Vegetation Classification and Mapping Project Report - USGS

Appendix C: Global and local plant community descriptions
Distribution:
Globally. This association has been found in western Colorado and eastern Utah. It is likely
found in other places of the arid western U.S.
Petrified Forest National Park. Ericameria nauseosa Desert Wash Shrubland was identified
from eight relevés in Petrified Forest National Park. All of these relevés were associated with
washes and occurred on bajadas, playas, and talus landforms. They were mostly located in the
northern half of the project area, including east of Chinde Point in the northern wilderness
area, southwest of Pintado Point near the Lithodendron Wash, the northwestern corner of the
park near Digger Wash, and on the northern and eastern slopes of Chinde Mesa. The association
also occurred in the central neck area of the park north of the Puerco River and south of
Interstate 40 near the northern headquarters offce.
Environmental summary:
Globally. This association is found in or adjacent to temporary watercourses on point bars,
basin floors, and low stream terraces. Stands have been found between 1189 and 2104 m
(3900-6900 ft) elevation. Sites are flat to gently sloping (