Cyperaceae
Knotted spikerush
Eleocharis interstincta
- Family
- Cyperaceae
- Genus
- Eleocharis
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Common names
By language (3)
- Chinese
- 多节荸荠
- English
- Knotted spikerush, Giant spikerush
- Haitian Creole
- Jon
Synonyms
- Eleocharis articulata Kunth
- Eleocharis cognata Steud.
- Eleocharis obsoleta (Nees) Steud.
- Eleocharis plantaginea Boeckeler
- Eleocharis septata Miq.
- Limnochloa articulata Nees
- Limnochloa obsoleta Nees
- Scirpus interstinctus Vahl
- Scirpus plantagineus Sw.
- Scirpus plantagineus Hance
- Trichophyllum interstinctum (Vahl) House
Flowers
- In flower
- February, April (from 10 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Graminoid
- Lifespan
- Perennial
- In the US and Canada
- Lower 48 states: native, Puerto Rico: native, U.S. Virgin Islands: native
Photos
FlowerPhoto: Douglas Goldman, CC BY-SA 4.0, from iNaturalist 
Photo: Wes Gapp, CC BY 4.0, from iNaturalist 
Photo: Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Bonnie Isaac, CC0, from iNaturalist 
Photo: Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0, from Wikimedia Commons 
Photo: johnyochum, CC BY 4.0, from iNaturalist 
Photo: Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Alexis López Hernández, CC BY 4.0, from iNaturalist 
Photo: Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Brandon Corder, CC BY 4.0, from iNaturalist 
Photo: Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Ann Redmond, CC BY 4.0, from iNaturalist
More in Eleocharis
- Chinese water chestnutEleocharis dulcisCyperaceae
- Needle spikerushEleocharis acicularisCyperaceae
- Common spikerushEleocharis palustrisCyperaceae
- Dwarf spikerushEleocharis parvulaCyperaceae
- Fewflower spikerushEleocharis quinquefloraCyperaceae
- Onescale spikerushEleocharis uniglumisCyperaceae
- Ovate spikerushEleocharis ovataCyperaceae
- Many-stalked spike-rushEleocharis multicaulisCyperaceae
- Soft-stem spikerushEleocharis mamillataCyperaceae
- Purple spikerushEleocharis atropurpureaCyperaceae
- Canada spikesedgeEleocharis geniculataCyperaceae
- Jointed spikesedgeEleocharis equisetoidesCyperaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.