CNN's Sarah Jones and Nick Paton Walsh contributed to this report.

CNN: STORY HIGHLIGHTS

Sarah Jones, the environment and heritage officer for Cadwyn Clwyd - the regeneration agency which commissioned the survey - said side shoots on the trees are ideal cuttings.

BBC: Black poplar trees found in Denbighshire lay-by 'unique'

CNN's Sarah Jones contributed to this report.

CNN: French president to visit Mali this weekend

Three others - Kristina Ilieva, 23, Sarah Becca, 24, and Caradog Jones, 19 - were charged with obstructing police.

BBC: University of Sussex occupation: Four charged

She will move to Melbourne at the end of October to train alongside Jones and fellow Australian breaststroker Sarah Katsoulis.

BBC: Commonwealth Games: Three golds for English swimmers

Kristina Ilieva, 23, Sarah Beccer, 24, and Caradog Jones, 19, denied obstructing police and are due to appear in court on 17 June.

BBC: Banners outside building

Kallur, the European 60m indoor champion and European 100m gold medallist, earlier clinched the 60m hurdles from American Lolo Jones and Britain's Sarah McGreavy.

BBC: SPORT | Athletics | Pickering thunders to sprint win

The candidates for the Wadebridge East ward are: Brian Bennetts (Conservative), Collin Brewer (Independent), Roderick Harrison (UKIP), Adrian Jones (Labour), Steve Knightley (Liberal Democrat), Sarah Maguire (Independent).

BBC: Collin Brewer

On Twitter, tributes came from the likes of England footballers Jack Wilshere and Rio Ferdinand, Dragon's Den entrepreneurs Peter Jones, Duncan Bannatyne and Deborah Meaden, snooker star Jimmy White, former prime minister's wife Sarah Brown, television presenter Ben Shephard and teenage diving star Tom Daley, whose father died of a brain tumour earlier this year.

BBC: Harry Moseley: Tributes as cancer fundraiser, 11, dies