Wild marjoram
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.
Wild privet
Wild privet is a shrub of hedgerows, woodlands and scrub, but is also a popular garden-hedge plant. It has white flowers in summer and matt-black berries in winter that are very poisonous.
Wild service tree
An inconspicuous tree for much of the year, the Wild service tree comes to life in spring, when it displays pretty, white blossom, and autumn, when its Maple-like leaves turn bright crimson.
Wild strawberry
The Wild strawberry produces miniature, edible versions of the juicy red fruits we so enjoy. Gathering wild food can be fun, but it's best to do it with an expert - come along to a Wildlife Trust event to try it.
Wild thyme
The delightful fragrance of wild thyme can punctuate a summer walk over a chalk grassland. It forms low-growing mats with dense clusters of purple-pink flowers.
Willow emerald damselfly
A recent colonist to South East England, the metallic-green Willow emerald damselfly spends much of its time in the willow and alder trees that overhang ponds, lakes and canals.
Willow tit
The willow tit lives in wet woodland and willow carr in England, Wales and southern Scotland. It is very similar to the marsh tit, but has a distinctive pale panel on its wings.
Willow warbler
A summer visitor, the willow warbler can be seen in woodland, parks and gardens across the UK. It arrives here in April and leaves for southern Africa in September.
Winter moth
One of the few moths that fly in winter, often seen in car headlights.
Wolf spider
The wolf spider can be found in a wide range of habitats, including the garden. It hunts down its prey, leaping on it just like a wolf. Spiders are beneficial neighbours, helping to manage garden pests.
Wood Anemone
A spring delight, the wood anemone grows in dappled shade in ancient woodlands. Traditional management, such as coppicing, can help such flowers by opening up the woodland floor to sunlight.
Wood avens
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 passing animal.