Which is a type of shrub, Cissus or Colletia?
Colletia Colletia is a genus of flowering plants in the family Rhamnaceae, with 15 to 17 species of spiny shrubs. All species of this genus are native to southern South America. They are non-legume nitrogen fixers.
Ruscus hypoglossum Ruscus hypoglossum is a small evergreen shrub with a native range from Italy north to Austria and Slovakia and east to Turkey and Crimea. Common names include spineless butcher's-broom, mouse thorn and horse tongue lily. The laurel crown of Caesar was made of "Ruscus hypoglossum". The species name comes from two Greek words "hypo" and "glossus" meaning "under" and "tongue".