Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Wirral Peninsula:

"

The name Wirral literally means "myrtle corner", from the Old English wir, a myrtle tree, and heal, an angle, corner or slope. It is supposed that the land was once overgrown with bog myrtle, a plant no longer found in the area, but plentiful around Formby, to which Wirral would once have had a similar habitat.[1] The name was given to the Hundred of Wirral (or Wilaveston) around the 8th century.[2]