(First upload on October 4 2008. Last on March 15 2022) [ 日本語 | English ]

Aster ageratoides Turczaninow

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

Aster L. (シオン)
A. ageratoides Turcz. (シベリアノコンギク), Japanese aster
Morphology: super-polymorphic
var. ageratoides (シロヨメナ, 白嫁菜)

Aster leiophyllus Franch. et Sav. var. robustus (Koidz.) H. Hara
Aster leiophyllus Franch. et Sav. var. leiophyllus
Aster ageratoides Turcz. var. harae (Makino) Kitam. f. leucanthus Honda
Aster ageratoides Turcz. var. leiophyllus (Franch. et Sav.) Y. Ling
Aster ageratoides Turcz. var. robustus (Koidz.) Makino et Nemoto
Aster ageratoides Turcz. var. harae (Makino) Kitam. f. stenophyllus (Kitam.) Ohwi

Aster trinervius auct. non Roxb. ex D. Don
Aster ageratoides Turcz. ssp. megalocephalus Kitam.
Aster leiophyllus Franch. et Sav. var. stenophyllus (Kitam.) H. Hara
Aster ageratoides Turcz. ssp. leiophyllus (Franch. et Sav.) Kitam.

f. ovalifolius (Kitam.) Ohwi (タマバシロヨメナ)
f. purpurascens Kitam. (サガミギク)
var. ovatus (Franch. et Savat.) Nakai (ノコンギク, 野紺菊)
Distribution: Honshu, Shikoku, Kyushu in Japan (not in Hokkaido)
f. albidus Kitam.
f. albovariegatus Kitam. (フイリノコンギク)
f. hortensis (Makino) Ohwi (コンギク)
f. humilis (Nakai) Ohwi (コマチギク)
f. littoricola Kitam. (ハマコンギク)
f. vernalis (Honda) Ohwi (ハルノコンギク)
f. yezoensis (Kitam. et H. Hara) Ohwi (エゾノコンギク, 蝦夷野紺菊)
Lifeform: perennial forb
Distribution: Hokkaido Island in Japan
Habitat: sun - weak shade

Flora on Mount Usu


Aster microcephalus (Miq.) Franch. et Sav. var. yezoensis (Kitam. et H. Hara) Soejima et Mot.Ito
Aster ovatus (Franch. et Sav.) Mot.Ito et Soejima var. yezoensis (Kitam. et H. Hara) Mot.Ito et Soejima
Aster ageratoides Turcz. ssp. ovatus (Franch. et Savat.) Kitam. var. yezoensis Kitam. et H. Hara

Nomenclature: Ohwi & Kitagawa (1983)

Aster ageratoides in Japan

var. ageratoides (シロヨメナ)

Sado Island

Aster1 Aster2 Aster3
Aster4 Aster5 Aster6 [1] in Sado Experimental Forest, Niigata Uniersity (新潟大学), on September 10 1990. [2/3] on a trail between the summit and Yakuo-in Shrine on Mount Takao (590 m elevation), Tokyo, on October 21 2013. [4-6] near Kintaro Rock between Togendai and Ubako, Hakone, central Honshu, on August 21 2021.

var. ovatus f. yezoensis (エゾノコンギク)

Mount Usu

Aster1 Aster2 Aster3
[1-3] In the crater basin on September 19 2008.

Teine Skislope

Aster1 Aster2 Aster3
[1-3] At the middle slope of Senjaku Course on August 17 2011. This slope was abondoned in 1999.


[1] in the forecourt of Usujiri Fisheries Station of Hokkaido University, southern Hokkaido, on September 9 2020.