| Family | Asteraceae (alt. Compositae) |
| Scientific name | Erigeron thunbergii A. Gray subsp. glabratus (A. Gray) H. Hara var. angustifolius (Tatewaki) H. Hara |
| Synonyms | Erigeron thunbergii A. Gray subsp. glabratus (A. Gray) H. Hara var. angustifolius (Tatewaki) H. Hara forma furusei Sugimoto; Erigeron thunbergii A. Gray var. angustifolius (Tatewaki) H. Hara |
| Common name | (Japanese common name) apoi\ azuma-giku [Mt. Apoin eastern aster] |
| (English common name) none | |
| Distribution | (Japan) Hokkaido(Mt. Apoi) |
| (Other nations) none | |
| Chromosomal number | 2n=18 (2x) |
| Description | Plants 5-15cm. Leaves 3-4cm long, 2-4mm wide. Flowers pale purple or white (forma furusei) 2-2.5cm, flowering in July to August. Perennial plants. |
| Note | Rare species. |
| May 2008 at Hokkaido University Botanical Garden |
May 2008 at Hokkaido University Botanical Garden |
May 2008 at Hokkaido University Botanical Garden |