This is when a monster or character has a mouth that opens like a grotesque blooming flower, often with mandibles or other "petal"-like appendages opening up in different directions. Oftentimes, there may or may not be something resembling a Lamprey Mouth on the inside, but that's not always the case. When used, it is more often than not meant to resemble Vagina Dentata.
Not to be confused with having an actual flower for a mouth, nor about flowers with faces and mouths.
- Blade II: The "Reaper strain" vampires have a tongue which looks like this (buried inside a mouth with a lower jaw that splits in two), the end of which unfolds in multiple flaps with several smaller, rope-like tongues inside it.
- Blade: Trinity: The "vampire dogs" have a bottom jaw that splits into two halves.
- Krampus: Der Klown the jack-in-the-box has a bottom jaw that splits into two.
- The Thing (1982): The Dog-Thing first reveals itself as an alien beast in the kennel with the other dogs by opening its head like a flower before attacking them. In a more literal sense, it later tries to attack the humans by shooting out a flower made out of dog tongues lined with teeth.
- Tremors: The graboids and their subsequent forms have large beaks and side mandibles that make their open mouths resemble disgusting flowers. The African species has an even more prominent blossoming maw.
- Deep Rising: The gigantic octopoid monster has tentacles that function like this, being closed until they detect prey and split open like a blooming flower to reveal an additional two-jawed inner mouth.
- The Host: The mutant fish/amphibian monster has several pairs of beak-like and toothed mandibles surrounding numerous layers of fleshy lobes that can open very wide to swallow people whole.
- Stranger Things: The Demogorgon and the Demodogs have mouths that split open into multiple petal-like mandibles.
- Five Nights at Freddy's: Sister Location: Invoked with the Funtime animatronics. They were all built with their faces separated into segments that can move separately from each other. These shifting face plates can also split open all at once, revealing the creepy robotic face beneath. While In-Universe, this was done so the robots could be opened up for maintenance, out of universe, it makes for a terrifying Nightmare Face.
- Spore: The carnivorous mouth part "Dietrap" opens up like a blooming flower with plenty of teeth abound.
- Subnautica: The Mesmer has a mouth that splits open four ways to reveal four tentacle-like appendages lined with teeth that lead to its actual throat.
- Halo: The Gravemind is reminiscent of a giant flower, and its mouth is reminiscent of a flower's petals as well.
- The Sangheili have four petal-like mandibles lined with differing amounts of teeth, varying by game.
- Resident Evil 5: The Majini, due to being infected by the Type 2 or Type 3 Las Plaga parasite, has the parasite coming out from the mouth which splits like a flower, in which they use it for biting the others or taunting. There's also the Duvalia, a type of mutated Majini with the entire upper body replaced by a hard-shelled parasite that shapes like a gigantic flowery mouth.
- SCP Foundation: When SCP-929 ("The Cuckoo") engages in combat, its head splits open like a flower, releasing its Combat Tentacles.
- The pǟnalka of Sarvi have jaws that open along multiple axes.
- Epic Rap Battles of History: In The Joker vs Pennywise, there is an impressive special effect where Pennywise opens up his head like this. It's incredibly creepy.
- Ben 10: Ben's Blitzwolfer form has a snout that opens in four different directions.
- My Little Pony: Friendship Is Magic: In "Three's a Crowd", the characters are attacked by a Tatzlwurm, a gigantic worm-like creature with a three-lobed mouth. When it attacks, its entire head opens like a flower to reveal three yellow, spike-shaped fangs down the middle of each jaw and a trio of writhing, prehensile wormlike tongues sprouting from the center.
- The How to Train Your Dragon series introduces some dragon species that have a lower jaw that splits into two. The Snaptrapper specifically goes full on with the flower resemblance; its multiple heads lie still with their three lobed jaws open, luring in prey with a sweet smelling scent.
- If any real animal qualifies for this trope, it's the sarcastic fringehead. This fish does technically have two jaws, but its jawbones are "split" so that they flare out to the sides like petals when it opens its mouth.
- With some magnification via an Electron Microscope, Hydrothermal Vent Worms go from tiny, deep sea tube worms to monstrous, beaked, flower-mouthed sci-fi hellspawns. Google at your own risk.