Scientific Name: Blechnum spicant
The Deer Fern could be eaten if you had no food and you were starving. Deer, elk, cattle eat it for winter food. The Deer Fern has green and light green leaves. There are no flowers on the Deer Fern. It lives in the forest.

Source:
Mathews, Daniel. Cascade-Olympic Natural History. Raven Editions,
1988.