'Tis the orchid season. One of the first out of the blocks is the Early Purple Orchid, Orchis mascula. It is commonly found in woodland, but also grows in meadows. You can see the distinctive spots on the leaves, but these aren't always present. The Common Spotted Orchid has spotty leaves too, but the spots tend to be elongated.
The family Orchidaceae is one of the largest (with Asteraceae) with around 25000 species, so something for everyone. Having said that only 55 or so are found in the UK so you might have to travel.