(covers information from an alternate timeline)
Chamomile tea, a Human beverage, was a tea made from the flower of the chamomile plant found on Earth native to Egypt. Noted for its calming properties, it was often considered a sleeping aid in many Terran cultures.
During the 22nd century, Sub-Commander T'Pol occasionally enjoyed a cup of chamomile tea. (ENT: "Fusion") Two versions of T'Pol, one of whom was from an alternate timeline, even once shared some chamomile tea with each other. (ENT: "E²")