Yarrowstalks was an underground newspaper, primarily based in Philadelphia, Pennsylvania, that published 12 issues from 1967 to 1975. It is notable for being the first publication to publish the comix of underground cartoonist Robert Crumb. In addition to Crumb, other notable contributors to Yarrowstalks included Timothy Leary and the editor/publisher Brian Zahn.

Robert Dennis Crumb is an American cartoonist who often signs his work R. Crumb. His work displays a nostalgia for American folk culture of the late 19th and early 20th centuries, and satire of contemporary American culture.