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The "Miyama-akino-nogeshi" (Lactuca triangulata) belongs to Asteraceae (the Aster family). It is an annual or biennial that is native to Hokkaido, Kanto district and Chubu district of Honshu in Japan, as well as the Korean Peninsula, northern and northeastern China and eastern Siberia. This herb grows in montane forests and it can reach 60-120 cm in height. The leaves are deltoid and the lower leaves have winged petioles and enfold stems widely. The narrow panicles are borne atop of stem and bloom dark yellow flower-heads from August to September. The fruits are achenes with whitish pappus. In Chinese, it is called "翼柄翅果菊" (yi bing chi guo ju).
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