Ricefield Flatsedge
Cyperus iria
- Native to:
- Afghanistan, Australia, Bangladesh, Benin, Borneo, Botswana, Burkina, Cambodia, Caroline Is., Chad, China, Comoros, DR Congo, Eritrea, Eswatini, Ethiopia, Gabon, Gambia, Ghana, Guam, Guinea, Hainan, India, Iran, Iraq, Ivory Coast, Japan, Jawa, Kazan-retto, Kenya, Korea, Laos, Lesser Sunda Is., Madagascar, Malawi, Malaya, Mali, Maluku, Marianas, Mauritania, Mozambique, Myanmar, Namibia, Nansei-shoto, Nepal, New Guinea, Niger, Nigeria, Ogasawara-shoto, Oman, Pakistan, Palau, Philippines, Senegal, Somalia, South Africa, South China Sea, Sri Lanka, Sudan-South Sudan, Sulawesi, Sumatera, Tadzhikistan, Taiwan, Tanzania, Thailand, Turkmenistan, Uganda, United States, Uzbekistan, Vietnam, Zambia, Zimbabwe
iNaturalist: © pwdeacon (iNaturalist #60375681)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Cyperaceae
- Genus:
- Cyperus
- Species:
- Cyperus iria
- USDA Symbol:
- CYIR
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:
- fertile, moisture-retentive loam
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- commonly found in wetland areas
Propagation & Germination
- Stratification:
- None required
- Germination Time:
- 7–21 days
- Notes:
- Seeds germinate readily in warm, moist conditions with light exposure. Flooding enhances germination.