United States of America, Arizona, Pima, Off Redington Pass Road north of Tucson.
32.277101 -110.633752 +-8631m. WGS84
Georeferenced to Redington Road northeast of Tucson between boundary of Saguaro National Park East to the east and Tucson to the southwest, with uncertainty radius encompassing entire road between those two points.
For additional information about this specimen, please contact: Jennifer Ackerfield, Head Curator of Biodiversity Collections (jennifer.ackerfield@botanicgardens.org)