Regulated articles.
All plants, plant parts, and seeds in packets, blends, and "wildflower mixes" of the following listed species are designated as regulated articles under the terms of this noxious weed seed and plant quarantine. This list is comprised of the most recent and accepted scientific and common names of the quarantine plant species. Regulated status also applies to all synonyms of these botanical names and interspecies hybrids if both parents are regulated species:
Scientific Name | Common Names |
Abutilon theophrasti | velvetleaf |
Ailanthus altissima | tree-of-heaven |
Alliaria petiolata | garlic mustard |
Amorpha fruticosa | indigobush, lead plant |
Anchusa officinalis | common bugloss, alkanet, anchusa |
Anthriscus sylvestris | wild chervil |
Arum italicum | Italian arum |
Arundo donax (except variegated cultivars) | giant reed |
Bassia scoparia (syn. Kochia scoparia) | kochia, summer-cyprus, burning-bush, fireball, Mexican fireweed |
Berteroa incana | hoary alyssum |
Brachypodium sylvaticum | false brome |
Buddleia davidii (except accepted sterile cultivars) | butterfly bush |
Butomus umbellatus | flowering rush |
Cabomba caroliniana | fanwort |
Carduus acanthoides | plumeless thistle |
Carduus nutans | musk thistle, nodding thistle |
Carduus pycnocephalus | Italian thistle |
Carduus tenuiflorus | slenderflower thistle |
Centaurea calcitrapa | purple starthistle |
Centaurea diffusa | diffuse knapweed |
Centaurea jacea | brown knapweed, rayed knapweed, brown centaury horse-knobs, hardheads |
Centaurea macrocephala | bighead knapweed |
Centaurea nigra | black knapweed |
Centaurea nigrescens | Vochin knapweed |
Centaurea stoebe | spotted knapweed |
Centaurea x gerstlaueri (syn. Centaurea jacea x nigra) | meadow knapweed |
Chaenorhinum minus | dwarf snapdragon |
Clematis orientalis | oriental clematis |
Conium maculatum | poison hemlock |
Crassula helmsii | Australian swamp stonecrop |
Crupina vulgaris | common crupina |
Cyperus rotundus | purple nutsedge |
Cytisus scoparius | Scotch broom |
Daphne laureola | spurge laurel |
Daucus carota | wild carrot, Queen Anne's lace |
Echium vulgare | blueweed, blue thistle, blue devil, viper's bugloss, snake flower |
Egeria densa | Brazilian elodea |
Epilobium hirsutum | hairy willow herb |
Euphorbia myrsinites | myrtle spurge |
Euphorbia oblongata | eggleaf spurge |
Euphorbia virgate (syn. Euphorbia esula) | leafy spurge |
Fallopia japonica | Japanese knotweed |
Fallopia sachalinensis | giant knotweed |
Fallopia x bohemica | Bohemian knotweed |
Ficaria verna | lesser celandine |
Galega officinalis | goatsrue |
Genista monspessulana | French broom |
Geranium lucidum | shiny geranium |
Glossostigma diandrum | mud mat |
Glyceria maxima | reed sweetgrass, tall manna grass |
Gymnocoronis spilanthoides | Senegal tea plant |
Helianthus ciliaris | Texas blueweed |
Heracleum mantegazzianum | giant hogweed, giant cow parsnip |
Hibiscus trionum | Venice mallow, flower-of-an-hour, bladder ketmia, modesty, shoo-fly |
Hieracium spp. All nonnative species and hybrids | nonnative hawkweeds |
Hydrilla verticillata | hydrilla |
Hydrocharis morsus-ranae | European frog-bit |
Impatiens glandulifera | policeman's helmet |
Impatiens parviflora | small-flowered jewelweed |
Iris pseudacorus | yellow flag iris |
Isatis tinctoria | dyers' woad |
Jacobaea vulgaris (syn. Senecio jacobaea) | tansy ragwort |
Lagarosiphon major | African elodea |
Lamiastrum galeobdolon | yellow archangel |
Lepidium latifolium | perennial pepperweed |
Leucanthemum vulgare | oxeye daisy, white daisy, whiteweed, field daisy, marguerite, poorland flower |
Limnobium laevigatum | South American spongeplant |
Limnobium spongia | American spongeplant |
Linaria dalmatica spp. dalmatica | Dalmatian toadflax |
Ludwigia hexapetala | water primrose |
Ludwigia peploides | floating primrose-willow |
Lycopsis arvensis | annual bugloss |
Lysimachia vulgaris | garden loosestrife |
Lythrum salicaria | purple loosestrife |
Lythrum virgatum | wand loosestrife |
Marsilea mutica | Australian water clover |
Mirabilis nyctaginea | wild four o'clock, umbrella-wort |
Murdannia keisak | marsh dew flower, Asian spiderwort |
Myriophyllum aquaticum | parrotfeather |
Myriophyllum heterophyllum | variable-leaf milfoil |
Myriophyllum spicatum | Eurasian watermilfoil |
Najas minor | slender-leaved naiad, brittle naiad |
Nymphoides peltata | yellow floating heart |
Onopordum acanthium | Scotch thistle |
Persicaria wallichii (syn. Polygonum polystachyum) | Himalayan knotweed |
Proboscidea louisianica | unicorn-plant |
Pueraria montana var. lobata | kudzu |
Sagittaria graminea | grass-leaved arrowhead |
Sagittaria platyphylla | delta arrowhead |
Salvia aethiopis | Mediterranean sage |
Salvia pratensis | meadow clary |
Salvia sclarea | clary sage |
Schoenoplectus mucronatus | ricefield bulrush |
Silybum marianum | milk thistle |
Solanum elaeagnifolium | silverleaf nightshade |
Solanum rostratum | buffaloburr |
Soliva sessilis | lawnweed |
Sorghum halepense | johnsongrass |
Spartina alterniflora | smooth cordgrass |
Spartina anglica | common cordgrass |
Spartina densiflora | dense-flowered cordgrass |
Spartina patens | salt meadow cordgrass |
Spartium junceum | Spanish broom |
Stratiotes aloides | water soldier |
Tamarix ramosissima | saltcedar |
Thymelaea passerina | spurge flax |
Torilis arvensis | hedgeparsley |
Trapa natans | water chestnut, bull nut |
Trapa bicornus | water caltrap, devil's pod, bat nut |
Tripidium ravennae | Ravenna grass |
Ulex europaeus | gorse, furze |
Utricularia inflata | swollen bladderwort |
Zygophyllum fabago | Syrian bean-caper |
[Statutory Authority: RCW
17.10.074,
17.24.011, and
17.24.041. WSR 21-05-019, § 16-752-610, filed 2/8/21, effective 3/11/21. Statutory Authority: RCW
17.10.074,
17.24.011,
17.24.041, and chapter
34.05 RCW. WSR 16-14-003, § 16-752-610, filed 6/23/16, effective 7/24/16; WSR 14-07-040, § 16-752-610, filed 3/12/14, effective 4/12/14. Statutory Authority: Chapters
17.10, 17.24, and
34.05 RCW. WSR 09-19-006, § 16-752-610, filed 9/3/09, effective 10/4/09; WSR 04-19-004, § 16-752-610, filed 9/2/04, effective 10/3/04. Statutory Authority: Chapters
17.24, 17.10,
15.13 RCW. WSR 02-12-030, § 16-752-610, filed 5/29/02, effective 6/29/02. Statutory Authority: Chapters
17.24,
17.10 RCW. WSR 00-24-021, § 16-752-610, filed 11/28/00, effective 12/29/00; WSR 98-13-008, § 16-752-610, filed 6/4/98, effective 7/5/98. Statutory Authority: Chapters
17.10 and
17.24 RCW. WSR 92-07-025, § 16-752-610, filed 3/10/92, effective 4/10/92.]
