Orthosiphon stamineus (Java tea)
Orthosiphon stamineus (Java tea) Cat's whiskers is a leaf that is commonly brewed as a tea for a variety of purposes, but said purposes (beyond just liking the taste of the tea) tend to revolve around treating inflammatory disorders or treating ailments of the urogenital tract. Cat's whiskers are harvested to use in herbal teas for treating kidney stones and other urinary ailments.
It originates from the oceanic region and was introduced to mainland Asian countries and the West sometime near the beginning of the 20th century.