Many accounts are incomplete although new information is being added continuously.
Errors do occur. Users are cautioned to refer back to the original cited source to assess completeness and correctness before using the information. Web updates are intermittent, not continuous, therefore some dynamic information such as legal status may not be absolutely current. P.decurtatus is found in dry environments from Inyo County, California, southern Nevada, and southcentral Arizona in the north near the tip of Baja California and Mazatlan, Sinaloa in the south. Most of its range in the U.S. corresponds closely with the distribution of the creosote bush.