During a walk at Ackworth School a couple of years ago, members of Wakefield Naturalists spotted an unfamiliar plant which turned out to be common fiddleneck. This plant is an annual that was introduced to the UK from North America. It’s quite common in East Anglia but is localised further west and north.
Common Fiddleneck (Amsinckia micrantha)
At first, I thought that it had been introduced along with some building material but I recently found numerous plants in the dry, bare ground beneath a large Lleylandii and I now wonder whether it has been growing at the school for much longer. Its preference is for dry and sandy soils.