Manyspike Flatsedge
Cyperus polystachyos
- Native to:
- Algeria, Andaman Is., Angola, Argentina, Ascension, Australia, Bahamas, Bangladesh, Belize, Benin, Bermuda, Bismarck Archipelago, Bolivia, Borneo, Botswana, Brazil, Burkina, Burundi, Cambodia, Canary Is., Cape Verde, Caroline Is., Cayman Is., Central African Republic, Chad, China, Cocos (Keeling) Is., Colombia, Comoros, Congo, Costa Rica, Cuba, Dominican Republic, DR Congo, Easter Is., Egypt, El Salvador, Equatorial Guinea, Eritrea, Eswatini, French Guiana, Gabon, Galápagos, Gambia, Ghana, Guatemala, Guinea, Guinea-Bissau, Gulf of Guinea Is., Guyana, Hainan, Hawaii, Honduras, India, Iraq, Italy, Ivory Coast, Jamaica, Japan, Jawa, Kazan-retto, Kenya, Korea, Laccadive Is., Laos, Leeward Is., Lesser Sunda Is., Liberia, Libya, Line Is., Madagascar, Malawi, Malaya, Maldives, Mali, Maluku, Marianas, Marquesas, Mauritania, Mauritius, Mexico, Morocco, Mozambique, Myanmar, Namibia, Nansei-shoto, New Guinea, Nicaragua, Nicobar Is., Niger, Nigeria, Ogasawara-shoto, Pakistan, Palau, Palestine, Panamá, Paraguay, Peru, P
iNaturalist: © yolandeyoung (iNaturalist #273872810)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Cyperaceae
- Genus:
- Cyperus
- Species:
- Cyperus polystachyos
- USDA Symbol:
- CYPO
Growth Characteristics
- Life Cycle:
- Annual | Perennial
- Growth Habit:
- Graminoid
- Height:
- 60 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug,sep,oct
- Bloom Colors:
- brown, green
Garden & Ecology Notes
- Wildlife Value:
- waterfowl, shorebirds
- Deer Resistant:
- Yes
- Salt Tolerant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts from rhizomes following fire; commonly found in wet prairies managed with prescribed fire.
Soil Requirements
- Soil Type:
- moist, fertile, well-drained soil
- pH:
- 5.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- commonly found in wetlands and marshy areas
Propagation & Germination
- Stratification:
- None required
- Germination Time:
- 14–30 days
- Notes:
- Seeds germinate readily in moist to wet conditions with warm temperatures. Light may enhance germination.
Pre-treatment: Seeds are soaked overnight in water. Seeds should be cleaned before they are sown.
Establishment: Indigenous to Hawai'i. Native to tropical and subtropical regions worldwide. Common on open or grassy, often disturbed areas, from mesic coastal sites to mesic and wet forest, 0-1,420 m, on Midway Atoll and documented from all the main islands except Kaho'olawe.
Source: npn.rngr.net