The scientific classification of Rhubarb and Sun Star includes the entire classification chart that includes kingdom, family, clade, tribe etc. A kingdom is the second highest taxonomic rank. A taxonomic rank is the level that a living organisms are placed in hierarchical level of arrangement of life forms. All the living organisms are divided into kingdoms. Plant kingdom is a main classification of living organisms that include all plants. There are six kingdoms which are: Plantae, Animalia, Fungi, Protista, Aschaea/Archaeabacteria and Bacteria Eubacteria. Rhubarb and Sun Star kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Rhubarb and Sun Star family is a major factor of Rhubarb and Sun Star Scientific Classification. Plant family helps you narrow the search of your plants. It also gives you idea about, how the plant looks, how the seed will be like etc. These two plant families can be different or same. Rhubarb belongs to the family Polygonaceae and Sun Star belongs to the family Asparagaceae.
While comparing scientific classification, Rhubarb and Sun Star genus and other classification are also important. Also, when you compare Rhubarb and Sun Star, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Rheum and other plant's genus is Ornithogalum. Rhubarb tribe is Not Available and Sun Star tribe is Ornithogaleae. Rhubarb clade is Angiosperms, Core eudicots and Eudicots and order is Caryophyllales whereas Sun Star clade is Angiosperms and Monocots and order is Asparagales. Every plant have subfamilies. Rhubarb subfamilies are, Not Available and Sun Star subfamilies are Scilloideae. In this way you can compare scientific classification of Rhubarb and Sun Star and other products also.