Top
Header

(First upload on September 22 2008. Last on July 18 2021) [ 日本語 | English ]

Geum macrophyllum Willd.






Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

Geum L. (ダイコンソウ)
G. macrophyllum Willd.
var. macrophyllum, the type
var. 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

Flora on Mount Usu

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
Geum japonicum Thunb. var. sachalinense Koidz.
Geum macrophyllum Willd. ssp. fauriei (H.Lév.) Vorosch.

索引

Geum macrophyllum in Hokkaido


Mount Usu (有珠山)

Avens1 Avens2
[1/2] rossettes 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.

Hokkaido (北海道)

Avens3 Avens4 Avens5
Avens6
[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.

Honshu (本州)
2021/08/21 箱根金太郎岩遊歩道
フッター