i also think a lot of it depends on your zone...
but i did a quick google
Alaska Flowers | Flowers in Alaska Pictures | Photos of Flower of Alaska
earlier this year, i was in a huge seed swap and got a lot of seeds from gals in AK ... can't think of most of them off the top of my head [and since i'm out of town at the moment, i can't check my notes] but i know i got a lot of Columbine, some Violas and Poppies.
hope this helps a lil bit.