yerba santa
noun
yerba san·ta
| \ -ˈsän-tə
, -ˈsan-
\
, -ˈsan-
\
Medical Definition of yerba santa
: an evergreen shrub of the genus Eriodictyon (E. californicum) of California whose aromatic dried leaves are used as an expectorant and to mask the bitter taste of various drugs
also
: eriodictyon sense 2