Uniola Flatsedge

Cyperus unioloides

Native to:
Argentina, Australia, Bangladesh, Belize, Bolivia, Botswana, Brazil, Burkina, Cambodia, Central African Republic, China, Colombia, Costa Rica, Cuba, Dominican Republic, DR Congo, Eswatini, Ethiopia, Gambia, Guatemala, Guinea, Haiti, Honduras, India, Ivory Coast, Jamaica, Japan, Jawa, Lesotho, Madagascar, Malawi, Mali, Mexico, Mozambique, Myanmar, Nepal, New Guinea, Nigeria, Panamá, Paraguay, Peru, Philippines, Puerto Rico, Senegal, South Africa, Sudan-South Sudan, Sumatera, Suriname, Taiwan, Tanzania, Thailand, Uganda, United States, Uruguay, Vietnam, Zambia, Zimbabwe

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Cyperaceae
Genus:
Cyperus
Species:
Cyperus unioloides
USDA Symbol:
CYUN3

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Graminoid
Height:
90 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
jun,jul,aug,sep,oct
Bloom Colors:
green, brown

Garden & Ecology Notes

Wildlife Value:
waterfowl, shorebirds
Deer Resistant:
Yes

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
prefers habitats like wetlands and marshes

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days
Notes:
Seeds germinate best with consistent moisture and warm temperatures. Surface sow as light may aid germination.