Butterbur

• (n.) A broad-leaved plant (Petasites vulgaris) of the Composite family, said to have been used in England for wrapping up pats of butter.
Found on http://thinkexist.com/dictionary/meaning/butterbur/

butterbur

bog rhubarb noun small Eurasian herb having broad leaves and lilac-pink rayless flowers; found in moist areas
Found on https://www.encyclo.co.uk/local/20974

Butterbur

But'ter·bur` noun (Botany) A broad-leaved plant ( Petasites vulgaris ) of the Composite family, said to have been used in England for wrapping up pats of butter.
Found on http://www.encyclo.co.uk/webster/B/118

Butterbur

Butterbur: A waterside plant with purple flowers and large soft leaves in which pats of butter were once wrapped during hot weather in England. The rhizome (root) of butterbur has been used as an herbal remedy for fever, asthma, colds, and urinary complaints and was also thought to be a cardiac 'tonic' and a diuretic. Butterbur holds some promise a...
Found on http://www.medterms.com/script/main/art.asp?articlekey=38459

butterbur

[n] - small Eurasian herb having broad leaves and lilac-pink rayless flowers
Found on http://www.webdictionary.co.uk/definition.php?query=butterbur
No exact match found