True Leaf Farms of Salinas initially announced a recall of 90 cartons of romaine lettuce shipped to an Oregon food service distributor, which shipped the produce to Washington and Idaho.

But the chief executive of Church Brothers, which sells and markets the farm’s produce, clarified Saturday that the recall involved nearly 2,500 cartons. Only 90 cartons went to retail sales, said CEO Steve Church, and those were the ones mentioned in the initial announcement.

The rest of the cartons, Church said, went to institutions such as restaurants and cafeterias, which were notified about the recall.

The company recalled the 33,000 pounds of lettuce after a check by federal officials found that a sample from one bag tested positive for listeria. No illnesses have been reported.