Butomus umbellatus (Flowering Rush) is a species of perennial herb in the family Butomaceae. They have a self-supporting growth form. They are associated with freshwater habitat. They are native to Norway, Greece, Morocco, Estonia, Iraq, Austria, Romania, Turkmenistan, Azerbaijan, Uzbekistan, Portugal, Poland, Albania, Ireland, Croatia, Czech Republic, Israel, Syria, China, Moldova, Algeria, Jordan, Georgia, Belarus, Mongolia, The Netherlands, Ukraine, Spain, Germany, Lithuania, Belgium, Armenia, Serbia And Montenegro, Lebanon, Finland, France, Turkey, Denmark, Latvia, Iran, Switzerland, Italy, Afghanistan, Kazakhstan, Russia, Bosnia & Herzegovina, Sweden, United Kingdom, Bulgaria, and Hungary. They have simple, broad leaves. Flowers are visited by Small Copper, marmalade hoverfly, Marsh Hoverfly, and Black and Yellow Mud Dauber. Individuals can grow to 0.97 m.
EOL has data for 26 attributes, including: