Knotted Spikerush
Eleocharis interstincta
- Native to:
- Argentina, Bahamas, Belize, Bermuda, Bolivia, Brazil, Cayman Is., Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, French Guiana, Guam, Guatemala, Guyana, Haiti, Honduras, Jamaica, Leeward Is., Mexico, Nicaragua, Panamá, Paraguay, Puerto Rico, Suriname, Trinidad-Tobago, United States, Venezuela, 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:
- 91 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- may, jun, jul, aug, sep, oct
Garden & Ecology Notes
- Minimum Light:
- Part Sun
- Best Light:
- Full Sun
- Habitat:
- Wetland, Aquatic
- Wildlife Value:
- birds
- Salt Tolerant:
- Yes
- Ecology:
- An emergent aquatic sedge characteristic of shallow fresh to brackish marshes, lake margins, and wet depressions. Often forms dense colonies via stout rhizomes and provides cover and foraging habitat for wetland birds and aquatic fauna.
Soil Requirements
- Soil:
- peaty — also tolerates sandy, loam, clay
- pH:
- 4.5 - 7.0 (acidic to neutral)
- Drainage:
- wet
- Moisture:
- wet
- Notes:
- Occurs in saturated or submerged peaty, mucky, or fine sandy substrates in shallow freshwater.