Pinellia ternata (Chinese: 半夏, Japanese: カラスビシャク), crow-dipper, is a plant native to China, Japan, and Korea, but also grows as an invasive weed in parts of Europe (Austria, Germany) and North America (California, Ontario, northeastern United States). The leaves are trifoliate, while the flowers are of the spathe and spadix form typical of plants in Araceae.
This plant is toxic in raw form and must be processed. Pinellia ternata is known as the herb effective in removing dampness-phlegm, one of the causes of obesity in traditional Chinese medicine. One study found that high doses of Pinellia extract effects thermogenesis and fatty acid oxidation in Zucker rats.
- Kew World Checklist of Selected Plant Families
- Biota of North America Program, 2013 county distribution map
- Flora of China Vol. 23 Page 42, 半夏 ban xia, Pinellia ternata (Thunberg) Tenore ex Breitenbach, Bot. Zeitung. 37: 687. 1879.
- Kim, YJ; Shin, YO; Ha, YW; Lee, S; Oh, JK; Kim, YS (2006). "Anti-obesity effect of Pinellia ternata extract in Zucker rats". Biological & Pharmaceutical Bulletin. 29 (6): 1278–81. doi:10.1248/bpb.29.1278. PMID 16755034.
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