Kelp
Kelps are large brown algae seaweeds that make up the order Laminariales. There are about 30 different genera.
St Kilda, Scotland
Plant life is heavily influenced by the salt spray, strong winds and acidic peaty soils. No trees grow on the archipelago, although there are more than 130 different flowering plants, 162 species of fungi and 160 bryophytes. Several rarities exist amongst the 194 lichen species. Kelp thrives in the surrounding seas, which contain a diversity of unusual marine invertebrates.