Sometimes called 'Marsh samphire', wild common glasswort is often gathered and eaten. It grows on saltmarshes and beaches, sometimes forming big, green, fleshy carpets.

The oak marble gall wasp produces brown, marble-shaped growths, or 'galls', on oak twigs. Inside the gall, the larvae of the wasp feed on the host tissues, but cause little damage.

Also known as 'Goldmoss' due to its dense, low-growing nature and yellow flowers, Biting stonecrop can be seen on well-drained ground like sand dunes, shingle, grasslands, walls and…

The dark green, straight and spiky stems of common club-rush or 'bulrush' are a familiar wetland sight. They are ideal for weaving and were traditionally used to make baskets, seats and…

An introduced species, the Rhododendron leafhopper is a striking mix of green and red, with a black stripe across its face. It can be found feeding on Rhododendrons (also introduced) in Southern…

Like many of our farmland birds, the corn bunting has declined in number in recent years. Spot this streaky brown, thick-billed bird singing from a wire or post - it sounds just like a set of…

The Alder fly is a blackish invertebrate, with delicately veined wings that it folds over its body like a tent. It can be found near ponds and slow-flowing rivers; the larvae living in the silt at…

The grass snake is our longest snake, but don't worry if you find one in the compost heap - it's harmless! Look out for this green and yellow beauty in grasslands and wetlands, too.

The distinctive spiky, or 'bearded', green flower heads of wall barley appear from June to July and are easy to spot in an urban environment as they push their way up through pavements…

Common box grows in woodlands and scrub in southern England, with notable populations in the Chilterns, Cotswolds and North Downs. A familiar evergreen tree, it has shiny, dark green, oval leaves…

Often seen carpeting the floor of ancient woodlands, Dog's mercury can quickly colonise, its fresh green leaves shading out rarer plants. It is also very poisonous.