The largest of the UK wrasse species, the ballan wrasse with its striking patterning is a delight for any rocky reef snorkeller or shallow water diver!

Fel mae ei enw yn Saesneg, ‘Himalayan balsam’, yn awgrymu, mae ffromlys chwarennog yn dod o'r Himalayas ac fe'i cyflwynwyd yma yn 1839. Mae bellach yn chwyn ymledol ar lannau afonydd a…

This bumpy shell lives up to its name and lives partly buried in the seabed along the west coast of Great Britain.

An uncommon hedgerow and woodland tree of central and eastern England, Purging buckthorn displays yellow-green flowers in spring, and poisonous, black berries in autumn.

Look for Water avens in damp habitats, such as riversides, wet woodlands and wet meadows. It has nodding, purple-and-orange flowers that hang on delicate, purple stems.

Look for wood avens along hedgerows and in woodlands. Its yellow flowers appear in spring and provide nectar for insects; later, they turn to red, hooked seedheads that can easily stick to a…