marshwort

marshwort

(ˈmɑːʃˌwɜːt)
n
(Plants) a prostrate creeping aquatic perennial umbelliferous plant of the genus Apium, esp A. inundatum, having small white flowers: related to wild celery
References in periodicals archive ?
`At Moira Lake -- where artificially high water levels have been maintained during summer since the 1930s -- plants such as giant rush that "tolerate" water level fluctuations have been most advantaged, while others such as milfoil and wavy marshwort have been unable to reproduce without a drying period,' Leslie says.
And waterplants such as wavy marshwort used to provide nesting habitat for grebes and whiskered terns.