Kohlanese barley

From Memory Alpha, the free Star Trek reference.

Kohlanese barley is a type of food of the same origin as Kohlanese stew.

In 2371, Grand Nagus Zek, under the influence of the Bajoran Prophets, offered an unseen associate two thousand tons of Kohlanese barley. At what was then the market price, this would have cost 180 bars of gold-pressed latinum. (DS9: "Prophet Motive")

The Kohlanese have never been seen or directly referenced. They bear no relation to the Kohl of the Delta Quadrant.