What specific substance within Alocasia plants causes the primary toxicity when ingested?

Answer

Insoluble calcium oxalate crystals

These plants contain microscopic, needle-like structures known as insoluble calcium oxalate crystals. These structures function as a defensive mechanism by physically embedding themselves into soft tissues when the plant is chewed. The mechanical puncture caused by these crystals triggers immediate irritation and inflammation in the mouth, tongue, and throat, which is the root cause of the toxic reaction rather than a chemical poison in the traditional sense.

What specific substance within Alocasia plants causes the primary toxicity when ingested?
planttoxichumanAlocasia