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(First upload on April 17 2018. Last on August 12 2018) [ 日本語 | English ]

Erigeron sumatrensis Retz.






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

Erigeron L. (ムカシヨモギ)
O-arechinogiku (オオアレチノギク, 大荒地野菊), Sumatran fleabane, tall fleabane, broad-leaved fleabane and white horseweed
Lifeform: weedy, (annual or) biennial forb, with 1-2 m tall when flowering and developing rosettes
Distribution: probably native to the South America

introduced to Japan in early Showa Era (now distributed in south to Honshu)

Habitat: waste lands, roadsides, etc.
Flower: no ligulateE. canadensis
Seed dispersal: wind
Synonyms:

Erigeron floribundus auct. non (Kunth) Sch. Bip.
Conyza sumatrensis (Retz.) E. Walker, used when established this genus
Conyza floribunda auct. non Kunth

索引

Erigeron sumatrensis in Japan


ST1 ST2 ST3
ST4 ST5
[1-3] close to Toshiba Building near JR Hamamatsu Station in Tokyo on June 15 2018. [4/5] in the Shimizudani Park, close to Sophia University, on November 24 2017.

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