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A 2013 study in Pharmacognosy Reviews found that ambrein, a major ingredient in the Arab aphrodisiac Ambra grisea, "contains a tricyclic triterpene alcohol which increases the concentration of several anterior pituitary hormones and serum testosterone."

Li Shizhen’s “Compendium of Materia Medica,” or “Bencao gangmu,” first published in 1596, is a Chinese pharmacopoeia and the most celebrated book in the Chinese tradition of pharmacognosy, or the study of medicinal plants.

I am a professor emeritus who chaired the pharmacognosy department at Ole Miss for 15 years before retiring.

I clicked on researcher after researcher, ruling out one after another—one just because he didn’t list an e-mail or any contact information, another because she wrote articles filled with words I didn’t understand, words like pharmacognosy, methanolic, and eosin.

To dramatize a crusade which the State of Pennsylvania started last week against the hypnotic drug called marijuana,*Philadelphia's Temple University's professor of Pharmacognosy, James Clyde Munch, undertook to describe its effects to students.