The American Society of Pharmacognosy (ASP) is a scientific society that promotes the growth and development of pharmacognosy through presentation of research achievements and publication of meritorious research.

ASP was founded in 1959 as an outgrowth of the Plant Science Seminar established in 1923.

[1] Approximately 40 percent of the active members reside outside the U.S. and Canada in more than 60 countries.

Research problems in pharmacognosy include studies in the areas of phytochemistry, microbial chemistry, biosynthesis, biotransformation, chemotaxonomy and other biological and chemical sciences.

Ōmura is also a past recipient of the ASP Norman R. Farnsworth Research Achievement Award (2013) for his work on novel bacterial strains, such as Streptomyces avermitilis, and their bioactive constituents.