Most common plant implicated in the causation of dermatitis is
Pahenium dermatitis is caused by dry powder of leaves and flowers and hair-like structures (trichomes). Sesquiterpene lactones (SQLs) are the most impoant allergens responsible for ACD to pahenium. Ref Harrison20th edition pg 1234
Dermatitis
Cotton fibres
Poison ivy
Pahenium grass
Ragweed
Pahenium grass