Umbrella sedge
Cyperus involucratus
family
Cyperaceae
origin
Exotic
declaration
NIL
For information only
Common names
African sedge, Dwarf papyrus, Flat sedge, Umbrella plant.
A reed-like plant with basal leaves reduced to sheaths. It produces several upright stems (up to 120 cm tall) topped with large seed-heads. These branched seed-heads are subtended by many green leafy bracts that have an umbrella-like appearance. The seed-heads have about eight main branches (5-10 cm long) radiating from the top of the stem. At the tips of these branches are clusters of elongated flower spikelets that turn reddish-brown as they mature.
Impact
Impact
This species is regarded as an environmental weed in Queensland, Western Australia and the Northern Territory. It has escaped cultivation and become established along waterways and in wetlands, particularly near habitation. It is of particular concern in south-eastern Queensland, where it is very common along waterways and regarded to be among the top 100 most invasive plants. It has also been reported from conservation areas in South Australia (e.g. Cleland Conservation Park and Sturt Gorge Recreation Park).Umbrella sedge (Cyperus involucratus) also invades marshy areas and stream edges in Hawaii, and in New Zealand it is a persistent weed of roadside gutter channels.
Location
Location
Characteristics
Characteristics
Similar Species
Similar Species
This species is regarded as an environmental weed in Queensland, Western Australia and the Northern Territory. It has escaped cultivation and become established along waterways and in wetlands, particularly near habitation. It is of particular concern in south-eastern Queensland, where it is very common along waterways and regarded to be among the top 100 most invasive plants. It has also been reported from conservation areas in South Australia (e.g. Cleland Conservation Park and Sturt Gorge Recreation Park).Umbrella sedge (Cyperus involucratus) also invades marshy areas and stream edges in Hawaii, and in New Zealand it is a persistent weed of roadside gutter channels.
