Mae'r siarc main yma’n cael ei enw o'r pigau o flaen ei asgell ddorsal. Gall ddefnyddio'r pigau yma i amddiffyn ei hun drwy gyrlio mewn bwa a tharo ysglyfaethwr.

A familiar shrub of hedgerows and woodland edges, blackthorn comes alive in spring when it bursts into a froth of white blossom. It is well known for its sloes, too - the blue-black fruits used in…

So-named because its gnarled trunk can split as it grows, the crack willow can be seen along riverbanks, around lakes and in wet woodlands. Like other willows, it produces catkins in spring.

White dead-nettle does not sting. It displays dense clusters of white flowers in whorls around its stem, and can be found on disturbed ground, such as roadside verges.

Perhaps the first sign that spring is just around the corner is the snowdrop poking its way through the frosted soil of a woodland, churchyard or garden. From January, look for its famous nodding…

One of our prettiest and smallest bumble bees, the early bumblebee has a bright orange tail and lemon-yellow bands on its body. It is very common and can be found in all kinds of habitats in early…

The distinctive rounded wings of the lapwing are displayed beautifully when it wheels around a winter sky in a massive flock. In spring, these flocks disperse and some birds breed in the UK.…

Red dead-nettle does not sting. It displays dense clusters of pinky-red flowers in whorls around its stem, and can be found on disturbed ground, such as roadside verges.

The hairy-footed flower bee can be seen in gardens and parks in spring and summer, visiting tubular flowers like red dead-nettle and comfrey. As its name suggests, it has long, orange hairs on its…