Harvestables

The plants, mushrooms, fruits and ores that spawn in the overworld can be harvested with a Harvesting Tool or by a pet with the Gatherer ability.

If a player has Overworld PvP enabled, more resource nodes are visible.

Plants and Mushrooms
These resources are mostly used for potions. Most of these harvestables can also be acquired from Small and Large Reward Caches, except for Roto Spores, Crown Foil, Sydazoran, Blue Moon Spores and Red Truffles.

Ore
Ores are mostly used for artificing, and can't be harvested by pets.