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2) Plants For Channels and Drainageways <br /> These are woody or herbaceous plant species of wetlands or riparian habitats <br /> that are generally tolerant of saturated or inundated conditions or occasional <br /> flooding. They are mostly perennial species, except for a few annuals <br /> characteristic of vernal pools. Some of the species are useful for enhancing <br /> wildlife habitat values. Due to varying needs and constraints on vegetation <br /> height 1ensity,.texture, etc., not all species will be appropriate for channel <br /> or drainageway situations. Care should be taken to anticipate future <br /> vegetation growth, and to anticipate maintenance needs, in selecting species <br /> for a specific project. <br /> Wetland <br /> Scientific Name Common Name Indicator Status' <br /> TREES <br /> Alnus rhombifolia white alder FACW <br /> Alnus rubra red alder FAC <br /> Fraxinus latifolia Oregon ash FACW <br /> Populus trichocarpa black cottonwood FAC <br /> Rhamnus purshiana cascara <br /> Salix lasiandra Pacific willow FACW+ <br /> Salix piperi Piper's willow FACW <br /> Salix scouleriana Scouler's willow FAC <br /> SHRUBS AND VINES <br /> Clematis ligusticifolia western virgin's -bower FAC - <br /> Corpus stolonifera var. occidentalis red -osier dogwood FACW <br /> Crataegus douglasii var. douglasii black hawthorn FAC <br /> Physocarpus capitatus Pacific ninebark FAC + <br /> Pyrus fusca western crab -apple <br /> Rosa nutkana Nootka rose FAC <br /> Salix sessilifolia soft - leaved willow <br /> Spiraea douglasii var. douglasii Douglas' spiraea FACW <br /> GRASSES, RUSHES, AND SEDGES <br /> Agrostis exarata spike bentgrass FACW <br /> Alopecurus geniculatus water foxtail OBL <br /> Beckmannia syzigachne slough grass OBL <br /> Carex densa .. dense sedge OBL <br /> Carex feta - green -sheath sedge FACW <br /> Carex lanuginosa woolly sedge OBL <br /> Carex leporina hare sedge FACW <br /> Carex obnupta slough sedge OBL <br /> Carex stipata sawbeak sedge OBL <br /> 4 <br />