Senecio eboracensis, the York groundsel or York radiate groundsel, is a self-pollinating hybrid species of ragwortand one of only six new plants to be discovered in either the United Kingdom or North America in the last 100 years. It was discovered in 1979 in York, England growing next to a parking lot and formally described in 2003. Like many of the Senecio genus it can be found growing in urban habitats, such as disturbed earth and pavement cracks and this particular species only in York and between a railway and a parking lot.