ROS meaning in General ?

Rose of Sharon is a common name that has been applied to several different species of flowering plants that are valued in different parts of the world. It is also a biblical expression, though the identity of the plant referred to is unclear and is disputed among biblical scholars. In neither case does it refer to actual roses, although one of the species it refers to in modern usage is a member of Rosaceae. The deciduous flowering shrub known as the rose of Sharon is a member of the mallow family which is distinct from the family Rosaceae. The name's colloquial application has been used as an example of the lack of precision of common names, which can potentially cause confusion. "Rose of Sharon" has become a frequently used catch phrase in poetry and lyrics.