| Family | Asteraceae (alt. Compositae) |
| Scientific name | Aster tataricus L. f. |
| Synonyms | Aster rhomboideus Lindley ex de Candolle; Aster tataricus L. f. var. hortensis Nakai; Aster tataricus L. f. var. nakaii (H. Léveillé et Vaniot) Kitamura; Linosyris tatarica (Lessing) C. A. Meyer |
| Common name | (Japanese common name) si-on [purple aster] |
| (English common name) Tartarian aster | |
| Distribution | (Japan) Honshu (Chugoku region), Kyushu |
| (Other nations) Russia (Far East), Korea, China, Mongolia | |
| Chromosomal number | 2n=54 |
| Description | Plants electing 100-200cm. Leaves 20-35cm length, 6-10cm width. Flowers purple capitulums 2.5-3.5cm, flowering in August to October. Perennial plants. |
| Reference | Aster tataricus L. f. |
| Aster tataricus L. f. | |
| Method for detecting proteins under mutual interaction (US Patent 7122382/2000) | |
| Triterpene compositions and methods for use thereof (US Patent 6444233/2002) | |
| Herbal remedies for treating allergies and asthma (US Patent 6630176/2003) | |
| Herbal compositions and uses for the treatment of allergic reactions (US Patent 6814985/2004) | |
| Compositions containing sucralose and application thereof (US Patent 7229658/2007) | |
| Composition for treatment of asthma (US Patent 7255884/2007) | |
| Note | Naturalized plants from Korea or China in ancient era. |
| October 2007 at Kosishikawa Botanical Garden |
October 2007 at Kosishikawa Botanical Garden |
| October 2007 at Kosishikawa Botanical Garden |
October 2007 at Kosishikawa Botanical Garden |
October 2007 at Nikko Botanical Garden |
| October 2007 at Kosishikawa Botanical Garden |
October 2007 at Kosishikawa Botanical Garden |