Cerasus serrulata ‘Sonosato-kizakura,’ Ueno, Tokyo, 4/16/2025
https://en.wikipedia.org/wiki/Prunus_serrulata; https://www.ootk.net/cgi/shikihtml/shiki_4021.htm (Japanese); https://ja.wikipedia.org/wiki/%E3%82%AE%E3%83%A7%E3%82%A4%E3%82%B3%E3%82%A6 (Japanese)