English name: Adder’s-tongue
Gaelic name: Teanga na Nathrach

Atlas of Ferns:
Post 1950 record: NG51.

Botanist in Skye: NG51.

New Atlas:
1987-1999: NG51, 61, 62, 72.

First recorded among limestone rocks in the Allt nan Leac valley by a Committee for the study of the Scottish Flora field meeting led by A. McG. Stirling in June 18th -25th - see Plant records in Proceedings of BSBI Vol. VII, Part 1 (1967).

It was first localised record on Skye was in 1966 by C. W. Murray (Watsonia, 8: 302, (1971)) in the Allt nan Leac valley (NG5918) in turf and limestone grike.

In Rodwell (ed.) (1992) it occurs as a minor component in the MG5a and MG5b communities, and states it is more common where there is a long history of freedom from improvement and disturbance. In Birks (1973) there are no records for this species.