Coming to a river near you ?

Floating Pennywort

Floating pennywort is a highly invasive and environmentally damaging plant that spreads from fragments, grows extraordinarily quickly and can blanket a river from bank to bank. It is wreaking havoc on several southern and eastern English rivers, but it spreading north and west. It may not be a problematical plant for streamy trout water, but it will grow very vigorously wherever flow slows. This short video, from Clearwater Photography, summarises the problem and what is being done on the middle and lower Kennet, including some good footage to help identify this pernicious weed: