I've definitely gotten Ambrosias, Scribe's pens, lucky coins, lucky silver coins, and tao stones from the nagnang shield quest areas.
Snow beat in Vale drops ice sabre occasionally, not a rarity.
Maletic in Arctic land also drops Military fork.
Woodland caves: I will have to pay attention to what's dropping it.
Heavy rock is missing from Woodland Raheem desert.
Trapped soul is missing from Woodland bear cave. Almost positive it is the bird.
Magical parchment is missing from Woodland rabbit cave.
Not sure, but I think there was something missing from Dog and lobster.