Photographs: Cork city
Clusters of yellow flowers, usually with 13 rays, black-tipped bracts.
Deep-green leaves, 1-2 times pinnate, narrow, pointed lobes. Spreading, bushy plant, can become woody at base. Nearly hairless. Height: 30-100cm.
Urban weed, dry waste ground, walls, roadsides, railways.
Common in Cork, Dublin, Belfast, local elsewhere in Ireland.
Similar: Ragwort, S. jacobaea