Artemisia absinthium, more commonly known as wormwood, is part of the asteraceae family. Wormwood is a perennial and its yellow flowers bloom in the late summer.
Wormwood has a long medical history - its been valued for its tonic effect on the liver, gallbladder, and digestive system. However, it is perhaps best known as an ingredient in the spirit absinthe. Despite this, wormwood is toxic in large quantities and even small amounts have been known to cause insomnia and convulsions.