AKEPIC

Conium maculatum L.
poison hemlock

Invasiveness rank: Not ranked
Reported from: Anchorage, Alaska

Elodea nuttallii (Planch.) H. St. John
western waterweed

Invasiveness rank: not ranked
Reported from: Fairbanks, Anchorage, and Cordova, Alaska

Heracleum mantegazzianum Sommier & Levier
giant hogweed

Invasivenessrank: 81
Reported from: Kake, Alaska

Lepidium latifolium L.
broadleaved pepperweed

Invasiveness rank: 71
Reported from: Anchorage, Alaska

Polygonum polystachyum Wall. ex Meisn.
Himalayan knotweed

Invasiveness rank: Not ranked
Reported from: Metlakatla, Alaska