Cardamine angustata O.E. Schulz. Eastern Slender Toothwort. Phen: Mar-May; Apr-Jun. Hab: Rich, mesic forests. Dist: NJ and IN south to n. GA, c. TN, and ne. MS.

Origin/Endemic status: Native

Taxonomy Comments: Material sometimes considered merely disjunct in the Ouachita Mountains of AR, or named as a variety, var. ouachitana E.B. Smith, is apparently specifically distinct and not closely related (C.T. Witsell, pers. comm., 2017); it is here treated as Cardamine species 1.

Synonymy ⓘ: = C, Pa, Va, Al-Shehbaz (1988a), Sweeney & Price (2001); = Cardamine angustata O.E.Schulz var. angustata – RAB; = Dentaria heterophylla Nutt. – F, G, S, S13, Tat, Tn, W; < Cardamine angustata O.E.Schulz – FNA7, K3, K4, Rollins (1993)

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FAC
• Eastern Mountains and Piedmont: FACU (taxonomic split from wetland indicator species)
• Midwest: FAC (taxonomic split from wetland indicator species)
• Northcentral & Northeast: FACU (taxonomic split from wetland indicator species)

Heliophily ⓘ: 4