I quoted William Robinson -Victorian horticulturalist and author of 'The Wild Garden'- in a recent entry concerning Summer Snowflakes. He said "they should be in any collection of British wildflowers" adding "and with them the Daffodil and the Wood-tulip (Tulipa sylvestris)."
I know it as the Wild Tulip, though here it is planted by me on the wildflower patch on the allotment. It certainly looks wilder than the Tulips that grow in many an urn and flower border. I'm not sure how it attained the ephithet sylvestris because it needs to grow in a sunny spot as far as I can tell.
These days T. sylvestris is thought to be an introduction from the continent that naturalised centuries ago in meadows in central and eastern England.