The genus Euphorbia (spurge) contains over 1600 species making it one of the most species-rich plant genus in the world.
The common characteristic of all these species is that they contain poisonous, milky latex-like sap that tastes strong and bitter.
Since it is the sap that has been used medicinally, these species are interchangeable.
Sun spurge and other species belonging the genus Euphorbia contain a white latex-like sap with several active ingredients, including the poisonous substance euphorbon and some very strong irritants.
The toxic sap is found in all parts of the plant, and the toxic effect is not diminished by drying.
A Remedy for Warts
Throughout the ages, the milky sap latex of plants belonging to the spurge family has been regarded as an effective remedy against warts (including verrucas).
It has also been used to treat corns and ringworms.
If the sap latex is used as a natural treatment for warts it must be applied with care so it does not come into contact with the surrounding skin.