Carrots thrive in the presence of caraway, coriander, chamomile, marigold and Swan River daisy. Infusions are hot water extracts of herbs, such as chamomile or mint, through steeping. Common examples include chamomile tea, or mint tea. Besides black and green tea, Chileans often store herbal infusions, such as chamomile and matico. The flowers exude a chamomile/pineapple aroma when crushed. One night, an Arab servant delivers Poirot his cup of chamomile tea. Matricaria is a genus of flowering plants in the Chamomile tribe within the sunflower family. A concerned Harvey offers her chamomile tea. The extract of "Matricaria recutita" (German chamomile) is taken as a strong tea. The main constituents of chamomile flowers are polyphenol compounds, including apigenin, quercetin, patuletin, and luteolin. Apigenin is particularly abundant in the flowers of chamomile plants, constituting 68% of total flavonoids. It is found naturally in the essential oil of chamomile. The flowers contain between 0.3 and 1.5% of essential chamomile oil. Chamomile, Azulene and other minerals are often added. MAA occurs naturally in small amounts in the oil of Roman chamomile.