The St Mark's fly is small, black and shiny. It is so-called because it emerges around St Mark's Day, April 25th. Large numbers of adults can be found in woodland edges, hedgerows,…

Look out for the feathery leaves of Spiked water-milfoil just below the surface of streams, ditches, lakes and ponds; its red flowers emerge from the water in summer. It provides shelter for a…

A pale member of the violet family sometimes known as ‘milk violet’, the fen violet has a delicate and unassuming appearance. A real specialist of the wetland habitat, this species has seen a…

This yellow-brown seaweed grows in dense masses on the mid shore of sheltered rocky shores. It is identifiable by the egg-shaped air bladders that give it its name.

Often a lone figure on a windswept mountainside or heath, the Rowan tree can stand for up to 200 years. It is well known for its masses of red berries that attract all kinds of birds, including…