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
Apium virus Y Apium virus Y "Apium virus Y" (ApVY) is a plant pathogenic virus in the genus "Potyvirus" and the virus family "Potyviridae". Apium virus Y is a recently described member of the potyvirus family. It was first found in Australia in 2002 in poison hemlock ("Conium maculatum": an immigrant weed in Australia). A survey of native and weed species in the family Apiaceae found ApVY to be widespread in Australia. In addition, this survey and others found two other potyviruses. One was a well-known potyvirus infecting the Apiaceae, "Celery mosaic virus" (CeMV). CeMV has been found in celery ("Apium graveolens") crops