fool's-watercress
Helosciadium nodiflorum (L.) W.D.J.Koch

Helosciadium nodiflorum, fool's-watercress, is a flowering plant in the Apiaceae family. It is native to western Europe and grows in ditches, streams, and wetlands with fresh or brackish water. The plant is not toxic to humans but can be mistaken for the potentially poisonous lesser water parsnip.
Description
Helosciadium nodiflorum (L.) W.D.J.Koch is a member of the Apiaceae family and is commonly known as fool's-watercress. It is distributed across regions including SE, NO, DK, Belgium, Afghanistan, Albania, Algeria, and parts of the Americas and Mediterranean. This species is often found in aquatic or semi-aquatic habitats such as ditches, streams, and wetlands. Despite its resemblance to some toxic species in the same family, it is not harmful to humans. The plant was first described in 1824.
Other common names
fool's-watercresswater-celery
Distribution
SE · NO · DK · Belgium · Brussels-Capital Region · Flemish Region · Walloon Region · Afghanistan · Albania · Algeria · Argentina Northeast · Argentina South · Azores · Baleares · Bulgaria · California · Canary Is. · Chad · Chile Central · Chile North · Corse · Cyprus · East Aegean Is. · Egypt · Eritrea · Ethiopia · France · Germany · Great Britain · Greece
Synonyms
Lavera nodifloraMeum nodiflorumPimpinella nodifloraSison nodiflorumSium nodiflorumSelinum nodiflorumSeseli nodiflorumApium nodiflorumCicuta nodifloraHelodium nodiflorum

