Purple-pink flowers with yellow anthers on white filaments. Named after a river in Iwakura City, Japan.

Group: Early large-flowered group
Flowering period(s): Apr May Jun Aug Sep Oct
Pruning: Light prune (Group 2)
Raised by: Hiroshi Takeuchi
Country of origin: Japan
Date raised: r2001 n2005
Parentage: Unknown
Other name(s): Mis-spelling 'Gojogawa'

Further detail:

Tepals: 8; elliptic, overlapping, pointed, wavy margin