Natives
Trees
Oregon white oak (Quercus garryana)
Douglas fir (Pseudotsuga menziesii)
Red Alder (Alnus macrophyllum)
Pacific willow (Salix lucida ssp. lasiandra)
Oregon ash (Franxinus latifolia)
Black cottonwood (Populus balsamifera ssp. trichocarpa)
Shrubs
Red-osier dogwood (Cornus sericea)
California hazel (Corlus cornuta var. californica)
Black Hawthorn (Crataegus douglasii)
Oregon grape (Mahonia aquifolium)
Indian Plum (Oemleria cerasiformis)
Pacific ninebark (Physocarpus capitatus)
Common Snowberry (Symphoricarpos albus)
Chokecherry (Prunus virginiana)
Forbs
Water hemlock (Cicuta douglasii)
Camas (Camassia)
Stinging nettle (Urtica dioica)
Jewelweed (Impatiens capensis)
Pacific waterleaf (Hydrophyllum tenuipes)
Western meadow-rue (Thalictrum occidentale)
Grass
Tufted hairgrass (Deschampsia cespitosa)
Blue wildrye (Elymus glaucus)
Invasives
Shrubs
Himalayan blackberry (Rubus armeniacus)
Scotch broom (Cytisus scoparius)
Common Hawthorn (Crataegus monogyna)
Forbs
Saint Johnswort (Hypericum perforatum)
Tansy Ragwort (Senecio jacobaea)
Grass
Tall fescue (Schedonorus phoenix)
Reed canarygrass (Phalaris arundinaceae)
*Credit to Michael Russell for putting this list together