Definition of "herbal"

Athletes' use of herbal supplements has skyrocketed in the past two decades. At the top of the list of popular herbs are echinacea and ginseng, whereas garlic, St. John's wort, soybean, ephedra and others are also surging in popularity or have been historically prevalent.

2013 March, David S. Senchina, “Athletics and Herbal Supplements”, in American Scientist‎, volume 101, number 2, archived from the original on 16 May 2013, page 134

It can still be found in herbals and such, which describe it as a sedative and cough suppressant.

2005 January 7, Cecil Adams, “The Straight Dope”, in Chicago Reader‎

I took a ride to the shopping strip at Belmont and Central and stocked up on herbals at three Polish New Age health stores.

2003 March 7, Jeffrey Felshman, “The Killer Inside Me”, in Chicago Reader‎