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Plants and Seeds Whose Sales Are Prohibited In WETLAND AND AQUATICS WETLAND AND AQUATICS WAC 16-752-505 WAC 16-752-505 continued It is prohibited to transport, buy, sell, offer for sale, or to distribute plants or plant parts of these regulated plants, Sagittaria platyphylla delta arrowhead PLANTS AND into or within the state of Washington. It is further prohib- ited to intentionally transplant wild plants and/or plant parts Schoenoplectus mucronatus ricefield bulrush SEEDS WHOSE of these species within the state of Washington. Spartina alterniflora smooth cordgrass SALES ARE Scientific Name Common Name Spartina anglica common cordgrass Butomus umbellatus flowering rush Spartina densiflora dense-flowered cordgrass PROHIBITED IN Cabomba caroliniana fanwort Spartina patens salt meadow cordgrass WASHINGTON Crassula helmsii Australian swamp stonecrop Stratiotes aloides water soldier STATE Egeria densa Brazilian elodea Trapa natans water chestnut, bull nut water caltrap, devil's pod, bat Epilobium hirsutum hairy willow herb Trapa bicornus nut A Summary of Current Glossostigma diandrum mud mat Utricularia inflata swollen bladderwort Regulations on Sales of Noxious Glyceria maxima reed sweetgrass, tall manna Weeds and Other Invasive grass Please Note: This prohibited plant list comprises the most recent and accepted scientific and common names of the prohibited plant spe- Exotic Plants cies in Washington State. However, the prohibited status also Hydrilla verticillata hydrilla applies to any and all synonyms. Hydrocharis morsus-ranae European frog-bit WHERE CAN I OBTAIN A COPY OF THE RULES? Lagarosiphon major African elodea WHERE CAN I OBTAIN A COPY OF THE RULES? Ludwigia hexapetala water primrose Copies of the quarantines may be obtained from: Ludwigia peploides floating primrose-willow Washington State Department of Agriculture Plant Protection Division Lysimachia vulgaris garden loosestrife P. O. Box 42560 Lythrum salicaria purple loosestrife Olympia, WA 98504-2560 Lythrum virgatum wand loosestrife For more information contact: WAC 16-752-400 through 420 Murdannia keisak marsh dew flower, Asian spider- Plant Services Program WAC 16-752-500 through 525 wort (360) 902-1874 WAC 16-752-600 through 660 Myriophyllum aquaticum parrotfeather [email protected] Myriophyllum heterophyllum variable-leaf milfoil WSDA Weed Specialist - Yakima Office Myriophyllum spicatum Eurasian watermilfoil (509) 249-6973 Washington State Najas minor slender-leaved naiad, brittle Washington State Noxious Weed Control Board Department of Agriculture naiad (360) 902-2053 Plant Protection Division Nymphoides peltata yellow floating heart Plant Services Program Inquiries regarding availability of this publication in alternative formats Revised September 2011 Sagittaria graminea grass-leaved arrowhead should be directed to the WSDA Information Office at (360) 902-1813 or Telecommunications Device for the Deaf (360) 902-1996 WHY ARE SALES PROHIBITED? Centaurea jacea brown knapweed, rayed knapweed, Lepidium latifolium perennial pepperweed brown centaury, horse-knobs, hard- Every year noxious weeds and other invasive exotic heads Leucanthemum vulgare ox-eye daisy, white daisy, plants cost Washington millions of dollars in lost produc- whiteweed, field daisy, marguerite, tion, public and private control costs, and environmental Centaurea jacea x nigra meadow knapweed poorland flower degradation. These exotic introductions to Washington Centaurea biebersteinii spotted knapweed have displaced native plant communities, damaged range Linaria dalmatica spp. Dalmatian toadflax dalmatica and recreational lands, and degraded fragile wetlands. Centaurea macrocephala bighead knapweed Escaped ornamentals are one significant source of infes- tation. It is often difficult to predict which ornamentals will Centaurea nigra black knapweed Mirabilis nyctaginea wild four o'clock, umbrella-wort be invasive and aggressive. Scotch broom, purple loose- strife, and kochia are prime examples of plants which Centaurea nigrescens Vochin knapweed Onopordum acanthium Scotch thistle have escaped cultivation and caused enormous eco- Chaenorrhinum minus dwarf snapdragon Polygonum cuspidatum Japanese knotweed nomic and environmental damage. The quarantines identify plants known to be invasive and a detriment to Crupina vulgaris common crupina Polygonum Himalayan knotweed the state's natural resources. These regulations will polystachyum serve to prevent the continued introduction of these prob- Cytisus scoparius Scotch broom lem plants into Washington. Polygonum sachalin- giant knotweed Daucus carota wild carrot, Queen Anne's lace ense WHICH PLANTS AND SEEDS ARE PROHIBITED? Echium vulgare blueweed, blue thistle, blue devil, viper's Polygonum x bo- Bohemian knotweed, Japanese and bugloss, snake flower hemicum giant knotweed hybrid Terrestrial Noxious Weed Seed and Euphorbia esula leafy spurge Proboscidea louisianica unicorn-plant Plant Quarantine WAC 16-752-610 Euphorbia oblongata eggleaf spurge Pueraria montana var. kudzu lobata It is prohibited to transport, buy, sell or offer for sale, or Galega officinalis goatsrue distribute all plants or plant parts, seeds in packets, blends Salvia aethiopis Mediterranean sage or "wildflower mixes" of these regulated species: Geranium lucidum shiny geranium Salvia pratensis meadow clary Helianthus ciliaris Texas blueweed Scientific Name Common Names Salvia sclarea clary sage Heracleum giant hogweed, giant cow parsnip Abutilon theophrasti velvetleaf mantegazzianum Senecio jacobaea tansy ragwort Alliaria petiolata garlic mustard Hibiscus trionum Venice mallow, flower-of-an-hour, blad- Silybum marianum milk thistle der ketmia, modesty, shoo-fly Amorpha fruticosa indigobush, lead plant Hieracium aurantiacum orange hawkweed, orange paintbrush, Solanum elaeagnifolium silverleaf nightshade Anchusa officinalis common bugloss, alkanet, anchusa red daisy flameweed, devil's weed, grim- the-collier Solanum rostratum buffaloburr Anthriscus sylvestris wild chervil Hieracium caespitosum yellow hawkweed, yellow paintbrush, Soliva sessilis lawnweed Brachypodium sylvati- false brome devil's paintbrush, yellow devil, field cum hawkweed, king devil Sorghum halepense johnsongrass Carduus acanthoides plumeless thistle Hieracium floribundum yellow devil hawkweed Spartium junceum Spanish broom Carduus nutans musk thistle, nodding thistle Hieracium pilosella mouse ear hawkweed Tamarix ramosissima saltcedar Carduus pycnocephalus Italian thistle Hieracium sabaudum European hawkweed Thymelaea passerina spurge flax Carduus tenuiflorus slenderflower thistle Impatiens glandulifera policeman's helmet, Himalayan balsam Torilis arvensis hedgeparsley Isatis tinctoria dyers' woad Centaurea calcitrapa purple star thistle Ulex europaeus gorse, furze Kochia scoparia kochia, summer-cyprus, burning-bush, Centaurea diffusa diffuse knapweed fireball, Mexican fireweed Zygophyllum fabago Syrian bean-caper .
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