México, Sonora, Municipio de Pitiquito, Sonora, México. Arroyo San Ignacio, ca 2 miles northwest of El Desemboque San Ignacio at ca 0.5 km inland from shore.
29.525 -112.3833333
Gravelly dry riverbed.
Jatropha cinerea, Euphorbia eriantha, Aristida adscensionis.