Scientific Name Common Name patens salt meadow cordgrass

Myriophyllum parrotfeather junceum Spanish broom aquaticum Stratiotes aloides water soldier Myriophyllum variable-leaf milfoil AND heterophyllum Tamarix ramosissima saltcedar SEEDS WHOSE Myriophyllum spicatum Eurasian watermilfoil Thymelaea passerina spurge flax Najas minor slender-leaved naiad, brittle SALES ARE naiad Torilis arvensis hedgeparsley

Nymphoides peltata yellow floating heart Trapa natans water chestnut, bull nut PROHIBITED IN Trapa bicornus water caltrap, devil's pod, bat Onopordum acanthium Scotch thistle nut WASHINGTON Polygonum cuspidatum Japanese knotweed Ulex europaeus gorse, furze STATE Polygonum polystachyum Himalayan knotweed Utricularia inflata swollen bladderwort Polygonum sachalinense giant knotweed Zygophyllum fabago Syrian bean-caper A Summary of Current Polygonum x bohemicum Bohemian knotweed, Please Note: This list is comprised of the most recent Regulations on Sales of Noxious Japanese and giant and accepted scientific and common names of the quar- knotweed hybrid Weeds and Other Invasive antine species. Regulated status also applies to Exotic Plants Proboscidea louisianica unicorn-plant all synonyms of these botanical names and interspecies hybrids if both parents are regulated species. Pueraria montana var. kudzu lobata WHERE CAN I OBTAIN A COPY OF THE RULES? Sagittaria graminea grass-leaved arrowhead Copies of the quarantines may be obtained from:

Sagittaria platyphylla delta arrowhead Washington State Department of Agriculture Salvia aethiopis Mediterranean sage Plant Protection Division P. O. Box 42560 Salvia pratensis meadow clary Olympia, WA 98504-2560 Salvia sclarea clary sage For more information contact: Schoenoplectus ricefield bulrush Plant Services Program mucronatus (360) 902-1874 WAC 16-752-600 through 660 Senecio jacobaea tansy ragwort [email protected]

Silybum marianum milk thistle WSDA Weed Specialist - Yakima Office (509) 249-6973 Solanum elaeagnifolium silverleaf nightshade

Solanum rostratum buffaloburr Washington State Noxious Weed Control Board (360) 902-2053 Washington State Soliva sessilis lawnweed Department of Agriculture Sorghum halepense johnsongrass Plant Protection Division Plant Services Program Spartina alterniflora smooth cordgrass Inquiries regarding availability of this publication in alterna- tive formats should be directed to the WSDA Information Revised June 2014 Spartina anglica common cordgrass Office at (360) 902-1813 or Telecommunications Device for the Deaf (360) 902-1996 dense-flowered cordgrass WHY ARE SALES PROHIBITED? Carduus pycnocephalus Italian thistle Hibiscus trionum Venice mallow, flower-of-an- hour, bladder ketmia, modes- Every year noxious weeds and other invasive exotic Carduus tenuiflorus slenderflower thistle ty, shoo-fly plants cost Washington millions of dollars in lost produc- tion, public and private control costs, and environmental Centaurea calcitrapa purple star thistle Hieracium aurantiacum orange hawkweed, orange degradation. These exotic introductions to Washington paintbrush, red daisy flame- have displaced native plant communities, damaged range Centaurea diffusa diffuse knapweed weed, devil's weed, grim-the- and recreational lands, and degraded fragile wetlands. collier Escaped ornamentals are one significant source of infes- Centaurea jacea brown knapweed, rayed knap- tation. It is often difficult to predict which ornamentals will weed, brown centaury, horse- Hieracium caespitosum yellow hawkweed, yellow be invasive and aggressive. Scotch broom, purple loose- knobs, hardheads paintbrush, devil's paintbrush, strife, and kochia are prime examples of plants which yellow devil, field hawkweed, Centaurea macrocephala bighead knapweed have escaped cultivation and caused enormous economic king devil and environmental damage. The quarantines identify Centaurea nigra black knapweed yellow devil hawkweed plants known to be invasive and a detriment to the state's Hieracium floribundum natural resources. These regulations will serve to prevent Centaurea nigrescens Vochin knapweed Hieracium pilosella mouse ear hawkweed the continued introduction of these problem plants into Washington. Centaurea stoebe spotted knapweed Hieracium sabaudum European hawkweed Chaenorrhinum minus dwarf snapdragon WHICH PLANTS AND SEEDS ARE PROHIBITED? Hydrilla verticillata hydrilla Noxious Weed Seed and Clematis orientalis oriental clematis Hydrocharis European frog-bit morsus-ranae Plant Quarantine, WAC 16-752-600 Crassula helmsii Australian swamp stonecrop Impatiens glandulifera policeman’s helmet It is prohibited to transport, buy, sell, offer for sale, or Crupina vulgaris common crupina distribute plants or plant parts of the regulated species Isatis tinctoria dyers' woad listed here into or within the state of Washington or to Cyperus rotundus purple nutsedge sell, offer for sale, or distribute seed packets of seed, Kochia scoparia kochia, summer-cyprus, Cytisus scoparius scotch broom flower seed blends, or wildflower mixes of these regulat- burning-bush, fireball, ed species into or within the state of Washington. Daucus carota wild carrot, Queen Anne's lace Mexican fireweed

Scientific Name Common Names Echium vulgare blueweed, blue thistle, blue devil, Lagarosiphon major African elodea viper's bugloss, snake flower Abutilon theophrasti velvetleaf Leucanthemum vulgare oxeye daisy, white daisy, Egaria densa Brazilian elodea whiteweed, field daisy, Alliaria petiolata garlic mustard marguerite, poorland flower Epilobium hirsutum hairy willow herb Amorpha fruticosa indigobush, lead plant Linaria dalmatica spp. Dalmatian toadflax Euphorbia esula leafy spurge dalmatica Anchusa officinalis common bugloss, alkanet, anchusa Euphorbia oblongata eggleaf spurge Ludwigia hexapetala water primrose

Anthriscus sylvestris wild chervil Galega officinalis goatsrue Ludwigia peploides floating primrose-willow

Arundo donax (except Giant reed Genista monspessulana French Broom Lysimachia vulgaris garden loosestrife variegated cultivars) Geranium lucidum shiny geranium Lythrum salicaria purple loosestrife Brachypodium false brome sylvaticum Glossostigma diandrum mud mat Lythrum virgatum wand loosestrife

Butomus umbellatus flowering rush Glyceria maxima reed sweetgrass, tall manna Mirabilis nyctaginea wild four o’clock, grass umbrealla-wort Cabomba caroliniana fanwort Helianthus ciliaris Texas blueweed Murdannia keisak marsh dew flower, Asian Carduus acanthoides plumeless thistle spiderwort Heracleum giant hogweed, giant cow pars- Carduus nutans musk thistle, nodding thistle mantegazzianum nip