Library/Araceae/Anthurium/Scherzerianum
Last reviewed ·

Anthurium

Anthurium scherzerianum

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The verdict
Toxic — glossy spathe, oxalate sting

Yes — anthurium is toxic to cats. The ASPCA lists it (as flamingo flower) as toxic, citing insoluble calcium oxalates. Chewing causes immediate mouth pain, swelling, and drooling.

Botanical plate — Anthurium with a glossy red heart-shaped spathe and upright spadix
⚠ Toxic to cats
10 cm

Plate IAnthurium scherzerianum — flamingo flower. The lacquered red spathe is an aroid, armed with the same oxalate crystals as its relatives.

§ I · Safe lookalikes

Three plants that look the part, without the risk.

Bold, glossy colour without the oxalate sting — all ASPCA non-toxic.

Bromeliad
◦ Cat safe

Bromeliad

Bromeliaceae

Lacquered, long-lasting colour with the same tropical drama. Safe for cats.

From £18
Buy on Amazon
Orchid
◦ Cat safe

Orchid

Phalaenopsis spp.

Sculptural, glossy blooms for a tabletop, entirely cat-safe.

From £24
Buy on Amazon
Christmas Cactus
◦ Cat safe

Christmas Cactus

Schlumbergera spp.

Bright, waxy seasonal flowers on a forgiving plant. ASPCA non-toxic.

From £18
Buy on Amazon
At a glance
Toxicity
Moderatecalcium oxalates
Onset
Minutesburning, swelling
All parts
Toxicleaves, spathe, stem
Family
Araceaelike peace lily
Also called
Flamingo flowertail flower, pigtail

What it does to a cat.

Yes — anthurium is toxic to cats. The ASPCA lists it under the name flamingo flower as toxic, the cause being insoluble calcium oxalate crystals. Chewing fires these needle-like raphides into the mouth and lips, producing immediate pain, swelling of the tongue and lips, drooling, and vomiting.

Anthurium's signature is that glossy, almost plastic-looking red or pink spathe — a clue to its identity, because the lacquered look is shared across the arum family. All parts of the plant carry the toxin, not just the showy flower.

The aroid family again

Anthurium sits alongside peace lily, calla lily, and dieffenbachia as a calcium-oxalate aroid. The pattern is consistent: a sore, swollen mouth that comes on fast and usually resolves within hours, with rare airway swelling as the one emergency to watch for.

Safe swaps

For the same bold, glossy tropical colour, a bromeliad is the closest cat-safe match; orchid and Christmas cactus also bring lasting colour and are ASPCA non-toxic.

The anthurium's shine is the giveaway — that lacquered red spathe belongs to the arum family, and the arum family does not forgive a curious mouth.
§ II · Observed effects

What we have actually seen.

Obs. 01

Oral pain & swelling

Raphide crystals fire into the mouth and lips on chewing — pain, swelling of the tongue and lips, and drooling within minutes.

◦ Near universal
Obs. 02

Vomiting

Common after the oral irritation; usually self-limiting once the plant is removed.

◦ Common
Obs. 03

Difficulty swallowing

A swollen, painful mouth can make eating and swallowing difficult for a day.

◦ Occasional
Obs. 04

Airway swelling

Rare but serious — pronounced swelling can affect breathing and needs emergency care.

◦ Rare · emergency
§ V · Sources & references
  1. Pet Poison Helpline. Anthurium / Insoluble Oxalates.Reference list · 2024 ed.
cat safe plants · Pl. XXXVIII
— if in doubt, look it up —
May 2026