Snowdonia hawkweed  (Hieracium snowdoniense)

Endemic to Wales, this hawkweed was first discovered in 1892; it is possible that this plant has always been rare (3), and it has only ever been recorded from seven mountain ledges in Snowdonia. It was previously last seen in 1967 in Cwm Idwal National Nature Reserve, but was rediscovered in July 2002 close to the last site following exhaustive searches by a team of botanists from the National Museums and Galleries of Wales and the Countryside Council for Wales (2).

The single known plant grows on a rocky, steep, and north-facing inaccessible mountain cliff. This hawkweed has historically been found growing at altitudes of between 300 and 900 m above sea level (3).