Oneflower Flatsedge
Cyperus retroflexus
- Native to:
- Mexico, United States
iNaturalist: © dylanpderouen (iNaturalist #36917952)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Cyperaceae
- Genus:
- Cyperus
- Species:
- Cyperus retroflexus
- USDA Symbol:
- CYRE14
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 60 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, songbirds
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts from rhizomes following fire; common in fire-maintained wet prairies and savannas.
Soil Requirements
- Soil Type:
- moist, well-drained sandy loam
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- good drainage required
- Moisture:
- consistently moist
- Notes:
- commonly found in wetlands and riverbanks
Propagation & Germination
- Stratification:
- None required
- Germination Time:
- 14–30 days
- Notes:
- Seeds germinate readily in moist, warm conditions. Light may enhance germination.