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Upper Amazon Creek <br />• Salix sessilifolia <br />• Salix sitchensis <br />• Symphoricarpus albus <br />Associate species <br />• Cornus sericea <br />• Crataegus douglasii <br />• Rosa gymnocarpa <br />Soft - leaved willow <br />Sitka willow <br />Snowberry <br />Creek dogwood <br />Black hawthorn <br />Baldhip rose <br />b) Guidelines for Tree and Shrub Plantings <br />No further planting is needed in this reach, as it is currently densely vegetated with native trees <br />and shrubs. Maintenance of these plantings and management of non - native species should be <br />continued. <br />5. 29th Avenue to 24th Avenue <br />a) Existing Conditions <br />This creek segment flows through Amazon Park. In this park are three ash forests that do not <br />have direct connection to the creek. The channel has just sparse vegetation, and most of the <br />banks are mowed. <br />WILLOW RIPARIAN FOREST <br />Canopy <br />Dominant species <br />• Populus balsamifera ssp. tricho. Black cottonwood <br />• Salix lucida ssp. lasiandra Pacific willow <br />Associate species <br />• Alnus rhombifolia White alder <br />• Alnus rubra Red alder <br />• Fraxinus latifolia Oregon ash <br />Woody Understory <br />Dominant species <br />• Salix geyeriana <br />Geyer willow <br />• Salix hookeriana <br />Hooker's willow <br />• Salix scouleriana <br />Scouler's willow <br />• Salix sitchensis <br />Sitka willow <br />13 <br />