Black vs winter truffles (IMAGE) University of Florida Caption Black truffles (left) and winter truffles look nearly identical but fetch very different prices. A new study shows that many truffle farmers are unintentionally harvesting winter truffles instead of the more valuable black truffles. Credit Bend Lemmond Usage Restrictions None License Original 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.