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 Rhus trilobata & the single leafed kind [[inserted]]Rhus laurina[[/inserted]] & many others. Scattered live oak, Quercus agrifolia & dumosa, are the principal timber. Just below the falls [[insert]]at about 2000 feet[[/insert]]the chapperal ceases on hot slopes & is replaced by Hosackia globra, white sage & herbaceous plants. At the bottom of the canyon at 1000 feet Upper Sonoran chapparel comes down on cold slopes but the hot slopes are more open & barren with a few Lower Sonoran species of plants. Mimosa roemera is abundant along this part of the canyon on the hottest slopes, but there are no crops & not many Lower Sonoran plants. Along the river are abundance of Populus fremonti, Sycamore, Alnus [[followed by blank]], Salix nigra & Yellow willow & in places Baccharis borealis & a fine leaved species. Elderberry bushes are full of berries that are here getting ripe & hundreds of Phainopeplas are feeding on them.