The scientific classification of Aster and Celery 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. Aster and Celery kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Aster and Celery family is a major factor of Aster and Celery 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. Aster belongs to the family Asteraceae and Celery belongs to the family Apiaceae.
While comparing scientific classification, Aster and Celery genus and other classification are also important. Also, when you compare Aster and Celery, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Aster and other plant's genus is Apium. Aster tribe is Astereae and Celery tribe is Apieae. Aster clade is Angiosperms, Asterids and Eudicots and order is Asterales whereas Celery clade is Angiosperms, Asterids and Eudicots and order is Apiales. Every plant have subfamilies. Aster subfamilies are, Asteroideae and Celery subfamilies are Apioideae. In this way you can compare scientific classification of Aster and Celery and other products also.