Wild Moso Bamboo Phyllostachys pubescens (image) Hokkaido University Share Print E-Mail Caption Fibers (vascular bundles) surrounding the heart-shaped black openings have a denser distribution toward the outer part. Credit Sato M., et al., PLOS ONE, May 3, 2017 Usage Restrictions This image is copyrighted and can be used for reporting this press release if properly credited. Share Print E-Mail 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.