Petasites japonicus
| Giant butterbur | |
|---|---|
| Adult fuki | |
| Fuki shoot | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Petasites |
| Species: | P. japonicus |
| Binomial name | |
| Petasites japonicus | |
| Nutritional value per 100 g (3.5 oz) | |||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Energy | 59 kJ (14 kcal) | ||||||||||||||||||||||||||||||||||||||||||
3.61 g | |||||||||||||||||||||||||||||||||||||||||||
0.04 g | |||||||||||||||||||||||||||||||||||||||||||
0.39 g | |||||||||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||||||||
| †Percentages estimated using US recommendations for adults, except for potassium, which is estimated based on expert recommendation from the National Academies. | |||||||||||||||||||||||||||||||||||||||||||
Petasites japonicus, also known as butterbur, giant butterbur, great butterbur and sweet-coltsfoot, is an herbaceous perennial plant in the family Asteraceae. It is native to China, Japan, Korea and Sakhalin and introduced in Europe and North America. It was introduced to southern British Columbia in Canada by Japanese migrants.
It is dioecious, with male and female flowers produced on separate individuals. Occasionally, morphologically hermaphroditic (but functionally sterile) flowers exist.