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| July 2008 at Hokkaido University Botanical Garden |
July 2008 at Hokkaido University Botanical Garden |
July 2008 at Hokkaido University Botanical Garden |
| Family | Asteraceae (alt. Compositae) |
| Scientific name | Achillea macrocephala Ruprecht |
| Synonyms | Achillea ptarmica L. subsp. macrocephala (Ruprecht) Heimerl; Achillea ptarmica L. var. macrocephala (Ruprecht) Masamune; Achillea ptarmica L. var. speciosa (de Candolle) Herder; Ptarmica speciosa de Candolle |
| Common name | (Japanese common name) ezo-nokogiri-sou (エゾノコギリソウ, 蝦夷鋸草 [meaning: Ezo saw weed (Ezo = an old name of Hokkaido)]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu (Tohoku region, Niigata Prefecture) |
| (Other nations) Russia (Far East), Korea | |
| Habitat | Mountane fields (subalpine) |
| Chromosomal number | 2n=18 (2x) |
| Description | Plants electing 10-85cm tall. Leaves 3-7cm long, 5-11mm wide. Flowers involucres 5mm long, 9-11mm wide, white ligulate flowers, flowering in July to October. Perennial plants. |
| Reference | Achillea macrocephala Rupr. |
| Achillea ptarmica Linnaeus | |
| Farnesyl-protein transferase inhibitors (US Patent 6429203/2002) | |
| Note | Korean authors have described that Achillea acuminata (Ledebour) Schultz Bipontinus (syn. Achillea ptarmica L. var. acuminata (Ledebour) Heimerl) is a synonym of Achillea macrocephala Ruprecht. |
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| July 2008 at Hokkaido University Botanical Garden |
July 2008 at Hokkaido University Botanical Garden |
July 2008 at Hokkaido University Botanical Garden |
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| July 2008 at Hokkaido University Botanical Garden |
July 2008 at Hokkaido University Botanical Garden |
