Chamomile is a common name for a variety of herbs in the daisy family (astercae). Many subspecies are used, but the most common is Matricaria chamomilla, German chamomile or wild chamomile. Another frequently used species is Chamaemelum nobile, Roman, English or garden chamomile. Often these two are used interchangeably as a mild sedative or nervative. Chamomile is most often prepared as an infusion, or tea.