(des sources variées, pas inclus dans Coste) :
Annuelle, très robuste, simple ou peu ramifiée
Écologie : [Introduit] bords des rivières, friches humides
Répartition hors de France :
(modified from Butcher, British Flora 1961):
NOTE: the French text is more complete and up-to-date
A robust, red-stemmed, branched annual 30-125 cm high.
Ecology UK: (distribution according to flora) It is a native of India and abundantly naturalized in the mud banks of many British rivers.
France:
Distribution outside France: ?
Fleurs : rose, 20-40 mm, dressé au-dessus les feuilles, éperon petit, courbé vers l'avant
Flowers: 30-40 mm long, 20-25 mm diam.; sepals and petals pink or white, spotted with red, spur of lower sepal very small, recurved;
Flowering UK: Early Aug.-mid Oct