Hmm. I just got back from Anchorage after a two week trip. There are huge 
areas of wetlands all the way from Homer to Fairbanks. I was unable to get 
out and do any close inspections of the plant life. From the road and train 
most of the wetlands were still brown and only showed evidence of grasses. 
You should also be aware that in-between Anchorage and Fairbanks there is 
still frozen lakes and cold weather. As you near Fairbanks it would be 
extremely wise to put on a good bug spray, as the misquitos are out in full 
force already. If you do find any let me know. I suspect they are probably 
closer to Juneau were the temperatures don't drop to -20 to -40 F.