A list of poisonous plants is useless, as, for instance, in my neck of the woods, I will NEVER see a saguaro cactus in the wild. And, in Arizona, you probably wont run into too much poison ivy.
One thing to add would be the "rules of three"
3 minutes without oxygen
3 days without water
3 weeks without food.
Also, add the fire triangle to that. Heat+oxygen+fuel=combustion.
An example of a snow shelter & a debris shelter.
The psychological mindset of a survivor (this has proven, more often than not, that someone totally inept in the outdoor world can survive with a good mindset).
Thats all I got for now.