What is "cytinus hypocistis"

Hypocist \Hyp"o*cist\, n. [Gr. ? a plant growing on the roots of the Cistus.] An astringent inspissated juice obtained from the fruit of a plant ( Cytinus hypocistis), growing from the roots of the Cistus, a small European shrub.

Cytinus hypocistis is an ant-pollinated species of parasitic plant in the family Cytinaceae having four subspecies. It is found primarily in locations that surround the Mediterranean Sea, and is the type for the genus Cytinus. The binomial has been conserved.