The known chemical allergens causing dermatitis were tuliposide-A and sesquiterpene lactones, such as alantolactones and parthenolide, in the Liliaceae and Compositae families.- Contact Dermatitis 1996 May;34(5):330-5 -- Occupational allergic contact dermatitis caused by decorative plants. -- Lamminpaa A, Estlander T, Jolanki R, Kanerva L.