Berchemia racemosa Sieb. & Zucc.

Picture 1 in Japan, Honshu, Hibara Lake, June 2010
Picture 3 in Japan, Honshu, road to Mt. Rokko, May 2008

Publication in Abh. Math.-Phys. Cl. Königl. Bayer. Akad. Wiss. 4(2):147 (1843)