Cystoliths

[brwagur]

This might belong in the botany forum but...
What is the function of the cystoliths in a plant's leaves. I know that they are crystals of some calcium compound, but what is their purpose.

[Poison]

they are storage. Plant stores them in sac like structure to avoid being harmed by the substance. At least that's what they said to us in our first year.