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Upper Amazon Creek <br />2. Snell Avenue to Fox Hollow Road <br />a) Existing Conditions <br />Along this section, there are a lot of different species, but they are less common than on the <br />upper segment, with many stretches unvegetated with natives. The top of the bank is covered <br />with mowed grass, not by trees or shrubs. Th trees and shrubs are on the slopes. <br />ASH — COTTONWOOD — WILLOW RIPARIAN FOREST <br />Canopy <br />Dominant species <br />• Fraxinus latifolia Oregon ash <br />• Populus balsamifera Black cottonwood <br />• Salix lucida ssp. lasiandra Pacific willow <br />Associate species <br />• Alnus rhombifolia <br />White alder <br />• Alnus rubus <br />Red alder <br />• Arbutus menzisii <br />Madrone <br />• Pinus ponderosa <br />Ponderosa pine <br />• Prunus emarginata var. mollis <br />Bittercherry <br />• Quercus garryana <br />Oregon white oak <br />Woody <br />Understorx <br />• Berberis aquifolium <br />Dominant species <br />• Corylus cornuta var. california <br />• <br />Cornus sericea <br />Creek dogwood <br />• <br />Crataegus douglash <br />Black hawthorn <br />• <br />Salix fluviatilis <br />Columbia river willow <br />• <br />Salix hookeriana <br />Hooker's willow <br />• <br />Salix scouleriana <br />Scouler's willow <br />• <br />Salix sessilifolia <br />Soft- leaved willow <br />• <br />Salix sitchensis <br />Sitka willow <br />• <br />Symphoricarpus albus <br />Snowberry <br />Associate species <br />• Berberis aquifolium <br />Tall Oregon grape <br />• Corylus cornuta var. california <br />California hazel <br />• Oemelaria cerasiformis <br />Indian plum <br />• Physocarpus capitatus <br />Ninebark <br />• Rosa gymnocarpa <br />Baldhip rose <br />• Rosa nootkana <br />Nootka rose <br />• Toxicodendron diversiloba <br />Poison oak <br />Z <br />