Rubus microphyllus L. f.

in Japan, Honshu, Kawaguchi lake, May 2008 (all pictures except n°4, 7 & 8)
in Japan, Tokyo, May 2008 (picture 4)
in Japan, Honshu, Kitakata, June 2010 (picture 7)

Description in Suppl. Pl. 263. 1782 [1781 publ. Apr 1782]