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(First upload on March 14 2013. Last ton October 27 2021) [ 日本語 | English ]

Macleaya R. Br. (タケニグサ) Takenigusa (タケニグサ, 竹似草), plume poppy or five-seed plume-poppy Lifeform: large, weedy, perennial forb < 3 m high Distribution: China - Taiwan - Japan (except Hokkaido) Habitat: grasslands, open spaces, etc. (often on skislopes in central Honshu) Poisonous plant: sanguinarine, chelerythrine, bocconine, protopine, α-allocryptopine, etc. Chromosomal number: 2n = 10 or 20

f. glabra H. Ohba (ケナシチャンパギク) Synonyms: var. thunbergii auct. non (Miq.) Miq. f. thunbergii auct. non (Miq.) Hiyama f. koaraii Takeda et Honda (マルバタケニグサ)

Macleaya cordata in Japan

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[1/2] close to the doorway of Tennozu Isle Monorail Station, Tokyo, on May 12 2013. [3] near Hakone Climbing Cable Car Koen-shimo Station, Hakone, on August 21 2021. [4-6] at a roadside along Oi Pier Seaside Park, Tokyo, on June 3 2016.