Tags: Site Of Special Scientific Interest.
Wingletang Down is a Site of Special Scientific Interest (SSSI) on the southern side of the island of St Agnes in the Isles of Scilly England UK which is noted for its biological characteristics. The site is managed by the Isles of Scilly Wildlife Trust and is within the Isles of Scilly Heritage Coast and the Isles of Scilly Area of Outstanding Natural Beauty. It is the only site in Great Britain and Ireland for the small fern least adder’s–tongue (Ophioglossum lusitanicum).