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Tree Lungwort

Lobaria pulmonaria

Tree Lungwort spanning entire branch of ancient tree

Tree Lungwort is a beautiful, vibrantly green, leafy lichen. It is one of the largest lichens and is an indicator of ancient woodland.

Where to spot it

Tree lungwort is found mainly in Scotland, particularly the west coast, where the wetter climate provides the moisture it requires to thrive. Because of air pollution, it is much sparser in the rest of Britain, confined to a few sites in wilder areas, such as the Lake District and parts of Wales.

It can be found growing on trees and old wood in areas of low air pollution.

Tree Lungwort growing on tree trunk, protected by artificial green mesh

Best time to spot it

Tree Lungwort can be spotted all throughout the year.

Things you might not know

  • Its lobes look a bit like the billowing shape of human lungs, which is where its name comes from.
  • In medieval times, medics would use Tree Lungwort to treat lung disorders because of its resemblance to human lungs.
  • Though Tree Lungwort can be found at multiple sites across the UK, in some of these sites its reproduction is limited.

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