Coed Cwm Einion is a woodland to the east of the village of Furnace, in Ceredigion, west Wales.
A Tilio-Acerion ravine forest, it contains ash (Fraxinus excelsior) and sessile oak, rowan, downy birch trees and the small-leaved lime (Tilia cordata).
[3] Species found in the woodland include Tunbridge filmy-fern (Hymenophyllum tunbrigense), hay-scented buckler-fern (Dryopteris aemula), Plagiochila atlantica and Parmotrema robustum,[1] a lichen which is critically endangered, and marsh hawk's-beard (Crepis paludosa).
Numerous shrubs found in the wood include, ivy, honeysuckle, hazel and bramble and are a food source for birds and mammals such as dormice.
[3] There is a 5.6 miles (9.0 km) hiking route through the area, which passes through Coed Cerrig-mawr and ascends Mynydd Coronwen before descending sharply.