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| Butterburs | ||||||||||||||
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Petasites frigidus | ||||||||||||||
| Ref: ITIS 36053 |
The plants commonly referred to as Butterbur are found in the daisy family Asteraceae in the genus Petasites. They are mostly quite robust plants with thick, creeping underground rhizomes and large Rhubarb-like leaves during the growing season.
The short spikes of flowers are interestingly produced just before these leaves in Spring, emerging with only a few elongated basal bracts and are usually green, flesh coloured or dull white depending on species.
Petasites is very closely related to the huge genus SenecioSenecio Scientific classification Kingdom: Plantae Division: Magnoliophyta Class: Magnoliopsida Order: Asterales Family: Asteraceae Genus Senecio Species See text Ref: The Genus Senecio of the daisy family (Family Asteraceae) includes ragworts and grounds.