
| Group: | Atragene group |
| Approximate height: | 3.0 - 4.0 metres |
| Flowering period(s): | Apr May |
| Aspect: | Any aspect |
| Pruning: | No pruning (Group 1) |
| Raised by: | Gustaf Steffner |
| Country of origin: | Sweden |
| Date raised: | c1945 |
| Parentage: |
C. macropetala x C. sibirica |
| Other name(s): | alpina 'G Steffner'; macropetala 'G Steffner' |
| Further detail: | Flower diameter: 8-12cm Tepals: 4; 4-6cm long, 1.5-2cm wide |