As its name suggests, the Dwarf thistle is a low-growing plant that is almost stemless - its purple, thistle-like flower heads growing out of a rosette of spiny leaves.

The Carline thistle produces distinctive brown-and-golden flower heads that look like a seeded thistle. These flowers are attractive to a wide range of butterflies, including the very rare Large…

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…

On first glance, the meadow thistle looks a bit like a knapweed - it's not as prickly as other thistles and only carries one pinky-purple flower head. It can be found in damp meadows and…

As its name suggests, the Melancholy thistle was once used to treat 'melancholia' (depression). Today, it can be found in upland hay meadows showing off its single, purple, thistle-like…

Look for the round, cottony, purple flower heads of the Woolly thistle on chalk and limestone grasslands in summer. It is mainly found in Southern England.

Despite being considered a 'weed' of cultivated ground, the seeds of the Creeping thistle provide an important food source for farmland birds, many of which are declining rapidly.

A common plant of disturbed ground like roadside verges and field edges, the spear thistle has purple, fluffy flower heads that appear in summer. Its flowers attract insects and its seeds feed…

Dwarf milkwort is a rare plant of chalk and limestone grasslands with short turf; it can mainly be found in Kent, Yorkshire and Cumbria. It has bluish, sometimes pink, flowers atop its short stems…