Born in 1961. Doctor of Science. Associate Professor at the University Museum, The University of Tokyo. Edited and supervised by "Poplaria Botanical Garden" (general supervision, Poplar), "Flora of Japan, vol. IIb" (co-author, Kodansha Scientific), "Flora of Nepal, vol. 4" (ed., Royal Botanic Garden) Edinburgh), "Flora of China, vol. 9" (co-authored by Science Press, Beijing & Missouri Botanical Garden, St. Louis).