A flower bud of the Rock Nettle (IMAGE) University of Bonn Caption Blumenbachia insignis. Note the long, mineralized stinging trichomes, especially on the young fruit, but also on the perianth. Credit (c) Photo: M. Weigend/Uni Bonn Usage Restrictions This photo may be used with the press release. 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.