Plants and Seeds Whose Sales Are Prohibited In

WETLAND AND AQUATICS WETLAND AND AQUATICS WAC 16-752-505 WAC 16-752-505 Continued from previous list. It is prohibited to transport, buy, sell, offer for sale, or to PLANTS AND distribute plants or plant parts of these regulated plants, Spartina alterniflora smooth cordgrass into or within the state of Washington. It is further prohib- SEEDS WHOSE ited to intentionally transplant wild plants and/or plant parts Spartina anglica common cordgrass of these species within the state of Washington. Spartina densiflora dense-flowered cordgrass SALES ARE Scientific Name Common Name Spartina patens salt meadow cordgrass PROHIBITED IN Butomus umbellatus flowering rush Stratiotes aloides water soldier

Cabomba caroliniana fanwort Trapa natans water chestnut, bull nut WASHINGTON

Crassula helmsii Australian swamp stonecrop water caltrap, devil's pod, bat Trapa bicornus nut STATE Egeria densa Brazilian elodea Utricularia inflata swollen bladderwort Epilobium hirsutum hairy willow herb A Summary of Current Glossostigma diandrum mud mat Please Note: This prohibited plant list comprises the most recent and accepted Regulations on Sales of Noxious scientific and common names of the prohibited plant species in Washington State. Gyceria maxima reed sweetgrass, tall manna However, the prohibited status also applies to any and all synonyms. Weeds and Other Invasive grass Exotic Plants

Hydrilla verticillata hydrilla WHERE CAN I OBTAIN A COPY OF THE RULES? Hydrocharis morsus-ranae European frog-bit Copies of the quarantines may be obtained from: Lagarosiphon major African elodea Washington State Department of Agriculture Ludwigia hexapetala water primrose Plant Protection Division P. O. Box 42560 Ludwigia peploides floating primrose-willow Olympia, WA 98504-2560 Lysimachia vulgaris garden loosestrife For more information contact: Murdannia keisak marsh dew flower, Asian spider- Sierra Campbell wort (360) 902-1874 Myriophyllum aquaticum parrotfeather WAC 16-752-400 through 420 WSDA Weed Specialist - Yakima Office WAC 16-752-500 through 525 Myriophyllum heterophyllum variable-leaf milfoil (509) 249-6973 WAC 16-752-600 through 660 Myriophyllum spicatum Eurasian watermilfoil Washington State Noxious Weed Control Board Najas minor slender-leaved naiad, brittle (360) 902-2053 naiad

Nymphoides peltata yellow floating heart Washington State Sagittaria graminea grass-leaved arrowhead Inquiries regarding availability of this publication in alterna- Department of Agriculture tive formats should be directed to the WSDA Information Plant Protection Division Sagittaria platyphylla delta arrowhead Office at (360) 902-1813 or Telecommunications Device for the Deaf Revised January 2010 Schoenoplectus mucrona- ricefield bulrush (360) 902-1996 tus

WHY ARE SALES PROHIBITED? Centaurea biebersteinii spotted knapweed Mirabilis nyctaginea wild four o'clock, umbrella-wort Every year noxious weeds and other invasive exotic plants cost Centaurea macrocephala bighead knapweed Onopordum acanthium Scotch thistle Washington millions of dollars in lost production, public and pri- vate control costs, and environmental degradation. These exotic Centaurea nigra black knapweed Polygonum cuspidatum Japanese knotweed introductions to Washington have displaced native plant commu- nities, damaged range and recreational lands, and degraded Centaurea nigrescens Vochin knapweed Polygonum Himalayan knotweed fragil wetlands. Escaped ornamentals are one significant source polystachyum of infestation. It is often difficult to predict which ornamentals will Chaenorrhinum minus dwarf snapdragon be invasive and aggressive. Scotch broom, purple loosestrife, Polygonum sachalin- giant knotweed and kochia are prime examples of plants which have escaped Crupina vulgaris common crupina ense cultivation and caused enormous economic and environmental damage. The quarantines identify plants known to be invasive Cytisus scoparius Scotch broom Polygonum x bo- Bohemian knotweed, Japanese and and a detriment to the state's natural resources. These regula- hemicum giant knotweed hybrid tions will serve to prevent the continued introduction of these Daucus carota wild carrot, Queen Anne's lace Proboscidea louisianica unicorn-plant problem plants into Washington. Echium vulgare blueweed, blue thistle, blue devil, viper's bugloss, snake flower Pueraria montana var. kudzu WHICH PLANTS AND SEEDS ARE PROHIBITED? lobata Euphorbia esula leafy spurge Terrestrial Noxious Weed Seed and Salvia aethiopis Mediterranean sage Plant Quarantine WAC 16-752-610 Euphorbia oblongata eggleaf spurge Salvia pratensis meadow clary

Galega officinalis goatsrue It is prohibited to transport, buy, sell or offer for sale, or Salvia sclarea clary sage distribute all plants or plant parts, seeds in packets, blends Geranium lucidum shiny geranium or "wildflower mixes" of these regulated species: Senecio jacobaea tansy ragwort Helianthus ciliaris Texas blueweed Silybum marianum milk thistle Scientific Name Common Names Heracleum giant hogweed, giant cow parsnip mantegazzianum Solanum elaeagnifolium silverleaf nightshade Abutilon theophrasti velvetleaf Hibiscus trionum Venice mallow, flower-of-an-hour, blad- Solanum rostratum buffaloburr Alliaria petiolata garlic mustard der ketmia, modesty, shoo-fly Soliva sessilis lawnweed Hieracium aurantiacum orange hawkweed, orange paintbrush, Amorpha fruticosa indigobush, lead plant red daisy flameweed, devil's weed, grim Sorghum halepense johnsongrass Anchusa officinalis common bugloss, alkanet, anchusa -the-collier Spartium junceum Spanish broom Hieracium caespitosum yellow hawkweed, yellow paintbrush, Anthriscus sylvestris wild chervil devil's paintbrush, yellow devil, field Tamarix ramosissima saltcedar Brachypodium sylvati- false brome hawkweed, king devil cum Thymelaea passerina spurge flax Hieracium floribundum yellow devil hawkweed Carduus acanthoides plumeless thistle Torilis arvensis hedgeparsley Hieracium pilosella mouseear hawkweed Carduus nutans musk thistle, nodding thistle Ulex europaeus gorse, furze Hieracium sabaudum European hawkweed Carduus pycnocephalus Italian thistle Zygophyllum fabago Syrian bean-caper Impatiens glandulifera policeman's helmet LYTHRUM QUARANTINE Isatis tinctoria dyers' woad Carduus tenuiflorus slenderflower thistle WAC 16-752-400 – 415 It is prohibited to transport, buy, sell, offer for sale or to distribute Centaurea calcitrapa purple starthistle Kochia scoparia kochia, summer-cyprus, burning-bush, fireball, Mexican fireweed plants, plant parts or seeds of Lythrum salicaria or L. virgatum into or within the state of Washington. Also prohibited is transportation Centaurea diffusa diffuse knapweed Lepidium latifolium perennial pepperweed of wild plants or plant parts of these species in the state of Wash- ington. This includes hybrid crosses and named cultivars of L. Centaurea jacea brown knapweed, rayed knapweed, salicaria and L. virgatum. brown centaury horse-knobs, hard- Leucanthemum vulgare oxeye daisy, white daisy, whiteweed, heads field daisy, marguerite, poorland flower Scientific Name Common Name Centaurea jacea x nigra meadow knapweed Linaria dalmatica spp. Dalmatian toadflax Lythrum salicaria purple loosestrife dalmatica Lythrum virgatum wand loosestrife