Prunus ussuriensis and Prunus triflora are alternative names of Prunus salicina (a.k.a. Japanese plum). Luther Burbank used this species a lot for his breeding work. Most fruits known as “Asian plums” are either P. salicina or hybrids of P. salicina with other species like P. simonii, P. americana, P. cerasifera, etc.
4 Likes