
This is a Japanese cultivar that was sent to Siebold in Leiden by Textor, a plant hunter. The name is in honour of the Dutch Queen Sophie of Würtenberg. The International Clematis Register and Checklist 2002 inexplicably says that the form is a seedling or selection from 'Sophia' but the reference given does not seem to support this.
| Group: | Early large-flowered group |
| Country of origin: | Japan |
| Date raised: | b1848 |
| Other name(s): | patens var sophia flore pleno; patens 'Sophia Flore Pleno'; patens 'Sophia Plena' |
| Further detail: | Tepals: narrowly elliptic, pointed |