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(First upload on December 7 2016. Last on February 8 2024) [ 日本語 | English ]

Ageratina Spach (マルバフジバカマ) Marubafujibakama (マルバフジバカマ, 丸葉藤袴), white snakeroot, or tall boneset Lifeform: long rhizomatous, perennial forb Distribution: native to the North America Japan: recorded in 1896 → escaped → often established in forests Hokkaido Blue List: B Hakone: escaped and widespread Flower: white tubulars, and no ligulates

Synonyms: Eupatorium rugosum Houtt., when Ageratina is not established var. altissima, the type var. roanensis (Small) Clewell et Wooten (Appalachian white snakeroot) Cultivar: Eupatorium rugosum cv. chocolate

Ageratina altissima in Japan

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Hokkaido

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[1/2] on a forest in Hokkaido University Botanic Garden on September 30 2023. [3] in the backyard of Japanese archery training hall, Hokkaido University, on July 30 2016. [4] on a small flower garden in front of a building in N21/W4, North Ward, Sapporo, on October 3 2020. [5/6] in Tsukiura Forest Park faced to Toya Lake on September 4 2018.

Hakone

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[1-3] near Hakone Climbing Cable Car Koen-shimo Station, Hakone, on August 20 2021.