Hops
Humulus lupulus

Like barley, hops gained fame from their use in brewing beer, but their herbal lore extends far beyond that — physicians in ancient Greece, Rome and China all prescribed hops as a digestive aid. Also, pillows stuffed with dried hops have long been recommended for peaceful slumber. Recent studies of hops have revealed an interesting contrast — as hops dry and age after being harvested, certain compounds lose strength while others actually get stronger. The polyphenolic principles that may help digestion fade quickly — only 15 percent of this activity remains just 9 months after harvesting. However, a compound called "2-methyl-3-butene-2-ol" becomes more concentrated as hops age — this compound is believed to support restful sleep. Educated herbalists now say dried hops support sleep, while fresh ones are more likely to soothe your stomach.

Commonly called: hops