vervain
/ˈvɜːveɪn/noun
mass noun
1- a widely distributed herbaceous plant with small blue, white, or purple flowers and a long history of use as a magical and medicinal herb马鞭草。
1.1
- Verbena officinalis, family Verbenaceae.拉丁名Verbena officinalis,马鞭草科。
词源
late Middle English: from Old French verveine, from Latin verbena （see VERBENA）.