Fir clubmoss is a primitive plant found in rocky, moorland and mountain habitats. The stems of this tufted, upright fern look like tiny conifers.

A tall plant, purple-loosestrife can form dense stands of bright purple flower spikes in wet habitats like reedbeds, fens and marshes.

A delicate, small plant of woodlands and hedgerows, wood-sorrel has distinctive, trefoil leaves and white flowers with purple veins; both fold up at night.

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.

Once widespread, this attractive plant has declined as a result of modern agricultural practices and is now only found in four sites in South East England.

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.

A scrambling plant, Tufted vetch has violet flowers. It is a member of the pea family and can be seen along woodland edges, on scrubland and grassland, and at the coast.

Selfheal is a low-growing, creeping plant that likes the short turf of grasslands, roadside verges or even lawns. Its clusters of violet flowers appear in summer.

Water-plantain is an aquatic plant of shallow water and muddy banks. In bloom over summer, it displays tall branches of loosely clustered, pale lilac flowers.

The common prawn is a familiar sight to anyone who has spent time exploring rockpools - particularly their characteristic quick dart into the darkness just as you spot them!

Arrowhead is an aquatic plant of shallow water and slow-moving waterways. In bloom over summer, it displays small, white flowers, but it is the arrow-shaped leaves that are most distinctive.