garden star-of-Bethlehem
grass lily
nap-at-noon
eleven-o'clock lady
ornithogalum umbellatum latin

At least in North America, it is not as common as Ornithogalum umbellatum.

Vogelsang A. Ornithogalum umbellatum in the treatment of congestive heart failure: progress report.

Rhodexin A and rhodexoside in Ornithogalum umbellatum.

Ornithogalum umbellatum (I)

However, in areas where the alternate host, the weed, Star of Bethlehem (Ornithogalum umbellatum) occurs, teliospores are able to infect the plant.

Ornithogalum umbellatum, "Common Star-of-Bethlehem"

Estrella de Belén, Etoile de Bethlehem, Nap-at-noon, Ornithogalum umbellatum, Sleepydick, Snowdrop.

The second weed is probably not snow-on-the-mountain, which is Euphorbia marginata, a desirable border plant, but probably the North African plant Ornithogalum umbellatum, sometimes called summer snowflake.

Burne-Jones used a different pose of the angel holding the star, this time in a warm colour palette, to illustrate the wildflower called Star of Bethlehem (Ornithogalum umbellatum) in The Flower Book, a collection of watercolours on themes inspired by the names of flowers that he completed between 1882 and 1898.