Clematis 'Tonegawa'
Japanese large-flowered variety, tepals light marine blue. Anthers yellow. The cultivar is named for the biggest river in Japan.
| Group: | Early large-flowered group |
| Pruning: | Light prune (Group 2) |
| Raised by: | Hiroshi Takeuchi |
| Country of origin: | Japan |
| Further detail: | Flower diameter: 16-20cm |