Tamarisk or Saltcedar (IMAGE) University of California - Santa Barbara Caption Tamarisk or saltcedar, is an invasive tree from Eurasia that occupies over 1.5 million acres of riverside habitat in the Western US. Credit Tom Dudley, UCSB Usage Restrictions None 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.