Jacobaea vulgaris (Ragwort)
Botanical Information
| Family | Asteraceae |
| Genus | Jacobaea |
| Species | vulgaris |
| Synonyms | Senecio jacobaea |
| Category | Wildflowers & Weeds |
Details
| USDA Hardiness Ref. | |
| Canada Hardiness Ref. | |
| RHS Hardiness Ref. | |
| Height | 1-2 m. |
| Growth | Fast |
| Flowering Period | June, July, August, September, October, November |
Description and Growing Information
| Habitat | Native to Eurasia, considered a weed in the United Kingdom and most other parts of the world. |
| Leaf Description | The leaves are pinnately lobed and the end lobe is blunt. Foliage when crushed is slightly aromatic. |
| Flower Description | The hermaphrodite flower heads are 1.5-2.5 cm in diameter and are borne in dense, flat-topped clusters; the florets are bright yellow. |
Photographs
Scanning electron microscope image of pollen grain.