Japanese large-flowered variety, tepals white. Anthers yellow. The cultivar name means white summit of mountain. Not to be confused with 'Hakuchoo'.

Group: Late large-flowered group
Pruning: Hard prune (Group 3)
Raised by: Hiroshi Hayakawa
Country of origin: Japan
Date raised: 1993
Other name(s): None known

Further detail:

Flower diameter: 10-13cm