Matricaria.
Matricaria chamomilla, German chamomile, is the cultivated form of Chrysanthemum parthenium (No - they're quite distinct species. -Henriette), being cultivated for domestic use, in which it is distinguished from the Anthemis nobilis, or Roman chamomile. It has been in domestic use so long as to have made it familiar to all German housewives, and considerable demand has been created for it in sections of America where Germans have settled. It is a home remedy of antiquity.
The History of the Vegetable Drugs of the U.S.P., 1911, was written by John Uri Lloyd.