oenanthe crocata การใช้

• In 2009 scientists at the University of Eastern Piedmont in Italy claimed to have identified hemlock water dropwort ( " Oenanthe crocata " ) as the plant responsible for producing the sardonic grin.
• In 2009 scientists at the University of Eastern Piedmont in Italy wrote that they had identified hemlock water dropwort ( " Oenanthe crocata " ) as the plant historically responsible for producing the sardonic grin.
• They include Royal Fern, " Osmunda regalis ", and Narrow Buckler Fern, " Dryopteris carthusiana ", Hemlock Water Dropwort, " Oenanthe crocata ", and Smooth-stalked Sedge, " Carex laevigata ", all of which are rare or have a localised distribution in North-east England.