This uncommon small moss occurs particularly on shaded sandstone or slate in sheltered locations and unless fruiting is inconspicuous. It does fruit quite freely during the winter and the flexuose and arcuate seta is then quite characteristic. It is quite similar to some Seligeria species with an arcuate seta (esp S.recurvata) but the leaf lamina is visible all the way to the apex and is often bistratose. The capsule of Brachydontium trichodes is striate.
Confirmation usually requires microscopic examination.Read the Field Guide account