Ode to a Raven has a different ring

Wenlock Edge Thoughts of Keats follow from a promiscuous rose - but it's a different, madder bird that attends it, not the poet's nightingale

The wild rose flowers over a chain-link fence at the edge of the quarry. In a Sleeping Beauty moment, this tangle of thorns has been transformed into the sweetest rose: sweet briar.

Because of their promiscuity, wild roses can be hard to identify accurately, but this one, with its apple-scented leaves and classic open, yellow-centred, pink-edged flower has more sweet briar than dog-rose about it. It is the rose Keats knew as the "pastoral eglantine" in the swoony psychedelia of his Ode to a Nightingale.