*Causonis japonica (Thunberg) Rafinesque. Phen: May-Jun; Aug-Sep. Hab: Disturbed areas, suburban woodlands. Dist: Native of temperate and subtropical se. Asia. Reported for NC from several suburban areas, as in Forsyth County (Krings & Richardson 2006) and Mecklenburg, Davidson, and Franklin counties (Soule et al. 2008). Reported as naturalized in AL (Hansen & Goertzen 2006), MS, LA, and TX. Reports of Nekemias megalophylla (Diels & Gilg) J. Wen & Z.L. Nie as naturalized in MS are misidentifications based on Causonis japonica (S.W. Leonard, pers. comm., 2006).
Origin/Endemic status: E. and se. Asia
Synonymy: = FNA12; = Cayratia japonica (Thunb.) Gagnep. – K1, K3, K4; = n/a – RAB; > Cayratia japonica (Thunb.) Gagnep. var. japonica – Chen, Ren, & Wen (2007)