This has a highly fragmented southeastern range, with concentrations on coastal sands and calcareous soils, including c. Tenn. (Ch, FNA 3, K, W). It is similar to the more widespread eastern species, virginiana, and has probably been overlooked in c. Ky. (D. Estes, pers. comm.). C. catesbyana differs only in its more divided, pinnate to bipinnate leaves, with (3 )5-7 distinct leaflets (versus only 3), and its less numerous carpels per flower (18-35 versus 40-60). The only accessed and verified Ky. colls. are from ?CLIN (M. Gorton #544 & 896 at EKY), ESTI (D. Estes #10692 at APSC & BEREA) and WARR (K. Nicely & Gough #3069 at NCSC, NCU & WKY); identification of the CLIN colls. remains somewhat uncertain.