| Family | Ranunculaceae |
| Subamily | Ranunculoideae |
| Tribe | Anemoneae |
| Scientific name | Clematis meyeniana Walpers var. insularis Sprague |
| Synonyms | Clematis lutchuensis Koidzumi |
| Common name | (Japanese common name) yanbaru sen-nin-sou (ヤンバルセンニンソウ, 山原仙人草 [meaning: Yambal legendary wizard weed (Yambal = northern area of Okinawa Island)]) |
| (English common name) none | |
| Distribution | (Japan) Kyushu (south of Tanegashima Island), Okinawa |
| (Other nations) Taiwan, Philippines | |
| Habitat | Mountane forest or forest edge |
| Chromosomal number | 2n=16 |
| Description | Leaves palmately trifoliolate, leaflets each 4-9cm long, 2.5-5cm wide. Flowers 4 white calyxs ca. 2.5-3cm long, flowering in April to August. Vine. Subshrub or perennial plants. |
| Reference | Clematis meyeniana Walpers |
| Clematis meyeniana Walp. | |
| Use of anemonin for treating aseptic inflammations (US Patent 7297353/2007) | |
| Herbal compositions for prevention and treatment of rhyumatic and inflammatory diseases and method of preparing the same (WIPO Patent WO/2005/120158) | |
| Medicine containing anemonin as effective component for treating aseptic inflammation (European Patent EP1252893/2002) |
| July 2008 at Okinawa |
July 2008 at Okinawa |
July 2008 at Okinawa |
| July 2008 at Okinawa |