The only resources I've found about this are on the Oregon Fish and Wildlife subsite on Oregon.gov.
This is like the "short list".
Algae, toxic (golden, toxic cyanobacteria)
Prymnesium parvum, Cylindrospermopsis raciborskii
Asian kelp
Undaria pinnatifida
Caulerpa seaweed
Caulerpa taxifolia
Common reed
Phragmites australis
Cordgrasses
Spartina alterniflora* , S. densiflora , S. anglica, S. patens**
Dead man's fingers
Codium fragile tomentosoides
European water chestnut
Trapa natans
Flowering rush
Butomus umbellatus
Giant salvinia
Salvinia molesta
Hydrilla
Hydrilla verticillata
Rock snot
Didymosphenia geminate
Yellow floating heart
Nymphoides peltata**