Cluster Roots in Embothrium coccineum (Proteaceae) (image) Botanical Society of America Share Print E-Mail Caption Left, small seedling (ca. five months old) collected in Reserva Nacional Cerro Castillo, Chile, with its noticeable cluster roots holding soil. Right, one young cluster root; notice that they are simple cluster roots (i.e., bottle-brush-like structures). Credit Left by Frida Piper; right by Mabel Delgado. Usage Restrictions Cite original publication and credit line. 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.