Many other plants are also known to produce cutaneous irritation in certain subjects; among these may be mentioned the nettle, primrose, cowhage, smartweed, balm of Gilead, oleander, and rue.    From Wordnik.com.  [Essentials of Diseases of the Skin Including the Syphilodermata Arranged in the Form of Questions and Answers Prepared Especially for Students of Medicine] Reference

The quantity of saliva may also be increased beyond what is natural, by the catenation of the motions of these glands with other motions, or sensations, as by an extraneous body in the ear; of which I have known an instance; or by the application of stizolobium, siliqua hirsuta, cowhage, to the seat of the parotis, as some writers have affirmed.    From Wordnik.com.  [Zoonomia, Vol. I Or, the Laws of Organic Life] Reference