The tightly packed, thistle-like purple flower heads of common knapweed bloom on all kinds of grasslands. Also regularly called black knapweed, this plant attracts clouds of butterflies.

Soft brome is a tall, annual grass of roadside verges, waste ground and meadows, and is a 'weed' of arable land. It has long, grey-green leaves and loosely clustered flower spikes.

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…

Also known as 'Scorpion-grass' because of the curved 'tail' at the end of its stems, Water forget-me-not is a distinctive plant of damp habitats. Over summer, it produces…

A common thistle of roadside verges, rough grassland and waste ground, the Musk thistle has large, purple, nodding flower heads that appear in summer. It is attractive to a wide range of insects…

As its name suggests, pendulous sedge has drooping form with long, nodding flower spikes that give it an attractive and soft look. It can be found in wet woodlands and along riversides.

Wild marjoram is actually the same aromatic herb as oregano which is used in Mediterranean cooking. Its small, pink flower clusters can be seen on chalk and limestone grasslands in summer.

The Speckled bush-cricket, as its name suggests, is covered in tiny, black speckles. It can be found in scrub, hedgerows and gardens throughout summer. Males rub their wings together to create a…

Looking like a short Dandelion, but with a much rounder middle, Colt's-foot is a 'weed' of waste ground and field edges that brightens up early spring with its sunshine-yellow…

Water-soldier grows submerged in ponds and open water, and pops up over summer, looking like the top of a pineapple! This rare plant displays white flowers and shelters many aquatic insects.