This last version includes the Rose-Briar "Sympathetic Plants" floating motif, which occurs in versions of several ballads. Just to reiterate [I have mentioned it before] the great Harry Cox hated these lines being included in this ballad, insisting that they belonged in 'Lord Lovell' ('Lord Lovely', as he called it).
An interview with him by Bob Thomson and me in Catfield Norfolk shortly before his death in May 1971, transcript published in Folk Review for February 1973, contained the following assertions from him:--

~~~'Barbara Ellen' now, I remember it. Some people sing that different to what other people do. You might know a different tune. And there's some put another two verses at the end. I never could. 'And from her grave grew a rose'. The other one come in 'Lord Lovely' — 'Where they tied together in a true-love's knot, For true loves all to admire.' That's in another song. They get mixed up, that shouldn't come in 'Barbara Ellen'. That don't belong in that. They belong in 'Lord Lovely'. My uncle used to sing that.~~~

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