New, Rare Leafless Orchid (IMAGE) World Wildlife Fund Caption Gastrodia theana -- a very rare leafless orchid discovered in Vietnam. Credit © Leonid Averyanov / WWF Greater Mekong Usage Restrictions Photographs are available of several of the news species to accompany press stories based on this release and mentioning World Wildlife Fund. If used, appropriate credit must also be given to the photographer. 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.