'Barley' in the Bible

"Here is a boy who has five barley loaves and two fish, but what are these for so many [people]?"

So they gathered [them], and filled twelve baskets with fragments from the five barley loaves which were left over by those who had eaten.

And I heard [something] like a voice in the midst of the four living creatures saying, "A quart of wheat for a denarius, and three quarts of barley for a denarius, and do not damage the olive oil and the wine!"