Purpose. Rank Designations

Transcription

1 Technical & Scientific Review Committee Revised January 2018 Purpose The plants on this list are species that threaten the health and vitality of native plant and animal communities, humans, and the economy. This list represents all non-native plant species that have been publically listed by Clackamas, Clark, Multnomah, Washington County Cooperative Weed Management Area (4CCWMA) MOU signatories. This list is intended to raise awareness about these species in our region. Most of these species have been documented within our CWMA boundary. Rank Designations The 4CCWMA Technical & Scientific Review Committee has assigned ranks to most of these species to help characterize their establishment and invasiveness in within our CWMA boundary. Rank designations are subject to and in many cases likely to change based on additional knowledge and/or refinement of rank definitions. Rank designations were made based on professional opinion, but do not represent a formal, scientific risk assessment for our region. These ranks are not intended to reflect partner ranks. Rank Definitions: A = red alert, most invasive, still eradicable on a regional or local scale or limited spread B = most invasive, locally abundant C = most invasive, widespread D = less aggressive, wildland invaders, less impact on natural systems E = aggressive primarily in horticultural/agricultural situations; note: this category is incomplete F= needs more info, should be noted if and where it's a problem W= watch list Needs investigation= has not yet been evaluated or not enough information is available to properly evaluate these species

2 4CCWMA Designation Scientific Name Common Name Family Listing Partners A Aegilops ovata ovate goatgrass Poaceae CSWCD, ODA A Aegilops triuncialis barbed goatgrass Poaceae CSWCD, ODA, OPRD A Alhagi pseudalhagi camelthorn Fabaceae CSWCD, CCNWCB, ODA, Port of A Alyssum corsicum yellow tuft Brassicaceae ODA A Alyssum murale yellow tuft Brassicaceae CSWCD, ODA A Ambrosia tomentosa skeletonleaf bursage Asteraceae CSWCD A Anchusa officinalis common bugloss Boraginaceae CSWCD, CCNWCB, ODA A Berteroa incana hoary allysum Brassicaceae CSWCD, CCNWCB, ODA A Bryonia alba white bryonia Cucurbitaceae CSWCD, CCNWCB, ODA, Port of A Carduus acanthoides plumeless thistle Asteraceae CoP, CSWCD, CCNWCB, ODA A Carthamus baeticus smooth distaff thistle Asteraceae CSWCD, ODA A Carthamus lanatus wooly distaff thistle Asteraceae CSWCD, ODA A Centaurea calcitrapa star-thistle Asteraceae A Centaurea iberica Iberian knapweed Asteraceae CWS, ODA, Port of, SPVRC, CoG, CoP, CSWCD, ODA, Port of A Centaurea solstitialis yellow starthistle Asteraceae CWS, ODA, OPRD, Port of, SPVRC, A Centaurea virgata squarrose knapweed Asteraceae CoP, CSWCD, ODA A Cuscuta japonica Japanese dodder Convolvulaceae CSWCD, ODA, Port of A Cyperus rotundus purple nutsedge Cyperaceae CSWCD, ODA, Port of A Delairea odorata Cape ivy Asteraceae CSWCD, ODA A Echium plantagineum salvation Jane Boraginaceae A Euphorbia oblongata oblong spurge Euphorbiaceae CoG, CoP, CSWCD, ODA, OPRD, Port of CoP, CSWCD, CCNWCB, ODA, OPRD, Port of, TNC-WV North

3 A Galega officinalis goatsrue Fabaceae A Heracleum mantegazzianum giant hogweed Apiaceae CoP, CSWCD, CCNWCB, CWS, ODA, OPRD, Port of, of, SPVRC, TNC-WV North,, A Hieracium aurantiacum orange hawkweed Asteraceae A Hieracium caespitosum yellow hawkweed, meadow hawkweed Asteraceae A Hieracium pilosella mouse-ear hawkweed Asteraceae A Hieracium piloselloides king-devil hawkweed Asteraceae of, SPVRC, TNC-WV North,, CWS, ODA, OPRD, Port of, SPVRC, ODA, OPRD, Port of, TNC-WV North CSWCD, CCNWCB, ODA, Port of CSWCD, CCNWCB, ODA, Port of A Hieracium X floribundum yellow hawkweed Asteraceae, A Hydrocharis morsus-ranae common frogbit Hydrocharitaceae CSWCD, ODA A Lepidium chalepensis lens-podded whitetop Brassicaceae A Lepidium draba hoary cress Brassicaceae A Lepidium latifolium perennial pepperweed Brassicaceae A Lepidium strictum CoG, ODA, OPRD, Port of ODA, OPRD, Port of, CSWCD, CWS, ODA, OPRD, Port of, hairy whitetop, upright pepperweed Brassicaceae CoG, Port of

4 A Limnobium laevigatum West Indian spongeplant Hydrocharitaceae CSWCD, ODA, Port of A Ludwigia peploides ssp. montevidensis Uruguay water primrose Onagraceae CoP, CSWCD, ODA A Lysimachia vulgaris garden loosestrife Primulaceae CCNWCB, ODA, Port of A Nardus stricta matgrass Poaceae CSWCD, ODA A Nymphoides peltata yellow floatingheart Menyanthaceae CWS, ODA, OPRD, Port of, THPRD A Onopordum acanthium scotch thistle Asteraceae ODA, OPRD, Port of A Onopordum tauricum scotch thistle Asteraceae CSWCD, ODA A Peganum harmala African rue Nitrariaceae CSWCD, ODA A Phragmites australis common reed Poaceae A Potentilla recta sulphur cinquefoil Rosaceae A Pueraria montana var. lobata kudzu Fabaceae CWS, ODA, Port of, ODA, OPRD, Port of, of, SPVRC, TNC-WV North,, A Rhaponticum repens Russian knapweed, hardheads Asteraceae ODA, Port of A Saccharum ravennae ravennagrass Poaceae CCNWCB, ODA A Sagittaria platyphylla delta arrowhead Alismataceae CoP A Silybum marianum blessed milk thistle Asteraceae ODA, OPRD, Port of A Solanum elaeagnifolium silverleaf nightshade Solanaceae CSWCD, CCNWCB, ODA A Spartina alterniflora smooth cordgrass Poaceae CSWCD, CCNWCB, ODA A Spartina anglica common cordgrass Poaceae CSWCD, CCNWCB, ODA A Spartina densiflora dense-flowered cordgrass Poaceae CSWCD, CCNWCB, ODA

5 A Spartina patens saltmeadow cordgrass Poaceae CSWCD, CCNWCB, ODA A Stratiotes aloides water soldiers Hydrocharitaceae CSWCD, ODA, Port of CSWCD, CWS, ODA, Port of A Trapa natans European water chestnut Lythraceae A Tussilago farfara coltsfoot Asteraceae CSWCD, ODA A Ulex europaeus gorse Fabaceae EMSWCD, ODA, OPRD, Port of, TNC-WV North, USFS - Mt Hood, A Utricularia inflata swollen bladderwort Lentibulariaceae CoP, Port of A Verbena bonariensis tall verbena Verbenaceae CoG, CoP, Port of A Zygophyllum fabago Syrian bean-caper Zygophyllaceae CSWCD, CCNWCB, ODA B Abutilon theophrasti velvetleaf Malvaceae B Acer platanoides Norway maple Sapindaceae CoP, CCNWCB, ODA, Port of CoG, CoP, Port of, SPVRC, CoG, CoP, CSWCD, ODA, OPRD, B Ailanthus altissima tree-of-heaven Simaroubaceae Port of, B Alisma lanceolatum lanceleaf water plantain Alismataceae CWS B Alliaria petiolata garlic mustard Brassicaceae of, SPVRC, TNC-WV North, THPRD,, B Amorpha fruticosa indigo bush Fabaceae CWS, ODA, OPRD, Port of, SPVRC B Artemisia absinthium absinth wormwood Asteraceae CCNWCB B Arum italicum Italian arum Araceae CoP, CWS, OPRD B Betula pendula European white birch Betulaceae CoP

6 B Brachypodium sylvaticum false brome Poaceae B Buddleja davidii butterfly bush Scrophulariaceae B Centaurea diffusa diffuse knapweed Asteraceae B Centaurea stoebe ssp. micranthos spotted knapweed Asteraceae B Centaurea X moncktonii meadow knapweed Asteraceae of, SPVRC, TNC-WV North,, ODA, OPRD, Port of, SPVRC, CoP, CCNWCB, CWS, ODA, OPRD, SPVRC, TNC-WV North, USFS - Mt Hood CWS, ODA, OPRD, Port of, SPVRC, TNC-WV North, CWS, ODA, OPRD, Port of, SPVRC, THPRD, USFS - Mt Hood B Clematis vitalba traveler s joy Ranunculaceae CoG, CoP, CSWCD, CWS, EMSWCD, ODA, OPRD, Port of, SPVRC, B Cyperus esculentus yellow nutsedge Cyperaceae CSWCD, CCNWCB, ODA, OPRD B Daphne laureola spurge laurel Thymelaeaceae of, SPVRC, TNC-WV North, B Euphorbia esula leafy spurge Euphorbiaceae CoP, CSWCD, CCNWCB, ODA B Euphorbia lathyris mole plant Euphorbiaceae CoP B Fallopia convolvulus climbing bindweed Polygonaceae CoG, CoP

7 B Fallopia japonica var. japonica Japanese knotweed Polygonaceae of, SPVRC, TNC-WV North, THPRD,, B Fallopia sachalinensis giant knotweed Polygonaceae B Geranium lucidum shining geranium Geraniaceae B Impatiens glandulifera policemen's helmet Balsaminaceae B Iris pseudacorus yellow flag Iridaceae B Lamiastrum galeobdolon yellow archangel Lamiaceae B Linaria dalmatica ssp. dalmatica Dalmation toadflax Plantaginaceae of, SPVRC, TNC-WV North, THPRD,, ODA, OPRD, Port of, SPVRC, CWS, ODA, OPRD, Port of, SPVRC, USFS - Mt Hood, CoG, CoP, CCNWCB, CWS, ODA, OPRD, Port of, SPVRC, CoG, CoP, CSWCD, CWS, ODA, OPRD, Port of, SPVRC CoG, CoP, CCNWCB, ODA, OPRD, Port of, yellow toadflax, butter-andeggs CoG, CoP, CSWCD, ODA, OPRD, B Linaria vulgaris Plantaginaceae Port of, B Lunaria annua money plant Brassicaceae CoP B Lythrum salicaria purple loosestrife Lythraceae of, SPVRC, THPRD, USFS - Mt Hood, B Melissa officinalis lemon balm Lamiaceae CoP B Mentha pulegium pennyroyal Lamiaceae CoP

8 B Myriophyllum aquaticum parrots feather Haloragaceae CWS, ODA, OPRD, Port of, B Paulownia tomentosa princess tree Paulowniaceae CoP B Pentaglottis sempervirens green alkanet, evergreen bugloss Boraginaceae CoP, OPRD B Persicaria wallichii var. wallichii Himalayan knotweed Polygonaceae CoG, CoP, CCNWCB, CWS, ODA, OPRD, Port of, SPVRC,, B Phytolacca americana pokeweed Phytolaccaceae CoG, CoP, CSWCD, EMSWCD, OPRD, Port of, SPVRC, TNC-WV North, B Populus alba white poplar Salicaceae CoP B Prunus lusitanica Portugal laurel Rosaceae CoG, CoP, OPRD B Ranunculus ficaria lesser celandine Ranunculaceae CoG, CoP, CSWCD, ODA, OPRD, Port of, THPRD B Rosa eglanteria sweet briar Rosaceae CoP, OPRD B Rosa multiflora multiflora rose Rosaceae CoG, CoP, OPRD B Senecio jacobaea Tansy ragwort Asteraceae ODA, OPRD, Port of, B Sisymbrium officinale hedge mustard Brassicaceae CoP B Solanum nigrum garden nightshade Solanaceae CoG, CoP B Sonchus oleraceus common sowthistle Asteraceae CoP B Ulmus pumila Siberian elm Ulmaceae CoP B Vinca major periwinkle (large leaf) Apocynaceae CoG, CoP, OPRD, SPVRC B Vinca minor periwinkle (small leaf) Apocynaceae CoG, CoP, OPRD, SPVRC C Alopecurus pratensis meadow foxtail Poaceae CoP C Anthoxanthum odoratum sweet vernalgrass Poaceae CoP C Arrhenatherum elatius tall oatgrass Poaceae CoP C Bromus diandrus ripgut brome Poaceae CoP C Calystegia sepium ssp. angulata hedge false bindweed Convolvulaceae CoG, CoP

9 C Cirsium arvense Canada thistle Asteraceae C Conium maculatum poison-hemlock Apiaceae ODA, Port of, SPVRC, ODA, Port of, USFS - Mt Hood CoG, CoP, ODA, Port of, C Convolvulus arvensis field morning-glory Convolvulaceae C Crataegus monogyna English hawthorn Rosaceae CoG, CoP C Cytisus scoparius Scot s broom Fabaceae CoG, CoP, CSWCD, ODA, OPRD, Port of, SPVRC, USFS - Mt Hood C Daucus carota Queen Anne s lace Apiaceae CoG, CoP, CSWCD C Dipsacus fullonum common teasel Dipsacaceae CoG, CoP, CSWCD, Port of C Egeria densa Brazilian elodea Hydrocharitaceae CoP, CSWCD, CCNWCB, ODA, OPRD, Port of, USFS - Mt Hood C Elymus repens quackgrass Poaceae CoP, C Fallopia X bohemica bohemian knotweed Polygonaceae CWS, EMSWCD, OPRD, SPVRC, TNC-WV North, THPRD, C Foeniculum vulgare fennel Apiaceae CoG, CoP CoG, CoP, CSWCD, ODA, Port of C Geranium robertianum herb robert Geraniaceae, SPVRC, C Geum urbanum European avens, Herb bennet Rosaceae CoP, OPRD C Hedera helix English ivy Araliaceae CoG, CoP, CSWCD, ODA, OPRD, Port of, SPVRC, USFS - Mt Hood C Hedera hibernica Atlantic ivy Araliaceae CoG, CoP, CSWCD, ODA, OPRD C Holcus lanatus velvetgrass Poaceae CoP

10 CoG, CoP, CSWCD, ODA, OPRD, C Hypericum perforatum St. John's wort Hypericaceae Port of, C Hypochaeris radicata spotted cat s ear Asteraceae CoP, CSWCD C Ilex aquifolium English holly Aquifoliaceae CoG, CoP, Port of, SPVRC, C Impatiens capensis jewelweed Balsaminaceae CoP, CSWCD, OPRD C Juncus effusus ssp. effusus European soft rush Juncaceae CoP C Lactuca serriola prickly lettuce Asteraceae CoG, CoP C Lapsana communis nipplewort Asteraceae CoP C Lathyrus latifolius everlasting pea Fabaceae CoP, CSWCD, ODA, OPRD, Port of, C Leucanthemum vulgare oxeye daisy Asteraceae CoG, CoP, CSWCD C Lolium perenne perennial ryegrass Poaceae CoP C Lotus corniculatus bird s foot trefoil Fabaceae CoG, CoP C Lotus uliginosus greater bird's foot trefoil Fabaceae CoP C Lysimachia nummularia creeping jenny Primulaceae CoP C Lythrum portula spatula leaf purslane Lythraceae CoP C Melilotus officinalis sweetclover Fabaceae CoP C Mycelis muralis wall lettuce Asteraceae CoP C Myriophyllum spicatum Eurasian watermilfoil Haloragaceae CoG, CoP, CCNWCB, CWS, ODA, OPRD, Port of, USFS - Mt Hood C Nasturtium officinale European watercress Brassicaceae CoP C Parentucellia viscosa yellow glandweed Orobanchaceae CoG, CoP C Phalaris arundinacea reed canarygrass Poaceae CoG, CoP, CSWCD, ODA, OPRD, Port of, SPVRC, USFS - Mt Hood C Potamogeton crispus curly leaf pondweed Potamogetonaceae CoP, CSWCD, C Prunus avium sweet cherry Rosaceae CoP, OPRD, SPVRC C Prunus laurocerasus English laurel, cherry laurel Rosaceae CoG, CoP, SPVRC C Ranunculus acris tall buttercup Ranunculaceae CoP C Ranunculus repens creeping buttercup Ranunculaceae CoG, CoP, C Robinia pseudoacacia black locust Fabaceae CoG, CoP,

11 C Rubus bifrons Armenian blackberry, Himalayan blackberry Rosaceae C Rubus laciniatus Evergreen blackberry, cutleaf blackberry Rosaceae CoP, CSWCD C Schedonorus arundinaceus tall fescue Poaceae CoP C Solanum dulcamara bittersweet nightshade Solanaceae CoP CoG, CoP, CSWCD, ODA, OPRD, Port of, SPVRC, USFS - Mt Hood CoG, CoP, CSWCD, ODA, Port of C Taeniatherum caput-medusa medusahead Poaceae C Tanacetum vulgare common tansy Asteraceae CoP, CSWCD, CCNWCB, OPRD C Tribulus terrestris puncturevine Zygophyllaceae CoG, CSWCD, CCNWCB, ODA, OPRD, Port of C Trifolium arvense hare's foot clover Fabaceae CoP C Trifolium repens white clover Fabaceae CoP C Trifolium subterraneum subterraneum clover Fabaceae CoP C Vicia cracca tufted vetch Fabaceae CoG, CoP C Vicia sativa garden Vetch Fabaceae CoG, CoP C Vicia villosa winter vetch Fabaceae CoP D Acer pseudoplatanus sycamore maple Sapindaceae CoP D Aegopodium podagraria goutweed, Bishop's weed Apiaceae CoP D Aesculus hippocastanum horse chestnut Sapindaceae CoP D Agrostis capillaris colonial bentgrass Poaceae CoP D Agrostis stolonifera Creeping bentgrass Poaceae CoP D Ambrosia artemisiifolia common ragweed Asteraceae CSWCD, ODA, Port of, D Arctium minus common burdock Asteraceae CoP D Bromus tectorum cheatgrass Poaceae CoP D Callitriche stagnalis pond water-starwort Plantaginaceae CoP D Carduus pycnocephalus Italian thistle Asteraceae D Carduus tenuiflorus slender flowered thistle Asteraceae ODA, OPRD, Port of, TNC-WV North ODA, OPRD

12 D Chondrilla juncea rush skeletonweed Asteraceae ODA, OPRD, Port of, SPVRC D Cichorium intybus chicory Asteraceae CoP D Cirsium vulgare bull thistle Asteraceae ODA, Port of, SPVRC, D Cynoglossum officinale houndstongue Boraginaceae CSWCD, CCNWCB, ODA, Port of, D Hieracium laevigatum smooth hawkweed Asteraceae CoG, CoP, CCNWCB D Houttuynia cordata chameleon plant Saururaceae CoP D Laburnum X watereri Vossi' Fabaceae CoP D Lepidium campestre Field pepperweed Brassicaceae Port of D Lepidium didymum Lesser wartcress Brassicaceae Port of D Lepidium heterophyllum Purpleanther field pepperweed Brassicaceae Port of D Ligustrum vulgare privet Oleaceae CoP D Lolium multiflorum annual ryegrass Poaceae CoP D Nymphaea odorata fragrant waterlily, white waterlily Nymphaeaceae CoP, CCNWCB, Port of, D Orobanche minor hellroot, small broomrape Orobanchaceae CSWCD, ODA, Port of D Phleum pratense timothy Poaceae CoP D Poa annua annual bluegrass Poaceae CoP D Rumex obtusifolius broad leaved dock Polygonaceae SPVRC D Schoenoplectus mucronatus ricefield bulrush Cyperaceae CCNWCB D Secale cereale cultivated rye Poaceae CoP D Senecio vulgaris common groundsel Asteraceae CSWCD D Silene coronaria mullein pink, rose campion Caryophyllaceae CoP white campion, bladder D Silene latifolia campion Caryophyllaceae CoP D Solanum physalifolium hairy nightshade Solanaceae CoP D Solanum rostratum buffalobur Solanaceae CoG, CSWCD, CCNWCB, ODA, Port of

13 D Sonchus arvensis field sowthistle Asteraceae CoP, CSWCD D Sonchus asper perennial sowthistle Asteraceae CoP D Sorbus aucuparia European mountain-ash Rosaceae CoP D Trifolium pratense red clover Fabaceae CoP D Verbascum blattaria moth mullein Scrophulariaceae CoP D Verbascum thapsus mullein Scrophulariaceae CoP D Viburnum opulus var. opulus Guelder rose Adoxaceae CoP D Xanthium spinosum cocklebur Asteraceae CSWCD, ODA, E Carduus nutans musk thistle Asteraceae CoP, CSWCD, CCNWCB, ODA, Port of E Euphorbia myrsinites myrtle spurge Euphorbiaceae CSWCD, CCNWCB, ODA E Galium odoratum sweet woodruff Rubiaceae CoP E Lamium maculatum white nancy, spotted henbit Lamiaceae CoP E Sorghum halepense Johnson grass Poaceae CoP, CCNWCB, ODA, Port of, E Trifolium hybridum alsike clover Fabaceae CoP F Anthriscus sylvestris wild chervil Apiaceae CSWCD F Centaurea jacea brown knapweed Asteraceae CoG, CoP, CCNWCB, CWS F Echium vulgare viper's bugloss, blueweed Boraginaceae CCNWCB F Laburnum anagyroides golden Chain tree Fabaceae CoP F Phyllostachys heteroclada water bamboo Poaceae CoP F Phyllostachys nidularia big-node bamboo Poaceae CoP F Sasa palmata broadleaf Bamboo Poaceae CoP F Sasa veitchii bamboo Poaceae CoP F Spartium junceum Spanish broom Fabaceae CSWCD, CCNWCB, ODA, OPRD needs investigation Acaena novae-zelandiae biddy-biddy Rosaceae ODA needs investigation Adonis aestivalis pheasant's eye Ranunculaceae ODA CSWCD, ODA, OPRD, Port of needs investigation Aegilops cylindrica jointed goatgrass Poaceae needs investigation Allium triquetrum 3-angled onion Amaryllidaceae CoP, Port of small bugloss, European needs investigation Anchusa arvensis bugloss Boraginaceae CCNWCB needs investigation Anchusa azurea Italian bugloss Boraginaceae OPRD

14 needs investigation Cabomba caroliniana Cabombaceae CCNWCB, needs investigation Castanea mollissima Chinese chestnut Fagaceae SPVRC needs investigation Centaurea macrocephala Asteraceae CCNWCB needs investigation Centaurea nigra Asteraceae CCNWCB needs investigation Centaurea nigrescens tyrol knapweed, short fringed knapweed Asteraceae CCNWCB, CWS needs investigation Clematis orientalis Ranunculaceae CCNWCB needs investigation Crupina vulgaris common crupina Asteraceae CCNWCB, ODA needs investigation Cuscuta approximata smoothweed alfalfa dodder Convolvulaceae Port of needs investigation Dipsacus laciniatus Dipsacaceae ODA needs investigation Elaeagnus angustifolia Russian-olive Elaeagnaceae CCNWCB needs investigation Epilobium hirsutum Onagraceae CCNWCB needs investigation Glyceria maxima Poaceae CCNWCB needs investigation Gypsophila paniculata baby's breath Caryophyllaceae CCNWCB needs investigation Halogeton glomeratus saltlover Amaranthaceae CSWCD, ODA needs investigation Helianthus ciliaris Asteraceae CSWCD, CCNWCB needs investigation Hemizonia pungens Asteraceae CSWCD, CCNWCB, ODA needs investigation Hieracium atratum polar hawkweed Asteraceae CCNWCB needs investigation Hieracium flagellare whiplash hawkweed Asteraceae CCNWCB needs investigation Hieracium glomeratum queen-devil hawkweed Asteraceae CCNWCB needs investigation Hieracium lactucella pale hawkweed Asteraceae CCNWCB needs investigation Hieracium maculatum spotted hawkweed Asteraceae CCNWCB needs investigation Hieracium sabaudum European hawkweed Asteraceae CCNWCB needs investigation Hyoscyamus niger black henbane, hog's bean Solanaceae CCNWCB needs investigation Hypericum calycinum ornamental St. John's wort Hypericaceae OPRD needs investigation Isatis tinctoria Brassicaceae CCNWCB, ODA needs investigation Kochia scoparia Amaranthaceae CCNWCB, ODA, Port of hairy whitetop, globepodded needs investigation Lepidium appelianum hoarycress Brassicaceae CCNWCB, ODA, Port of needs investigation Ludwigia grandiflora water primrose Onagraceae CSWCD, Port of needs investigation Ludwigia hexapetala Onagraceae ODA, OPRD, Port of

15 needs investigation Ludwigia peploides Onagraceae CSWCD, CCNWCB, ODA, OPRD, Port of needs investigation Lythrum virgatum Lythraceae CCNWCB needs investigation Mirabilis nyctaginea Nyctaginaceae CCNWCB needs investigation Myriophyllum heterophyllum Haloragaceae CCNWCB needs investigation Picris hieracioides Asteraceae CCNWCB needs investigation Rorippa sylvestris creeping yellow cress Brassicaceae CoG, ODA, Port of needs investigation Sagittaria graminea Alismataceae CCNWCB needs investigation Salvia aethiopis Lamiaceae CCNWCB, ODA needs investigation Salvia pratensis Lamiaceae CCNWCB needs investigation Salvia sclarea Lamiaceae CCNWCB needs investigation Sphaerophysa salsula swainsonpea Fabaceae ODA needs investigation Thymelaea passerina Thymelaeaceae CCNWCB needs investigation Utricularia vulgaris common bladderwort Lentibulariaceae CoP W Allium vineale wild garlic Amaryllidaceae OPRD W Ampelopsis brevipedunculata porcelain-berry Vitaceae CoP W Arundo donax giant reed Poaceae CSWCD, CWS W Aucuba japonica Japanese laurel Garryaceae CoP CoP, CSWCD, CCNWCB, CWS, W Butomus umbellatus flowering rush Butomaceae ODA, Port of W Carex pendula drooping sedge Cyperaceae CoP, CSWCD, Port of W Cortaderia jubata Jubata grass Poaceae CoG, CoP, ODA, OPRD, Port of W Cortaderia selloana pampas grass Poaceae CoP, OPRD, W Crocosmia X crocosmiiflora crocosmia, montbretia Iridaceae CoP W Cytisus striatus Portuguese Broom Fabaceae CoP, ODA, OPRD W Epipactis helleborine Orchidaceae CoP, Port of W Erica lusitanica Spanish heath Ericaceae ODA W Genista monspessulana French Broom Fabaceae W Hieracium lachenalii common hawkweed Asteraceae CoP, CSWCD, CCNWCB, ODA, OPRD CoG, CoP, CCNWCB, OPRD, SPVRC

16 W Hieracium murorum common hawkweed, wall hawkweed Asteraceae CCNWCB, OPRD W Hydrilla verticillata hydrilla Hydrocharitaceae CoP, CSWCD, CCNWCB, CWS, ODA, Port of, USFS - Mt Hood W Impatiens balfourii Balfour's touch-me-not Balsaminaceae W Lathyrus sylvestris narrow-leaved everlasting pea Fabaceae OPRD W Parthenocissus quinquefolia Virginia creeper, woodbine, fiveleaved ivy Vitaceae CoP W Petasites japonicus Japanese sweet coltsfoot Asteraceae CoG, CoP, SPVRC W Phalaris aquatica harding grass Poaceae CoP, Port of W Phyllostachys atrovaginata incense bamboo Poaceae CoP W Rubus vestitus European BB Rosaceae OPRD CoG, CoP, CCNWCB, ODA, Port of W Tamarix ramosissima saltcedar, tamarisk Tamaricaceae W Viburnum plicatum doublefile viburnum Adoxaceae OPRD Partners: City of (CoP); City of Gresham (CoG); Clackamas Soil & Water Conservation District (CSWCD); Clean Water Services (CWS); Clackamas County Noxious Weed Control Board (CCNWCB); Oregon Department of Agriculture (ODA); Oregon Parks and Recreation Department (OPRD); Port of ; (SPVRC); United States Forest Service (USFS)-Mt. Hood; West Multnomah Soil & Water Conservation District ();