| Family | Liliaceae |
| Subfamily | Calochortoideae |
| Scientific name | Tricyrtis hirta (Thunberg) Hooker |
| Synonyms | Tricyrtis japonica Miquel; Tricyrtis hirta (Thunberg) Hooker forma albescens (Makino) Hiyama; Tricyrtis hirta (Thunberg) Hooker var. albescens Makino; Tricyrtis hirta (Thunberg) Hooker var. parviflora (Dam.) Masamune; Uvuralia hirta Thunberg |
| Common name | (Japanese common name) hototogisu (ホトトギス, 杜鵑 [hototogisu = Cuculus poliocephalus]) |
| (English common name) hairy toadlily, toadlily | |
| Distribution | (Japan) Honshu (west of Sizuoka prefecture), Shikoku, Kyushu |
| (Other nations) none | |
| Habitat | Mountane forest or wet rock wall |
| Chromosomal number | 2n=26 |
| Description | Plants 40-100cm tall. Leaves 10-20cm long, hairy. Flowers purple or white (forma albescens) perianths each 25-27mm long, flowering in September to October. Fruits 28-32mm, seeds 2mm long. Perennial plants. |
| Reference | Tricyrtis hirta (Thunb.) Hook. |
| Remedies (European Patent EP1563841/2005) |
| September 2007 at Institute for Nature Study |
| October 2006 at Ibaraki Botanical Garden |
October 2006 at Ibaraki Botanical Garden |
October 2006 at Ibaraki Botanical Garden |
| October 2006 at Ibaraki Botanical Garden |
October 2006 at Ibaraki Botanical Garden |