<prompt> Vitriolage can be done by which of the plant:Croton tigilumArbus precagtoriusBhilawanolCalotropes  <response>: Ans. c BhilawanolRef: The Essentials ofFSM by K.S. Narayan Reddy 31st ed. 517Semi carpus anacardium bhilawanol or marking nut: Juice applied to the skin produces irritation, painful blisters, followed by itching and eczematous eruption. Lesions formed resemble bruise which ulcerate and slough.Active principles: bilawanol and semicarpol Used by washermen as marking ink on clothes Used to produce artificial bruise Used as abortifacient by an abortion stick 