| Family | Tofieldiaceae (also placed in Liliaceae) |
| Scientific name | Tofieldia nuda Maximovicz |
| Synonyms | Tofieldia yoshiiana Makino |
| Common name | (Japanese common name) hana-zekishou [flowering sekishou (sekishou = Acorus gramineus)] |
| (English common name) none | |
| Distribution | (Japan) Honshu (west of Kinki region), Shikoku, Kyushu |
| (Other nations) none | |
| Habitat | Wet rocks in mountain |
| Chromosomal number | 2n=30 |
| Description | Leaves 5-12cm long. Scapes 12-30cm tall. Flowers while, 6 tapals each ca. 2.5-4mm long, inflorescences 3-6cm long, flowering in July to August. Perennial plants. |
| Reference | Tofieldia nuda Maxim. |
| Tofieldia yoshiiana Makino |
| June 2008 at Kochi Prefecture Makino Botanical Garden |
June 2008 at Kochi Prefecture Makino Botanical Garden |