Senecio sylvaticus is a species of flowering plant in the aster family. It is variously known as the woodland ragwort, heath groundsel, or mountain common groundsel. It is native to Eurasia, and it can be found in other places, including western and eastern sections of North America, as an introduced species and an occasional roadside weed.
It grows best in cool, wet areas. It is an annual herb producing a single erect stem up to 80 centimeters tall from a taproot. It is coated in short, curly hairs. The toothed, deeply lobed leaves are up to 12 centimeters long and borne on petioles.
They are evenly distributed along the stem. The inflorescence is a wide, spreading array of many flower heads, each lined with green- or black-tipped phyllaries. The heads contain yellow disc florets and most have very tiny yellow ray florets as well.
This plant might be poisonous
How to get rid of:
Hand-digging weeds works best with smaller shrubs, non-woody stemmed vines or bunching perennial grasses. It also can be effective with young starts of larger plants, such as small saplings or vines.
Utilize these techniques when soil is moist to enable easy root excavation. When digging plants, remove as much of the root system as possible to prevent resprouting.