Plant list updated by Cyndy Dillon, Carol Smith, Regina Johnson, Bob Wodsworth Sharon Berquist-Moody, and Lois Sweany - November 2012 Twahnoh Park (Union) Twahnoh Park (Union), Compiled by, Updated 2012 by * non-native Genus/Species Common Name Plant Family

Acer macrophyllum Big leaf maple Aceraceae Acer circinatum Vine maple Aceraceae Achlys triphylla vanilla leaf Berberidaceae Actaea rubra Baneberry Ranunculaceae Adenocaulon bicolor pathfinder Asteraceae Adiantum aleuticum maidenhair fern Pteridaceae Alnus rubra red alder Betulaceae Arbutus menziesii Pacific madrone Ericaceae Asarum caudatum wild ginger Aristolochiaceae Athyrium filix-femina lady fern Dryopteridaceae Bellis perennis* English daisy Asteraceae Berberis (Mahonia) aquifolium tall Oregon grape Berberidaceae Berberis (Mahonia)nervosa dull Oregon-grape Berberidaceae Blechnum spicant deer fern Blechnaceae Cardamine hirsuta* hairy bittercress, shotweed Brassicaeae Chamerion angustifolium fireweed Onagraceae Chimophila umbellata pipsissewa, prince's pine Ericaceae Cirsium vulgare* bull thistle Asteraceae Claytonia sibirica Siberian miner's-lettuce Montiaceae Convolvus arvensis* field bindweed. morning glory Convolvulaceae Cornus nuttallii Pacific dogwood Cornaceae Cornus sericea red-osier dogwood Cornaceae Corylus cornuta beaked hazelnut Betulaceae Dactylis glomerata* orchard grass Festuceae Digitalis purpurea* purple foxglove Scrophulariaceae Dryopteris expansa spreading or spiny wood fern Dryopteridaceae Equisetum arvense common, field horsetail Equicetaceae Frangula (Rhamnus) purshiana cascara, buckthorn Rhamnaceae Galium aparine cleavers, common bedstraw Rubiaceae Gaultheria shallon salal Ericaceae Geranium robertianum* herb Robert, stinky Bob Gerinaceae Geum macrophyllum Oregon avens, large-leafed avens Rosaceae Goodyera oblongifolia western rattlesnake plantain Orchidaceae Hedera helix* English ivy Araliaceae Heracleum lanatum cow parsnip Apiaceae Hieracium albiflorum white-flowered hawkweed Asteraceae Holodiscus discolor Ocean spray Rosaceae Hydrophyllum tenuipes Pacific water leaf Hydrophyllaceae Hypochaeris radicata* hairy cat's ear, false dandelion Asteraceae Ilex aquifolium* English holly Aquifoliaceae Juncus tenuis slender rush Juncaceae Lactuca muralis* wall lettuce Asteraceae Linnaea borealis Western twinflower Caprifoliaceae Lonicera ciliosa orange trumpet honeysuckle Caprifoliaceae Lonicera hispidula hairy or pink honeysuckle Caprifoliaceae Lupinus spp. lupines Fabaceae Lysichiton americanum western skunk cabbage Araceae Maianthemum dilatum false lily of the valley Liliaceae Malus fusca Pacific crabapple Rosaceae Mycelis (Lactuca) muralis wall lettuce Asteraceae Oemleria cerasiformis Indian plum, osoberry Rosaceae Oenanthe sarmentosa Pacific water parsley Apiaceae Oplopanax horridus Devil's club Araliaceae Petasites frigidus var. palmatus palmate coltsfoot Asteraceae Picea sitchensis Sitka spruce Pinaceae Plantago major* common plantain Plantaginaceae Poa pratensis* Kentucky bluegrass Poaceae Polypodium glycyrrhiza licorice fern Polypodiaceae Polystichum munitum western sword fern Dryopteridaceae Populus tremuloides quaking aspen Salicaceae Populus trichocarpa (balsamifera) black cottonwood Salicaceae Prunella vulgaris self-heal Lamiaceae (Labiatae) Prunus laurocerasus* cherry laurel Rosaceae Pseudotsuga menziesii Douglas-fir Pinaceae Pteridium aquilinum bracken fern Dennstaedtiaceae Pyrola asarifolia pink wintergreen Ericaceae Pyrola picta white-veined wintergreen Ericaceae Ranunculus repens* creeping buttercup Ranunculaceae Rhododendron macrophyllum Pacific rhododendron Ericaceae Ribes lacustre black gooseberry Grossulariaceae Ribes sanguinueum red flowering currant Grossulariaceae Rosa gymnocarpa baldhip rose Rosaceae Rosa pisocarpa clustered rose Rosaceae Rubus (discolor) bifrons* Himalayan blackberry Rosaceae Rubus leucodermis white bark raspberry, blackcap Rosaceae Rubus parviflorus thimbleberry Rosaceae Rubus spectabilis salmonberry Rosaceae Rubus ursinus creeping blackberry, dewberry Rosaceae Rumex obtusifolius* bitter or broad-leaved dock Polygonaceae Salix scouleriana Scouler's willow Salicaceae Sambucus caerulea blue elderberry Adoxaceae Sambucus racemosa coast red elderberry Adoxaceae Scirpus spp. bulrush spp. Cyperaceae Sonchus spp.* sow thistle Asteraceae Streptopus amplexifolius clasping twisted stalk Liliaceae Symphoricarpos albus snowberry Caprifoliaceae Taraxacum officinale* dandilion Asteraceae Tellima grandiflora fringecup Saxifragaceae Thuja plicata Western red cedar Cupressaceae Tiarella trifoliata foamflower Saxifragaceae Tolmiea menziesii youth-on-age, piggyback plant Saxifragaceae Trientalis latifolia broad leaved, Western starflower Myrsinaceae Trifoloium pratense* red clover Fabaceae Trillium ovatum western trillium Liliaceae Tsuga heterophylla western hemlock Pinaceae Typha latifolia common cattail Typhaceae Urtica dioica stinging nettle Urticaceae Vaccinium ovatum evergreen huckleberry Ericaceae Vaccinium parvifolium red huckleberry Ericaceae Viola sempervirens evergreen violet Violaceae ,