| Family | Ranunculaceae |
| Subfamily | Ranunculoideae |
| Tribe | Anemoneae |
| Scientific name | Clematis tosaensis Makino |
| Synonyms | Clematis tosaensis Makino forma cremea (Makino) Tamura; Clematis japonica Thunberg var. brevipedicellata Makino; Clematis japonica Thunberg var. cremea Makino; Clematis japonica Thunberg var. tosaensis (Makino) Ohwi |
| Common name | (Japanese common name) torigata-hanshou-dzuru (トリガタハンショウヅル, 鳥形半鐘蔓 [meaning: Mt. Torigata alrm bells vine]), (シロハンショウヅル, 白半鐘蔓 [meaning: white alrm bells vine]), (アズマハンショウヅル, 東半鐘蔓 [meaning: Aszuma alrm bells vine (Adzuma = an old name of northeastern Japan)]) |
| (English common name) none | |
| Distribution | (Japan) Honshu, Shikoku |
| (Other nations) none | |
| Habitat | Mountane forest |
| Chromosomal number | unknown |
| Description | Leaves ternate. Flowers pedicels 1.5-3.5cm long, calyxs green, pale green or white, styles 2cm long, flowering in April to May. Fruits 6mm long. Vine. Shrub. |
| Reference | Clematis tosaensis Makino |
| June 2008 at Nikko Botanical Garden |
June 2008 at Nikko Botanical Garden |
June 2008 at Nikko Botanical Garden |
| June 2008 at Nikko Botanical Garden |