Oahu Flatsedge

Cyperus hypochlorus

Native to:
Hawaii, United States

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Cyperaceae
Genus:
Cyperus
Species:
Cyperus hypochlorus
USDA Symbol:
CYHY2

Growth Characteristics

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

Garden & Ecology Notes

Wildlife Value:
waterfowl, shorebirds
Deer Resistant:
Yes
Salt Tolerant:
Yes

Soil Requirements

Soil Type:
moist, nutrient-rich, clayey soil
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
commonly found in wetlands and marshy areas

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days
Notes:
Requires moist to wet conditions and light for germination.