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Flowering Rush

Butomus umbellatus

Plant Description

Tall cylindrical stalks topped with rounded, umbrella-like clusters of 20-50 flowers. Each flower has three large pink petals and three small pink sepals; resmbles bulrushes and true rushes when not in flower. Fleshy, trailing rhizomes and sometimes bulbils at base of stalks. The shallow water growth form has stiff, upright leaves and the deeper water growth form has flexible floating leaves.

Plant Details

Life Forms
ODA Listing
Soil and Moisture Conditions
Suggested Actions
Shade Preference
Mature Height 5'
Distribution Populations have been found in Washington, Idaho, Oregon, and a smattering of other (mostly northern) US States, and in Canada.
Control Small patches can be dug up, being sure to capture and remove bulbils.
Disposal Methods Do not allow pulled plant fragments to return to the water.
Reproduction and Spread Bulbils fall off and start new plants; rhizomes break off to form new plants; some varieties produce seeds.
Introduced native to Eurasia, first found in Canada in late 1800's, and in US in early 1900s.
Look Alikes bulrushes and true rushes
Impact Crowds out native wetland and riparian vegetation.
More Info
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