butterbur

but·ter·bur  (btr-bûr)

n.

Any of several perennial herbs of the genus Petasites in the composite family, native to northern temperate regions and having large basal leaves and dense clusters of usually whitish or purplish flower heads.

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butterbur [ˈbʌtəˌbɜː]

n

(Life Sciences & Allied Applications / Plants) a plant of the Eurasian genus Petasites with fragrant whitish or purple flowers, woolly stems, and leaves formerly used to wrap butter: family Asteraceae (composites)

Thesaurus

Noun

1.

butterbur - small Eurasian herb having broad leaves and lilac-pink rayless flowers; found in moist areas bog rhubarb, Petasites hybridus, Petasites vulgaris genus Petasites, Petasites - genus of rhizomatous herbs of north temperate regions: butterbur; sweet coltsfoot herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests