butterwort
/ˈbʌtəwɜːt/noun
1- a carnivorous bog plant which has violet flowers borne above a rosette of greasy yellowish-green leaves that trap and digest small insects, found in both Eurasia and North America捕虫堇。
1.1
- Genus Pinguicula, family Lentibulariaceae: several species, in particular the common butterwort(P. vulgaris).捕虫堇属, 狸藻科：数种, 尤指常见的紫花捕虫堇（拉丁名 P. vulgaris）。
词源
late 16th cent.: named from the plant's supposed ability to keep cows in milk， and so maintain the supply of butter.