Cyperus alternifolius, the umbrella papyrus, umbrella sedge or umbrella palm, is a grass-like plant in the very large genus Cyperus of the sedge family Cyperaceae.
The plant is native to West Africa, Madagascar and the Arabian Peninsular, but widely distributed throughout the world.[2]
The subspecies Cyperus alternifolius ssp. flabelliformis is also known as Cyperus involucratus Rottb..[1] It has gained the Royal Horticultural Society's Award of Garden Merit.[3][4]
Cultivation
Cyperus alternifolius is frequently cultivated as an ornamental plant worldwide. It is planted in gardens in the ground, pots, in ponds, and as a house plant. It is not hardy, and requires protection when temperatures fall below 5 °C (41 °F)[3] (USDA Zones: 9a-11b).[5]
It is propagated by dividing the roots and requires copious amounts of water.[6]
The cultivar Cyperus alternifolius 'Variegatus' is grown for its variegated foliage and smaller size.[7]
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