Oregon-Ahorn
The plant prefers moist environments, so it is typically found on wet ground, rocks, and logs. Occasionally it can be seen on fallen trees. It is particularly associated with bigleaf maple ("Acer macrophyllum"). The fern is mycorrhizal, meaning it can form root associations with the hyphae of fungi. It takes advantage of the mild, wet winters and the substrate of deciduous trees to photosynthesize and grow during the cold season when most other temperate plants are dormant. Habitat elevation is lowlands below 600 meters.