PEAS ON EARTH, WK 2: PLANTS/FLOWERS

For this post, I tried to think of flora native to the Pacific NW. I posted some ferns, including this one:
This might even be exclusive to the PNW, but I'm not sure. Skunk Cabbage grows only in the wet, shadowy parts of a forest. No, skunk don't eat it, but it smells like those creatures!
I have heard that hazelnuts grow only in the PNW and Sweden: (again, I am not sure)
Shelf Lichen can grow to be large enough to sit on, and is very, very hard: