Can anyone identify this please?

[spindrift]

Hi,

Does anyone know what this plant is please that has appeared in my garden. The underside of the leaves is very prickly and the top of the leaf has what looks like prickly warts but not on every leaf. Apologies for the vague description.

[Stewart Robert Hinsley]

In message , spindrift writes

Try googling for images of Picris echioides (bristly oxtounge) and see whether that's a match.