Common Name | Scientific Name |
|---|---|
| Austrian fieldcress | Rorippa austriaca |
| blackgrass | Alopecurus myosuroides |
| blueweed, viper's bugloss | Echium vulgare |
| Brazilian elodea* | Egeria densa |
| bugloss, annual | Anchusa arvensis |
| bugloss, common | Anchusa officinalis |
| camelthorn | Alhagi maurorum |
| common reed (non-native genotypes) | Phragmites australis |
| Dalmatian toadflax | Linaria dalmatica ssp. dalmatica |
| fanwort | Cabomba caroliniana |
| gorse | Ulex europaeus |
| grass-leaved arrowhead | Sagittaria graminea |
| hawkweed, oxtongue | Picris hieracioides |
| hawkweed, mouseear | Hieracium pilosella |
| hawkweed, orange | Hieracium aurantiacum |
| hawkweed, polar | Hieracium atratum |
| hawkweed, queen-devil | Hieracium glomeratum |
| hawkweed, smooth | Hieracium laevigatum |
| hawkweed, yellow | Hieracium caespitosum |
| hoary alyssum | Berteroa incana |
| knapweed, black | Centaurea nigra |
| knapweed, brown | Centaurea jacea |
| knapweed, diffuse | Centaurea diffusa |
| knapweed, meadow | Centaurea jacea x nigra |
| knapweed, Russian | Acroptilon repens |
| knapweed, spotted | Centaurea stoebe |
| kochia | Kochia scoparia |
| lepyrodiclis | Lepyrodiclis holosteoides |
| longspine sandbur | Cenchrus longispinus |
| loosestrife, garden | Lysimachia vulgaris |
| loosestrife, purple | Lythrum salicaria |
| parrotfeather | Myriophyllum aquaticum |
| perennial pepperweed | Lepidium latifolium |
| perennial sowthistle | Sonchus arvensis |
| policeman's helmet | Impatiens glandulifera |
| rush skeletonweed | Chondrilla juncea |
| saltcedar | Tamarix ramosissima |
| spurge, leafy | Euphorbia esula |
| sulfur cinquefoil | Potentilla recta |
| swainsonpea | Sphaerophysa salsula |
| tansy ragwort | Senecio jacobaea |
| thistle, musk | Carduus nutans |
| thistle, plumeless | Carduus acanthoides |
| thistle, Scotch | Onopordum acanthium |
| water primrose | Ludwigia hexapetala |
| white bryony | Bryonia alba |
| wild chervil | Anthriscus sylvestris |
| yellow floating heart | Nymphoides peltata |
| yellow nutsedge | Cyperus esculentus |
| yellow starthistle | Centaurea solstitialis |
| *Brazilian elodea is designated for control throughout King County except in Lake Washington, Lake Sammamish, Lake Union and Lake Fenwick. | |