Letters to the editor

Abstract

Extract

Sir;– Plants of the fsmilyUmbelliferae including parsnip, parsley and celery, contain furocoumarins in their leaves. Furocumarins on the skin become activated by light of wavelengths 440-334 nm and the resulting energy release causes cell damage.(1)Medical practitioners in horticultural area like Levin are familiar with the condition in people who handle parsnips. It is known as phytophotodermatitis or percutaneous photosensitization.