This slim fish is usually found on gravelly parts of the seabed, close to shore, but can turn up in rockpools.

Look out for this large, leafy lichen on trees in ancient woodlands in the west of the UK.

The river lamprey is a primitive, jawless fish, with a round, sucker-mouth which it uses to attach to other fish to feed from them. Adults live in the sea and return to freshwater to spawn.

A small and delicate plant of chalk grasslands, Fairy flax can be seen in bloom from May to September - look out for its nodding, white flowers.

Mae pawb wrth eu bodd yn gweld cwningod yn sboncio drwy laswellt tal wrth fynd am dro yng nghefn gwlad. Mae’n olygfa gyffredin ond mae bob amser yn bleser gweld eu hwynebau chwilfrydig yn codi i’r…

The true fox-sedge is a rare and threatened plant in the UK. It relies on lowland floodplain meadows and damp habitats, which are rapidly disappearing. Look for reddish-brown flowers in summer.…

A short, but pretty plant of unimproved grasslands, the Green-winged orchid gets its name from the green veins in the 'hood' of its flowers. Look for it in May and June.

A late-blooming flower, Meadow saffron looks like a crocus, displaying similar pink flowers once its leaves have died back. It is a highly poisonous plant of meadows and woodland rides and…

Look for the unusual flowers of lords-and-ladies in spring woodlands: a pale green sheath surrounds a spike of tiny, yellow flowers. This spike eventually forms a familiar, short stalk of striking…

Look for the White water-lily in still and slow-moving water, such as ponds, ditches, lakes and canals. Its lily pads and massive, white flowers float at the water's surface.

Look for the Yellow water-lily in still and slow-moving water, such as ponds, ditches, lakes and canals. Its lily pads and cupped, yellow flowers float at the water's surface.

A sure sign that spring has arrived, the Cuckooflower blooms from April. Look out for its delicate, pale pink flowers in damp meadows and ditches, and on riverbanks.