There is a kind of tea with small, oval leaves and sweet taste. What kind of tea is this?

The leaves are small, oval and sweet to drink. Abrus cantoniensis, scientific name of traditional Chinese medicine. It is the dried whole grass of Acacia Guangzhou in Leguminosae. Sweet, slightly bitter, cool. Eliminating dampness and jaundice, clearing away heat and toxic materials, soothing the liver and relieving pain. Commonly used for damp-heat jaundice, hypochondriac discomfort, epigastric pain, breast abscess swelling and pain. Abrus cantoniensis can also be used for cooking soup and dietotherapy in rainy seasons in spring and summer. I have been waiting for this answer for 10 years, thank you!