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Is Coral Cactus Toxic to Cats?

☠️ ToxicSeverity: Moderate
✅ Cross-checked against veterinary poison-control guidance · Oct 2026 audit
⚠️ Educational info only. If your pet just chewed something and looks unwell, skip the reading and call your vet or Pet Poison Helpline (US): (855) 764-7661.
Yes, coral cactus is toxic to cats. It is not a true cactus — its white sap is a Euphorbia latex that burns the mouth, eyes and skin.

Also known as: Euphorbia lactea Crest, Crested Euphorbia, Elkhorn, Milkstripe Euphorbia · Euphorbia lactea f. cristata

What makes it toxic

Diterpene ester-rich milky latex (euphorbol and related compounds) in every part. The sap is caustic to mucous membranes, eyes and skin on contact.

Warning signs to watch for

Intense burning of the mouth, profuse drooling, vomiting, pawing at the face and swollen lips within minutes; eye exposure causes severe pain and redness.

What to do if your cat eats it

Rinse the mouth and any sap-exposed skin or eyes with clean water for several minutes. Call your vet promptly — eye involvement or persistent vomiting deserves an immediate visit.

Common questions

Is coral cactus worse than a true cactus for cats?

Yes. True cacti mainly prick; Euphorbia sap is chemically caustic and can blister. The wavy crest makes it look harmless, but the latex is genuinely nasty.

My cat broke a piece and sap got on her paw — what now?

Rinse the paw thoroughly before she grooms it, then check her mouth. Any drooling or facial rubbing after grooming means a vet call.

More plants checked for cats

Pothos☠️ ToxicYes, pothos is toxic to cats. Chewing the leaves or vines releases sharp calcium oxalate crystalAloe Vera⚠️ Mildly ToxicAloe vera is mildly to moderately toxic to cats. The gel is famously soothing for human skin, buSpider Plant✅ Non-ToxicNo, spider plants are non-toxic to cats. They are one of the best houseplants for homes with curEaster Lily☠️ ToxicYes — and this is one of the most dangerous plants a cat can meet. Every part of an Easter lily,Sago Palm☠️ ToxicYes — sago palm is severely toxic to cats and among the deadliest houseplants. Every part contaiBoston Fern✅ Non-ToxicNo, Boston ferns are non-toxic to cats — a classic choice for plant-loving cat households.

This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away. Checking what your pet can eat? Visit our sister site SafeOrToxic.