flowering-rush USDA PLANTS Symbol: BUUM
U.S. Nativity: Exotic
Habit: Aquatic Forbs/Herbs
Butomus umbellatus L.

Jump to: Resources | Images | Distribution Maps | Sources
Taxonomic Rank: Liliopsida: Alismatales: Butomaceae
Synonym(s): grassy rush, water gladiolus
Native Range: Eurasia (BAIL);

Flowering rush is a rhizomatous perennial that grows on the margins of slow moving waterways. This plant can reach from 1-5 ft. (0.3-1.5 m) in height and can survive in water of up to 9.8 ft. (3 m) deep. The leaves are linear, up to 3.2 ft. (1 m) long and triangular in cross-section. Flowering occurs in June to August, when umbels of small, ¬ĺ-1 in. (1.9-2.5 cm) wide, pink to white flowers develop. Seeds have long beaks, but rarely germinate. This plant spreads mostly from rhizomes and occurs in wet areas with muddy soil, such as marshlands, lakes and streams. Flowering rush is native to Eurasia and was first found in the United States in 1918.

Identification, Biology, Control and Management Resources

Selected Images from Invasive.orgView All Images at Invasive.org


Flower(s);
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
Additional Resolutions & Image Usage

Fruit(s);
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
Additional Resolutions & Image Usage

Root(s);
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
Additional Resolutions & Image Usage

Seed(s);
Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org
Additional Resolutions & Image Usage

EDDMapS Distribution:
This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org
 


State(s) Where Reported invasive.
Based on state level agency and organization lists of invasive plants from WeedUS database.

Alternative content

Get Adobe Flash player





Invasive Listing Sources:
Connecticut Invasive Plant Working Group
Faith Campbell, 1998
Hoffman, R. & K. Kearns, Eds. 1997. Wisconsin manual of control recommendations for ecologically invasive plants. Wisconsin Dept. Natural Resources, Bureau of Endangered Resources. Madison, Wisconsin. 102pp.
New Hampshire Invasive Species Committee. 2005. Guide to Invasive Upland Plant Species in New Hampshire. New Hampshire Department of Agriculture,  Markets and Food Plant Industry Division and New Hampshire Invasive Species Committee.
Vermont Department of Environmental Conservation