A large but colorful grove of small mushrooms and other tiny plants sprout upon a wide swath of moss.
A slime mold looks like a normal patch of fungus when at rest. It takes a DC 20 Perception check to notice it before it attacks. Anyone with ranks in Survival or Knowledge (nature) can use one of those skills instead of Perception to notice the ooze. Dwarves can use stonecunning to notice the subterranean version.
A slime mold can wrap a creature of up to one size smaller in its body as a standard action. If a slime mold succeeds a Combat Maneuver check to grapple an opponent, it establishes a hold and deals slam damage each round the hold is maintained. Attacks that hit an engulfing slime mold deal half their damage to the monster and half to the trapped victim.