IntroductionA detailed review of mechanical irri-.tams, stinging nettles, phototoxic compounds and contact allergens causing dermatitis in men is presented. The producing ~l a n t s and their dermatitis causing constituents are listed. The chemical structures and the botanical sources of I primary irritants are also discussed.The production of dermatitis by contact is a highly effective defence mechanism exhibited by many plants, and poses a clinical problem both for the physician and the veterinary surgeon. Dermatitis can result from contact with living, damaged, or processed plant materials, and may manifest itself in the patient at This document was downloaded for personal use only. Unauthorized distribution is strictly prohibited.