Wetland
and Aquatic Plants and Seeds Whose Sales are Prohibited in Washington
State
WAC 16-752-505
| Common Name | Scientific Name |
| African elodea | Lagarosiphon major |
| Brazilian elodea | Egeria densa |
| Cordgrass, common (marine/estuarine species) | Spartina anglica |
| Cordgrass, dense flowering (marine/estuarine) | Spartina densiflora |
| Cordgrass, salt meadow (marine/estuarine) | Spartina patens |
| Cordgrass, smooth (marine/estuarine species) | Spartina alternaflora |
| Eurasian watermilfoil | Myriophyllum spicatum |
| European frog-bit | Hydrocharis morsus-rana |
| Fanwort | Cabomba caroliniana |
| Flowering rush | Butomus umbelatus |
| Garden loosestrife | Lysimachia vulgaris |
| Grass-leaved arrowhead | Sagittaria graminea |
| Hairy willow herb | Epilobium hirsutum |
| Hydrilla | Hydrilla verticillata |
| Marsh dew flower, Asian spiderwort | Murdannia keisak |
| Mud mat | Glossostigma diandrum |
| Parrotfeather | Myriophyllum aquaticum |
| Purple loosestrife | Lythrum salicaria |
| Slender-leaved naiad, brittle naiad | Najas minor |
| Swollen bladderwort | Utricularia inflata |
| Wand loosestrife | Lythrum virgatum |
| Water chestnut, bull nut | Trapa natans |
| Water primrose | Ludwigia hexapetala |
| Yellow floating heart | Nymphoides peltata |
Copies of the plant quarantines may be obtained from:
Washington State Department of Agriculture
WSDA Plant Protection Division
Pest Management
P.O. Box 42560
Olympia, WA 98504-2560
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