Like any survival crafting adventure, Windrose has a ton of new materials and recipes to unlock upon reaching a new area. There are three distinct biomes in the early access build, each with their own Discovery section in your character menu, and a few items from every region can be a bit of a pain to find.
That's why I've gone ahead and found them all for you, then compiled them into this nice Windrose Discovery list below. I've sorted them each by region, plus noted any boss and questing requirements you'll need to complete to proceed.
English (US)