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Wildflowers of Europe

Iris pseudacorus

Family : IRIDACEAE (Iris Family)
Common Name (UK) : Yellow Flag
Common Name (DE) : Wasser-Schwertlilie
Common Name (FR) : Iris des marais
Habitat : common beside rivers, lakes and canals
Remarks : This plant is introduced to the U.S. where it is considered noxious and invasive.
"It is also called the Flower de Luce, or Fleur de Lys, being the origin of the heraldic emblem of the Kings of France. The legend is that early in the sixth century, the Frankish King Clovis, faced with defeat in battle, was induced to pray for victory to the god of his Christian wife, Clothilde. He conquered and became a Christian and thereupon replaced the three toads on his banner by three Irises, the Iris being the Virgin's flower. Six hundred years later, it was adopted by Louis VII of France as his heraldic bearings in his Crusade against the Saracens, and it is said that it then became known as Fleur de Louis, corrupted into Fleur de Luce and then into Fleur de Lys or Lis, though another theory for the name is that it was not named Fleur de Lys from Louis, but from the river Lys, on the borders of Flanders, where it was peculiarly abundant." From Botanical.com
First appearing : May
Abundance :

  • Photo Date : May 23, 2008
  • Location : Cormeille Ponds, Chantilly Forest south of Chantilly.
    N49° 09.434' E2° 29.677'
  • Photo Date : June 6, 2004
  • Location : In the Goldersbach valley near Bebenhausen.
  • Photo Date : June 7, 2004
  • Location : On the bank of the first pond downstream from the source of the Glems in the Rot & Schwartzwild Park, Stuttgart West.
  • Photo Date : June 7, 2005
  • Location : On the bank of the first pond downstream from the source of the Glems in the Rot & Schwartzwild Park, Stuttgart West.
    N48° 45.837' E9° 06.015'
  • Siting Date : June 7, 2005
  • Location :Along the Katzenbach See in the forest west of Stuttgart.
    N48° 44.536' E9° 04.588'