(First upload on September 22 2008. Last on July 18 2021) [ 日本語 | English ]
Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily
HOME > Plant list (植物リスト) > Rosaceae (バラ科) > Geum macrophyllum
Geum L. (ダイコンソウ)G. macrophyllum Willd.var. macrophyllum, the typevar. sachalinense (Koidz.) H. Hara Karafutodaikonsou (カラフトダイコンソウ, 樺太大根草), largeleaf avens Lifeform: Large, deciduous perennial forb Distribution: Sakhalin - Japan (central Honshu - Hokkaido) - Kuril Habitat: mainly grasslands |
Seedbank (埋土種子): well-developed (survived for more than 30 years in the former topsoil under thick volcanic deposits on Mount Usu (Tsuyuzaki 2010) Synonyms:
Geum aleppicum Jacq. var. sachalinense (Koidz.) Ohwi |
|
1
2
[1/2] rosettes in the crater basin on September 19, 2008. The seeds were extracted from the former topsoil under thick volcanic deposits, by a centrifuged flotation method, 20 years after the eruptions.
3
4
5
6
[3] at Goshiki Spa, Niseko, on June 26 2006. [4/5] at a field trip near Usujiri Fisheries Station of Hokkaido University, southern Hokkaido, on June 17 2015. [6] along Fureai Course in Nopporo Forest Park on July 17 2021.