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(First upload on March 14 2013. Last ton August 22 2016) [ 日本語 | English ]

Macleaya cordata (Willdenow) R. Brown






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

索引
Macleaya R. Br. (タケニグサ)

One species in Japan (two or three species in the world
Takenigusa (タケニグサ, 竹似草), 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 = 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


ST1 ST2 ST3
[1-3] close to the doorway of Tennozu Isle Monorail Station, Tokyo, on May 12 2013
ST4 ST5 ST6
[4-6] at a roadside along Oi Pier Seaside Park, Tokyo, on June 3 2016.

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