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
Celery mosaic virus also affects umbelliferous plants, removal of umbelliferous weeds, like wild celery and wild parsnip, helps to control aphid populations. Celery grown in fields that have been host free for 2–3 months show greatly reduced risk of exposure to CeMV. Many studies have shown reduced virus outbreaks and severity in fields treated with reflective mulch which can provide unappealing visual stimuli to infected aphids. Fields treated with this mulch experience reduced infection rates. The complete genome of Celery Mosaic Virus was sequenced in 2011. It was found to be 9999 nucleotides in length, encoding for 3181 amino acids in a single