*Rhamnus davurica Pallas. Davurian Buckthorn. Phen: Apr-Jun. Hab: Suburban woodlands, fields, floodplains, rarely naturalized but potentially very invasive. Dist: Native of e. Asia (n. China). Reported from Clarke and Frederick counties, VA (Virginia Botanical Associates 2019). Reported from suburban areas near Louisville, KY, and Knoxville, TN (D. Estes, pers. comm.).

Origin/Endemic status: E. and se. Asia

Synonymy: = GrPl, Il, Pa, Tn, Va, Hauenschild et al (2016b); = n/a – RAB; = Rhamnus citrifolia (Weston) W.J.Hess & Stearn – C, illegitimate name; > Rhamnus davurica Pall. ssp. davurica – FNA12, K1, K3, K4, NE; > Rhamnus davurica Pall. ssp. nipponica (Makino) Kartesz & Gandhi – K1, K3, K4; > Rhamnus davurica Pall. var. nipponica Makino

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