Gagea serotina (L.) Ker-Gawl.
Lloydia alpina Salisb.

Lloydia serotina is an arctic-alpine flowering plant of the lily family. It is the only member of the genus Lloydia to live outside central and eastern Asia, and is widespread across western North America, from Alaska to New Mexico, and in Europe is found in the Alps and Carpathians, as well as in Great Britain.

It was originally known as mountain spiderwort, but is now known in Great Britain as the Snowdon lily, or in Welsh as brwynddail y mynydd (meaning "rush-leaves of the mountain") ^[1]. In North America, it is called the common alplily.