Rare Mushrooms are found in swamp biomes and near beaver dams. They're used in recipes and crafting specific kibbles.
Node yields assume the base harvest HP from game data (e.g. 1000 for Redwood trees, 620 for Metal nodes). In-game, trees and rocks with bAllowHarvestHealthScalinghave per-instance HP that varies with the node's size, so actual yields per node will vary. The values shown represent the average.
74,329 harvestable nodes across 28 maps · 59 node types

MushroomA

PurpleMat

MushroomB

Crystal3

Dark Crystal A

MediumEmissive Fungus SM

Mangrove

Crystal3

JimsonWeed

PondCypress Dead SM

DryGrass 03

GlowShrooms 01 Blue
✋ Can also be picked by hand from small swamp plants
The Doedicurus is the best Rare Mushroom farmer with a 21x gather multiplier from game data. The Dreadnoughtus is the runner-up with 10x.