Rice Flat Sedge

Catalogue Type

Weed Catalogue

Scientific Name

Cyperus iria L.

Family

Cyperaceae

Distinguishing Characters

germinates best in full light; C4 plant; may have
multiple generations in one season; prefers lower elevations;
used as forage and in mat-making

Photo of Weed

Description

Found in: lowland, upland Establishment method: DS, WS >> TP
Growth habit: erect; tufted up to 0.8 m
Emergence time: within 7 d Moisture: moist to wet
Competitiveness: moderate Seed contaminant: yes
Cultural control: early flooding; hand weeding
Reported resistance: none Life cycle: annual Seed wt: 0.1
Method(s) of reproduction: seeds Maturity time: as little as 30 d
Dormancy: yes; can germinate about 75 d after shedding
Elevation: up to 1,200 m Light: sunny