Native oysters are a staple of our seas and our plates - but our love of their taste has lead to a sharp decline all around the UK.

Perennial rye-grass is a tufted, vigorous grass of roadside verges, rough pastures and waste ground. It is commonly used in agriculture and for reseeding grasslands.

The candlesnuff fungus is very common. It has an erect, stick-like or forked fruiting body with a black base and white, powdery tip. It grows on dead and rotting wood.

Annual meadow-grass is a coarse, vigorous grass that can be found on waste ground, bare grassland and in lawns. In some situations, it can be considered a weed.

A scrambling plant, Common vetch has pink flowers. It is a member of the pea family and can be seen on grassland, farmland and waste ground, as well as at the coast.

A scrambling plant, Meadow vetchling has yellow flowers. It is a member of the pea family and can be seen on rough grassland, waste ground and roadside verges.

Petty spurge is found on cultivated ground, such as gardens, fields and waste ground. It displays cup-shaped, green flowers in clusters and oval, green leaves.

The scarlet pimpernel is now in decline due to intensive agricultural practices. It can be found in arable fields, on roadside verges and waste ground, and on coastal cliffs.