Apium graveolens, known in English as wild celery,[2][3] is an Old World species of flowering plant in the family Apiaceae.

Apium graveolens is a stout biennial or monocarpic perennial herb, producing flowers and seeds only once, during its second or a later year.

[8] Other vernacular names have been used, including "smallage" [mainly archaic – "now rare" (OED), but still in occasional use, primarily outside of the species' native range].

[1] It is a plant of damp places, usually near the coast where the soil is salty, typically on the brackish reaches of tidal rivers, ditch and dyke margins, saltmarshes, and sea walls.

[13] It is widely naturalised outside this range, including in Scandinavia, North and South America, Africa, India, central, eastern and southern Asia, and New Zealand.