Apium nodiflorum

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Apium nodiflorum
Helosciadium nodiflorum herbier.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Apiales
Family: Apiaceae
Genus: Apium
Species: A. nodiflorum
Binomial name
Apium nodiflorum

Apium nodiflorum, (synonym Helosciadium nodiflorum) commonly called Fool's-water-cress is a flowering plant found in ditches or streams and native to western Europe. It is a low-growing or prostrate perennial with pinnate leaves which have a vague resemblance to those of watercress. Apium nodiflorum has short-stalked umbels of very small white 5-petalled flowers which are opposite the leaves and grow from the side of the stem at the leaf axils. It blooms in July and August.[1][2]

It is not a poisonous plant, but it could be easily confused with the allegedly poisonous Lesser Water ParsnipBerula erecta. It is common throughout England, Wales and Ireland but is much less so in Scotland.[3]

Helosciadium nodiflorum, closeup of umbel flowers.

References[edit]

  1. ^ Fool's-water-cress Wild flowers of Ireland. Accessed July 2011 Apium nodiflorum Fool's-water-cress]
  2. ^ Apium nodiflorum (Fool's-water-cress) Online Atlas of British and Irish Flora. Accessed July 2011
  3. ^ Apium nodiflorum Peter Llewellyn Wild Flowers of the British Isles, Accessed 2011