Daphniphyllum teijsmannii Zoll.

from Japan, Ito-shi (pictures 1 & 2)
in Japan, Awaji, May 2008 (picture 3)
in South Korea, Gayasan Wildflower Botanical Garden, September 2011 (picture 4)

Description in Tijdschr. Ned.-Indië 27: 52 (1864)