Oenanthe javanica Oenanthe javanica Oenanthe javanica, commonly Java waterdropwort, Chinese celery, Indian pennywort, Japanese parsley, water celery and water dropwort, is a plant of the water dropwort genus originating from East Asia. (Chinese celery is also the name given to "Apium graveolens" var. "secalinum"). It has a widespread native distribution in temperate Asia and tropical Asia, and is also native to Queensland, Australia. This plant should not be confused with the plants of the genus "Cryptotaenia", sometimes called "Japanese wild parsley" ("mitsuba" in Japanese). "O. javanica" is a perennial herb that grows to about 1 m in height, with fibrous roots that
Plant identification Plant identification Plant identification is the process of matching a specimen plant to a known taxon. It uses various methods, most commonly dichotomous keys or multi-access keys. Plant identification has evolved over hundreds of years and depends to a large extent on what criteria and whose system is used. Plant identification implies comparisons of certain characteristics and then assigning a particular plant to a known taxonomic group, ultimately arriving at a species or infraspecific name. In the history of botany many large systems, useful at the time, were widely used for decades until superseded as taxonomic knowledge progressed. The study