| Family | Asteraceae (alt. Compositae) |
| Scientific name | Tephroseris pierotii (Miquel) Holub |
| Synonyms | Senecio pierotii Miquel; Senecio subdentatus Ledebour var. pierotii (Miquel) Cufodontis |
| Common name | (Japanese common name) sawa-o-guruma [swamp small wheel] |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu, Okinawa |
| (Other nations) Korea, China | |
| Chromosomal number | unknown |
| Description | Plants electing 50-80cm. Flowers involucres yellow florets 11-16mm, flowering in April to June. Perennial plants. |
| May 2006 at Yukiguni Botanical Garden |
May 2006 at Yukiguni Botanical Garden |
May 2006 at Yukiguni Botanical Garden |
| May 2006 at Yukiguni Botanical Garden |
May 2006 at Yukiguni Botanical Garden |
| May 2006 at Yukiguni Botanical Garden |
May 2006 at Yukiguni Botanical Garden |
May 2006 at Yukiguni Botanical Garden |