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From Pathfinder Society Scenario #5-14: Poisonous Council, which isn't enabled.

Tough Titanic Flytrap

HAZARD 5
Stealth +16 (trained)
Description On the surface, a titanic flytrap appears to be a patch of the more common flytrap plant, but beneath murky waters it hides a far larger set of jaws, reaching 10 feet across and reinforced with woody branches and lined with paralytic hairs.

Disable DC 24 Survival (trained) to mislead the flytrap's sense of weight and pressure

AC 22; Fort +17, Ref +9
HP 50 (BT 25); Immunities mental; Resistances acid 20, fire 10

Snap Shut
Trigger A Small or Medium creature moves into a square that is within reach of the flytrap's hidden jaws

Effect The flytrap's jaws snap shut, making a jaws Strike against the triggering creature.
Devour

The target is trapped by the flytrap's jaws, gaining the Grabbed condition until it Escapes. Additionally, it is exposed to the titanic flytrap toxin from the hundreds of tiny hairs that line the inside of its leaves. If the flytrap's jaws Strike was a critical success, the target takes a –2 circumstance penalty to its saving throws against this poison. At the end of each of target's turns that it remains grabbed, the target takes 3d8 acid damage.

Titanic Flytrap Toxin (contact, poison)
Saving Throw DC 23 Fortitude
Maximum Duration 4 rounds
Stage 1 2d4 poison damage and Stunned 1 (1 round)
Stage 2 2d8 poison damage and Stunned 2 (1 round)
Stage 3 2d10 poison damage and Paralyzed (1 round)
Melee Jaws +18, Damage plus Devour
Reset 1 hour (or longer, after a large meal)
Pathfinder Society Scenario #5-14: Poisonous CouncilOGL