'Princess Kay'. Branch in full flower - stunning. Helsinki bot. g. (Kaisan.), Finland. Planted. 2007-05-18.Prunus nigra Ait. Engl.: Canadian plum, black plum, Canada plum. Deu.: Bitterkirsche, Kanada-Pflaume. Suom.: hurmeluumu. Sven.: kanadaplommonPersonal use? Non-commercial use? Commercial use? Read the Fine Print. Comments? Tell me.