vervain
/ˈvəːveɪn
/noun [mass noun]
A widely distributed herbaceous plant with small blue, white, or purple flowers and a long history of use as a magical and medicinal herb.
- Verbena officinalis, family Verbenaceae.
- In Neberaska hoary vervain can flower from May to September, with blue or purple flowers positioned on the top of the main stem and branches.
- Purple vervain is one of the few colorful wildflowers.
Origin
Late Middle English: from Old French verveine, from Latin verbena (see verbena).
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