Really vague list in that wikipedia link. Did you check out any of the sources?
https://web.archive.org/web/20070813015442/http://www.itk.ca/environment/wildlife-index.php
Gathering from the Shore
On the tidal flats and rocky shorelines, Inuit gathered seaweed and shellfish. For some, these foods were a treat; for others, their consumption was a sign that the men were out hunting and there was no meat in camp.
Uqalurait
Women gathered the food from the land, such as berries. The women prepared them for the men and other members of the families. And those women that did not have providers often provided for themselves from the land.
When somebody is really hungry, when there is nothing to eat, the plants make you survive a little longer without meat. This has happened to Inuit, it has happened to me. The plants can make you last longer without food, even without real meat.
So, check those sources. It’s very telling. This last guy didn’t refer to plants as food.