different between bridewort vs meadowsweet

English

bride +? wort

bridewort (countable and uncountable, plural brideworts)

Any of several flowering plants
1. Filipendula ulmaria
2. Spiraea salicifolia
3. Spiraea alba, the pale bridewort

Corruption of mead sweet, from use in making mead.

meadowsweet (plural meadowsweets)

A Eurasian perennial flowering plant of Rosaceae family, Filipendula ulmaria.
Any plant of the genus Spiraea of the Rosaceae family, native to the temperate Northern Hemisphere and consisting of about 80-100 species of shrubs.

(Filipendula ulmaria): queen of the meadow, pride of the meadow, meadowwort, meadwort, meadow queen, lady of the meadow, dollof, meadsweet, bridewort