p. |
USFS. 1990. Idaho and Wyoming endangered and sensitive plant field guide. Ogden, UT: U.S. Forest Service, Intermountain Region. 192p. |
Kartesz, J.T. 1999. A synonymized checklist of the vascular flora of the U.S., Canada, and Greenland. In: Kartesz, J.T.; Meacham, C.A., editors. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden. Chapel Hill, NC. |
Fertig, W. (2000). State Species Abstracts. Wyoming Natural Diversity Database. http://uwadmnweb.uwyo.edu/wyndd/Plants/plant_species.htm. Accessed: 2002. |
Arnold, R.N.; Murray, M.W.; Gregory, E.J.; Smeal, D. 1990. Weed control in established alfalfa Medicago-sativa. Applied Agricultural Research. 5, 3: 195-197. |
Bricker, J.S.; Brown, G.K.; Lewis, T.L.P. 2000. Status of Descurainia torulosa (Brassicaceae). Western North American Naturalist. 60, 4: 426-432. |
Dorn, R.D. 1999. Our Most Endangered Plants Have Yet to be Discovered. Castilleja: The Newsletter of the Wyoming Native Plant Society. 18, 4: 6-7. |
Henry, T.J. 1991. Melanotrichus whitehead new species crucifer-feeding plant bug from the southeastern USA with new records for the genus and a key to the species of eastern North America Heteroptera miridae orthotylinae. Proceedings of the Entomological Society of Washington. 93, 2: 449-456. |
Mayland, H.F.; Robbins, C.W. 1994. Sulfate uptake by salinity-tolerant plant species. Communications in Soil Science & Plant Analysis. 25, 13-14: 2523-2541. |
McKendrick, Jay. 2000. Northern tansy mustard fills a niche. Agroborealis. 32, 1: 15-20. |
Nash, M.S.; Whitford, W.G.; de Soyza, A.G.; Van Zee, J.W.; Havstad, K.M. 1999. Livestock activity and Chihuahuan Desert annual-plant communities: Boundary analysis of disturbance gradients. Ecological Applications. 9, 3: 814-823. |
O'Brien, C.W.; Marshall, G.B. 1987. Unusual larval sand tube construction in the weevil genus Cleonidius in West Texas USA. Southwestern Entomologist. 12, 4: 357-360. |
Rollins, R.C. 1983. Studies in the Cruciferae of western North America. Journal of the The Arnold Arboretum of Harvard University. 64, 4: 491-501. |
Rose, J.N. 1912. Tumamoca, a new genus of Cucurbitaceae. Contr. U.S. National Herbarium, Washington, D.C. 16 |
USFWS. 1995. Notice of Reclassification of 32 Candidate Species. Federal Register. 60, 126: 34225-34227. |
Bricker, J.S.; Brown, G.K. 1998. ITS-RFLP analysis of Descurainia torulosa (Brassicaceae). Report prepared for the Bureau of Land Management Wyoming State office. Department of Botany, University of Wyoming, Laramie WY. |
Dorn, R.D. 1989. Report on the State of Descurainia torulosa, a Candidate Threatened Species. Denver, CO: U.S. Fish and Wildlife Service. p.13 + appendices. |
Fertig, W.; Refsdal, C.; Whipple, J. 1994. Wyoming rare plant field guide. Cheyenne, Wyoming: Wyoming Rare Plant Technical Committee. |
Marriot, H. 1991. Status Report for Descurainia torulosa (Wyoming Tansymustard). Prepared for Bridger-Teton and Shoshone National Forests by Hollis Marriott, Wyoming Natural Diversity Database, and the Nature Conservancy. P.O. 43-02S2-9-0864. |
Marriott, H.J. 1992. Status report for Descurainia torulosa (Wyoming tansy mustard), Sweetwater County, Wyoming. Laramie, WY: Bureau of Land Management, Rock Springs District by the Wyoming Natural Diversity Database. |
Toolin, L.J. 1982. Status Report: Tumamoca macdouglii. Albuquerque, New Mexico: Report to the U.S. Fish and Wildlife Service Office of Endangered Species. |
| This profile was updated on 3/4/2010 |