Shady with wet feet?

I have a few locations in my yard that are shady and more often than not damp to soggy (edge of yard by "lake" with very large cypress trees, and northern side of house under water spigot). What are recommendations for planting in these areas? The ones by north side of house would occasionally get a beating from the roofs watershed, so I am thinking maybe bushes for that spot, although wild strawberries do spring up there on occasion.

Purple flowering raspberry (thimbleberry), elderberry (might not produce much), ostrich fern, you could also put mushroom logs there.

Taro (elephant ear) would be a good choice. I have some on the northwest side of the house and they only get afternoon sun and they are doing well. This year I didn't have to plant any at all, what I have are corms from last season that overwintered and sprouted this spring.