The cliffs and scarps of Co Fermanagh are of Carboniferous limestone (eg Knockmore) and sandstone (Lough Navar area). Some of the more interesting cliff or scarp species in this county are:In Cos Londonderry and Antrim the basaltic scarp, the edge of the great basaltic plateau covering much of these counties, runs parallel to the coast and has a flora which is often maritime in character. Away from the coast the typical species associated with these scarps are:
In Co Down, inland cliffs are found in the Mourne range and are composed of granite or Silurian shale. The Mourne cliff flora is generally poor. The following are recorded:
The cliffs and scarps of Co Fermanagh are of Carboniferous limestone (eg Knockmore) and sandstone (Lough Navar area). Some of the more interesting cliff or scarp species in this county are:
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