Cardamine micranthera Rollins (1940:87)

Small-anther bittercress



Taxonomy & Nomenclature



Conservation Status

Last record: early 1960's (Murdock & Weakley, 1991:1)

Rediscovered in 1985 (Murdock & Weakley, 1991:1)



North Carolina & Virginia, USA


Biology & Ecology










Original scientific description:

Rollins, R. C. (1940). A new Cardamine from North Carolina. Castanea 5(5): 87-88.


Other references:

Flora of North America Editorial Committee. (2010). Flora of North America North of Mexico. Vol. 7. Magnoliophyta: Salicaceae to Brassicaceae. Oxford University Press, New York. xxii + 797 pp.

Fowler, J. (2016). Specialist Bees of the Mid-Atlantic: Host Plants and Habitat Conservation. The Maryland Entomologist 6(4):2-40.

Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.

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.

Murdock, N. and Weakley, A. (1991). Recovery plan for small-anthered bittercress (Cardamine micranthera Rollins). U.S. Fish and Wildlife Service, Southeast Region, Atlanta, GA. 22 pp.

NCA. (1996). Annual Report for the Center for Plant Conservation Taxa in the National Collection. The North Carolina Arboretum. p.5.

Radford, A. E., Ahles, H. E. and Bell, C. R. (1968). Manual of the vascular flora of the Carolinas. Univ. North Carolina Press, Chapel Hill, NC. 1183 pp.

Rollins, R. C. (1993). The Cruciferae of continental North America: Systematics of the mustard family from the Arctic to Panama. Stanford Univ. Press, Stanford, California. 976 pp.

Tuttle, J. (2019). Management Guidance for Endangered Species, Cardamine micranthera (Small-anthered bittercress). Report prepared for United States Forest Service, Forest Stewardship Program.

USFWS (U.S. Fish and Wildlife Service). (1989). Small-anthered bittercress determined to be endangered. Federal Register 54(182): 38947-38949.

USFWS (U.S. Fish and Wildlife Service). (2016). Small-anthered bittercress (Cardamine micranthera) 5-year review: Summary and Evaluation. USFWS Southeast Region, Asheville Ecological Field Services Office, Asheville, North Carolina.

Van Alstine, N. E. and Killeffer, S. E. (1999). Status survey for Cardamine micranthera Rollins (small-anthered bittercress) in Virginia. Natural Heritage Tech. Rept. 99-23. Virginia Department of Conservation and Recreation, Division of Natural Heritage, Richmond, VA. 45 pp.

Wieboldt, T. F. (2002). Molecular study of small-anthered bittercress, Cardamine micranthera. Final Report, Dec. 14, 2002, prepared for Virginia Department of Agriculture and Consumer Services, Office of Plant and Pest Services. 9 pp.


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