Mexico, Sonora, Santa Ana, Along Cajon Seco, 1.15 miles (1.85 km) (drainage) above Cajon del Agua in the Sierra Cucurpe, 1.1 miles (air) NE Rancho Cajon de Aqua. which is 14.6 mi. (23.5 km) (rd.) NE Hwy 15 at Estacion El Llano, 16.36 miles (26.3 km) (air) SE Santa Ana.
30.4212 -110.88158 +-100m. NAD 83
992 meters
3256 feet
Growing from cracks in boulder among cottonwood, sycamore and Bondpland willow along ephemeral drainage in low mountainous organ pipe cactus-tree ocotillo-dominated Sonoran upland desertscrub.
Bedrock crack.
Populus fremontii, Salix bonplandiana, Platanus wrightii, Phragmites australis.