Scrubland of the Chihuahuan Desert (IMAGE) Botanical Society of America Caption The Chihuahuan Desert runs along the foothills of the Guadalupe Mountains, creating a barrier to dispersal to many of the plants in the National Park that require large amounts of precipitation or a near-constant source of water, such as streams and rivers, to survive. Credit Photo courtesy of Matt Johnson. Usage Restrictions Request permission from the author. Please cite the article. License Original 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.