Dentaria heterophylla Nutt.
Cardamine angustata has basal leaves which can be as large as 24 centimeters, consisting of three leaflets borne on a 3 to 16 centimeter long petiole. The erect unbranched stem is 12 to 30 centimeters tall, and can be smooth or pubescent. There are two or three leaves on the stem, which are different in morphology from the basal leaves, they are also divided into three leaflets, but these are only 2 to 7 centimeters long and 3 to 6 millimeters wide. The flowers are borne in a raceme. The petals are 9 to 18 millimeters long and 2 to 5 millimeters wide. The fruit is linear, 2.5 to 4 centimeters long and 1.5 to 2.5 millimeters wide.
Distribution and habitat
Cardamine angustata is widely distributed in the eastern United States, although local distribution may be spotty. It has been recorded in Alabama, Arkansas, Washington, D.C., Delaware, Georgia, Indiana, Kentucky, Maryland, Mississippi, North Carolina, New Jersey, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Virginia, and West Virginia. In Virginia, it grows in habitats such as well-drained floodplain forests and mesic to dry-mesic upland forests. The presence of this species is dependent on appropriate habitat, and it may be eliminated from an area by development, changes in land use, or competition with invasive species.
- "Cardamine angustata O.E.Schulz - The Plant List". Retrieved January 25, 2014. The Plant List (2013). Version 1.1. Published on the Internet; http://www.theplantlist.org/
- "Plants Profile for Cardamine angustata (slender toothwort)". Retrieved January 25, 2014. USDA, NRCS. 2014. The PLANTS Database (http://plants.usda.gov)[permanent dead link]. National Plant Data Team, Greensboro, NC 27401-4901 USA.
- "Cardamine angustata in Flora of North America @ efloras.org". Retrieved January 30, 2014. 'eFloras (2008). Published on the Internet (http://www.efloras.org). Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
- "Digital Atlas of the Virginia Flora | Cardamine angustata O. E. Schulz". Retrieved January 25, 2014. Virginia Botanical Associates. (2014). Digital Atlas of the Virginia Flora (http://www.vaplantatlas.org)[permanent dead link]. c/o Virginia Botanical Associates, Blacksburg.