canyon bottom along Rio San Ignacio, on sloping coarse volcanic tuff gravels accumulated at base of western wall of canyon. Berries ripen black, and locally said to edible.
roadside in steeply sloping volcanic rhyolite tuff rubble at mid canyon. Sites along the old gravel switchback road have now been largely destroyed by a new paved highway to Batopilas that also greatly restricts access to many former rich roadside collecting sites in the canyon.