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How to Manage Pests

Identification: Weed Photo Gallery

Smallflower umbrella sedge

Scientific name: Cyperus difformis (Sedge family: Cyperaceae)

Life stages of Smallflower umbrella sedge top picture bottom left picture bottom right picture

Click on image to enlarge

DESCRIPTION:

Smallflower umbrella sedge, sometimes called smallflower umbrellaplant, is an annual sedge that is 12 to 16 inches (30 - 40 cm) tall. On seedlings, narrow, grasslike leaves grow out in three directions at approximately 120° angles. Mature plant has several triangular, pithy stems, rising from the base of the plant. Each stem has secondary leaves below the flower clusters. Globular dense flower clusters may or may not be stalked. Individual flowers are green with brown sides on spikes. Found throughout the rice-growing areas, this plant produces thousands of small seeds that become uniformly distributed over the field.

Sedge ID illustration.


Statewide IPM Program, Agriculture and Natural Resources, University of California
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