'Barley' in the Bible

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

So they gathered them up and filled twelve baskets with broken pieces from the five barley loaves left over by the people who had eaten.

Then I heard something like a voice from among the four living creatures saying, "A quart of wheat will cost a day's pay and three quarts of barley will cost a day's pay. But do not damage the olive oil and the wine!"