Wild oats and Wild oat grass

Wild oats noun - Any of various plants of the genus Uvularia having yellowish drooping bell-shaped flowers.

Wild oat grass is a synonym for wild oats. In some cases you can use "Wild oat grass" instead a noun phrase "Wild oats".

Wild oat grass noun - Common in meadows and pastures.

Wild oats is a synonym for wild oat grass. Sometimes you can replace phrase "Wild oats" with "Wild oat grass", this phrases are similar.