Knotted Spikerush
Eleocharis interstincta
- Native to:
- Argentina, Bahamas, Belize, Bermuda, Bolivia, Brazil, Cayman Is., Colombia, Costa Rica, Cuba, Dominican Republic, El Salvador, French Guiana, Guatemala, Guyana, Haiti, Honduras, Jamaica, Leeward Is., Mexico, Nicaragua, Panamá, Paraguay, Puerto Rico, Suriname, Trinidad-Tobago, United States, Virgin Islands, Windward Is.
iNaturalist: © wesgapp (iNaturalist #198909110)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Cyperaceae
- Genus:
- Eleocharis
- Species:
- Eleocharis interstincta
- USDA Symbol:
- ELIN2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 100 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug,sep,oct
- Bloom Colors:
- brown
Garden & Ecology Notes
- Wildlife Value:
- waterfowl, wading birds, small mammals
- Deer Resistant:
- Yes
- Salt Tolerant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts vigorously from rhizomes following fire in wetland and marsh habitats.
Soil Requirements
- Soil Type:
- rich, waterlogged, organic soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist to waterlogged
- Notes:
- Commonly found in marshes and wetlands
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–60 days
- Notes:
- Seeds germinate best in saturated or flooded conditions. Light may enhance germination.