The Sitka spruce was introduced into the UK from North America in the 19th century. It has been widely planted as a forestry tree; look for classic needle-like leaves and pale brown, domed cones…

These non-native limpets arrived from America in the 19th century and are now widespread in the UK. They form stacks and have a specially adapted shell which, when flipped upside down, looks like…

Bell heather is our most familiar heather. In summer, it carpets our heaths, woods and coasts with purple-pink flowers that attract all kinds of nectar-loving insects.

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.

Mae’r pryf copyn tŷ cawraidd yn un o'n infertebrata cyflymaf ni, yn rhedeg hyd at hanner metr yr eiliad. Mae'r pryf copyn mawr, brown yma’n troelli gwe sy'n debyg i gynfasau ac yn…

Mudwr sy’n teithio'n dda ac mae'r fantell dramor yn cyrraedd yma bob haf o Ewrop ac Affrica. Mae'r glöyn byw oren a du hardd yma’n ymweld â gerddi yn rheolaidd.