| Family | Liliaceae |
| Subfamily | Calochortoideae |
| Scientific name | Tricyrtis macrantha Maximovicz subsp. macranthopsis (Masamune) Kitamura |
| Synonyms | Tricyrtis macranthopsis Masamune |
| Common name | (Japanese common name) kii jourou hototogisu (キイジョウロウホトトギス, 紀伊上臈杜鵑 [kii female officials hototogisu (kii = an old name of Wakayama prefecture, hototogisu = Cuculus poliocephalus)]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (Kii peninsula) |
| (Other nations) none | |
| Habitat | Mountain rock wall |
| Chromosomal number | 2n=26 |
| Description | Plants 40-80cm long. Leaves 12-18cm long. Flowers yellow perianths each 4-4.5cm long, flowering in September to October. Fruits 22-25mm, seeds 1mm long. Perennial plants. |
| Reference | Tricyrtis macranthopsis Masam. |
| Note | Native to Japan, rare species |
| October 2007 at Koishikawa Botanical Garden |
October 2007 at Koishikawa Botanical Garden |
October 2007 at Koishikawa Botanical Garden |
| October 2007 at Koishikawa Botanical Garden |
October 2007 at Tsukuba Botanical Garden |