Science Fair Project Encyclopedia
Butterbur
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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 Senecio.
Species (incomplete list)
- Sweet coltsfoot, Petasites speciosa
- Pestilence wort, Petasites hybridus
- Arctic sweet coltsfoot, Petasites frigidus
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details