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| October 2006 at Mt. Tsukuba |
October 2006 at Mt. Tsukuba |
October 2006 at Mt. Tsukuba |
| Family | Asteraceae (alt. Compositae) |
| Scientific name | Paraixeris denticulata (Houttuyn) Nakai |
| Synonyms | Brachyramphus ramosissimus Bentham; Crepidiastrum denticulatum (Houttuyn) J. H. Pak et Kawano; Ixeris denticulata (Houttuyn) Stebbins; Ixeris denticulata (Houttuyn) Stebbins subsp. longiflora Stebbins; Ixeris denticulata (Houttuyn) Stebbins subsp. ramosissima (Bentham) Stebbins; Lactuca denticulata (Houttuyn) Maximovicz; Prenanthes denticulata Houttuyn; Prenanthes hastata Thunberg; Youngia chrysantha Maximovicz; Youngia denticulata (Houttuyn) Kitamura; Youngia hastata (Thunberg) de Candolle |
| Common name | (Japanese common name) yakushi sou [Healing Buddha weed] |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu, Okinawa |
| (Other nations) Korea, China, Indochina | |
| Chromosomal number | 2n=10 |
| Description | Plants 30-120cm. Flowers yellow involucres 1.5mm, flowering in August to November. Winter annual plants. |
| Reference | Paraixeris denticulata (Houtt.) Nakai |
| Youngia denticulata (Houtt.) Kitam. |
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| October 2006 at Mt. Tsukuba |
October 2006 at Mt. Tsukuba |
October 2006 at Mt. Tsukuba |
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| October 2006 at edge of forest |
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| October 2006 at Mt. Tsukuba |
October 2006 at Mt. Tsukuba |
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| December 2007 at Tsukuba Botanical Garden |
