| Family | Saxifragaceae |
| Scientific name | Astilbe simplicifolia Makino |
| Synonyms | none |
| Common name | (Japanese common name) hitotsuba-shouma (ヒトツバショウマ, 一葉升麻 [meaning: single leaf shoma (shoma = Cimicifugae Rhizoma)]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (Kanagawa Prefecture, Shizuoka Prefecture) |
| (Other nations) none | |
| Habitat | Mountane rock wall |
| Chromosomal number | unknown |
| Description | Leaves 3-11cm long, 2-7cm wide, petioles 2-10cm long. Scapes 10-30cm tall. Flowers white (or pale pink), petals ca. 2.5mm long, flowering in June to July. Prerennial plants. |
| Reference | Astilbe simplicifolia Makino |
| Note | Endemic to Japan. Rare species. |
| July 2008 at my home |
July 2008 at my home |
July 2008 at my home |
| July 2008 at my home |
July 2008 at my home |