Pencil Cactus
Euphorbia tirucalli
Dogs: Moderate
Cats: Moderate
Plant Information
Firestick Plant, Milk Bush, Euphorbia tirucalli
Euphorbiaceae
houseplant
Moderately Toxic
Toxicity Details
all parts (milky sap)
Diterpene esters (phorbol esters)
Immediate
moderate
Symptoms to Watch For
- Severe skin and eye irritation
- Oral blistering
- Vomiting
- Temporary blindness if sap contacts eyes
What to Do
Flush eyes immediately with water if sap contacts them. Wash skin thoroughly. See vet if oral exposure or eye damage suspected.
About Pencil Cactus
The milky latex sap of Pencil Cactus is extremely caustic. Eye exposure can cause temporary blindness. Despite being sold as a low-maintenance houseplant, it poses serious risks to pets (and humans) if the stems are broken.
Safe Alternatives
These plants provide a similar look but are non-toxic to pets: