English name: Hart’s-tongue thyme-moss
A conspicuous acrocarpous moss with branched, greenish stems and tongue-shaped leaves with toothed margins.
In Scotland, Plagiomnium undulatum is widespread in woodlands, hedgerows, churchyards and quarries where it grows on logs and stumps, rocks and soil. BBS distribution map
Look out for Thuidium tamariscinum nearby.
Confusion species: Atrichum undulatum and Mnium hornum
scottishlichens.co.uk 