t1 is made of/contains/is a quantity of tea brewed from honeybush leaves t2.
There are 23 or 24 species of honeybush tea found in the wild, of which mainly 4 or 5 are in widespread home or commercial use. These are: mountain tea, marshland tea/valley tea, coastal tea and Heidelberg-tee. See also honey bush (=sparciclop'ia).