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(First upload on December 8 2007. Last on March 18 2024) [ 日本語 | English ]

Cynanchum L. (イケマ) Ikema (イケマ, 牛皮消), origninated from ainu Lifeform: perennial climbing forb Distribution: East Asia (China - Japan) Habitat: grasslands - forest egdge Poisonous plant Leaf: similar with Metaplexis japonica (ガガイモ) Hair: C. c. (less) < M. j. Chromosome number: 2n = 44

Synonyms: Cynanchum ikema Ohwi Cynanchum maximoviczii Poped. Cynanchum boudieri H. Lev. et Vaniot ssp. caudatum (Miq.) P. T. Li, M. G. Gilbert et W. D. Stevens var. tanzawamontanum Kigawa (タンザワイケマ)

Cynanchum caudatum in Hokkaido

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[1] This species was widespread in a grassland developed in Nakajima Island enclosed by Toya Lake, central Hokkaido, on July 21 2005, due to low deer palatablity (Tsuyuzaki & Takahashi 2007). [2/3] on Tomamu skislope on July 19 2012. [4-6] close to AMEDAS weather station in Horokanai Town, northern Hokkaido, on June 25 2018. [7] near a Yachidamo (Fraxinus mandshurica) Park, East Ward, Sapporo, on July 31 2021. [8] in the Forest of Hokkaido People, 3rd River, Kamui-jiri, Aoyama, Tobetsu Town, on July 18 2022. [9] on Rusutsu Kogen skislope (formerly Daiwa Rusutsu), central Hokkaido, on September 11 1984.