Callery Pear (IMAGE) University of Cincinnati Caption University of Cincinnati biology professor Theresa Culley is finding more Callery pear trees growing wild in Ohio forests. Some states like Ohio are phasing out the sale of the trees. Credit Joseph Fuqua II/UC Creative Services Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.