Groovenut Flatsedge
Cyperus sulcinux
- Native to:
- Australia, Bangladesh, Borneo, Cambodia, Caroline Is., China, Hainan, India, Jawa, Lesser Sunda Is., Maluku, Myanmar, New Guinea, Philippines, Taiwan, Thailand, Vietnam
Pycreus sulcinux (C.B.Clarke) C.B.Clarke Collected in China (licensed under https://creativecommons.org/licenses/by/4.0/ (creativecommons.org) )
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Cyperaceae
- Genus:
- Cyperus
- Species:
- Cyperus sulcinux
- USDA Symbol:
- CYSU13
Growth Characteristics
- Life Cycle:
- Annual
- 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, shorebirds
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- moist, nutrient-rich, loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- 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:
- Seeds germinate best with consistent moisture and warm temperatures. Light may enhance germination.