A tall orchid of woodland and scrub, the broad-leaved helleborine has greenish, purple-tinged flowers that look a little 'drooping'. Strongly veined, oval leaves spiral around its stem…

Ground-elder was likely introduced into the UK by the Romans and has since become naturalised. A medium-sized umbellifer, it is an invasive weed of shady places, gardens and roadsides.

The black-headed gull is actually a chocolate-brown headed gull! And for much of the year, it's head even turns white. Look out for it in large, noisy flocks on a variety of habitats.

Look out for the small, yellow flowers of Celery-leaved buttercup in wet meadows and at the edges of ponds and ditches. It flowers from May to September.

A scarce tree of England and Wales, the large-leaved lime is the rarest of our native limes. It is tall and broad, and can be found in forests and parks, where it is frequently planted.

The white-letter hairstreak gets its name from the white lines that form a 'W' shape on its underside. It is an elusive butterfly, spending much of its time in the treetops.

Cross-leaved heath is a type of heather that likes bogs, heathland and moorland. It has distinctive pink, bell-shaped flowers that attract all kinds of nectar-loving insects.

Broad-leaved dock is well-known to most of us as the remedy for Stinging nettle irritations. Often considered a 'weed', it can be found next to water or on disturbed ground almost…

A scarce tree of central and southern England, in particular, the small-leaved lime can be found in ancient woodland. It is has sweet-smelling flowers in summer and nut-like fruits in autumn.

Ivy-leaved toadflax is an introduced species in the UK that has become widely naturalised. Look for creeping along old walls and pavements, and shingle beaches. Its flowers resemble those of…