Umbilicus luteus
Umbilicus luteus, the reniform Venus' navel, is a succulent, perennial flowering plant in the family Crassulaceae, in the genus Umbilicus, found in the Southern Balkans and southern Italy.
Umbilicus luteus leaf extract had a highly virucidal effect to Acyclovir resistant Herpes [Simplex Virus] Type 1 in vitro