Blunt Spikerush
Eleocharis obtusa
- Native to:
- Argentina, Canada, Hawaii, Prince Edward I., United States
iNaturalist: © elbourret (iNaturalist #242869365)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Cyperaceae
- Genus:
- Eleocharis
- Species:
- Eleocharis obtusa
- USDA Symbol:
- ELOB2
Growth Characteristics
- Life Cycle:
- Annual | Perennial
- Growth Habit:
- Graminoid
- Height:
- 50 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug,sep,oct
- Bloom Colors:
- brown
Garden & Ecology Notes
- Wildlife Value:
- waterfowl, shorebirds
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- moist, nutrient-rich, silty or clay soil
- 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:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds germinate best on moist, exposed mud surfaces. Requires light for germination.
Pre-treatment: None required
Source: npn.rngr.net