The scientific classification of Pennywort and Water 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. Pennywort and Water Celery kingdom and all other plants kingdom is Plantaea.
Plant family is the group of plants which have something in common. Pennywort and Water Celery family is a major factor of Pennywort and Water 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. Pennywort belongs to the family Apiaceae and Water Celery belongs to the family Apiaceae.
While comparing scientific classification, Pennywort and Water Celery genus and other classification are also important. Also, when you compare Pennywort and Water Celery, other factors should also be taken into considerations like order, subfamilies, tribe, clade etc. First plant's genus is Hydrocotyle and other plant's genus is Oenanthe. Pennywort tribe is Not Available and Water Celery tribe is Oenantheae. Pennywort clade is Angiosperms, Asterids and Eudicots and order is Apiales whereas Water Celery clade is Angiosperms, Asterids and Eudicots and order is Apiales. Every plant have subfamilies. Pennywort subfamilies are, Not Available and Water Celery subfamilies are Apioideae. In this way you can compare scientific classification of Pennywort and Water Celery and other products also.