Cyperaceae
Blunt spikerush
Eleocharis obtusa
- Family
- Cyperaceae
- Genus
- Eleocharis
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Common names
By language (2)
- English
- Blunt spikerush, Blunt spike rush
- French
- Eléocharide obtuse
Synonyms
- Eleocharis obtusa var. ellipsoidalis Fernald ex Svenson
- Eleocharis obtusa var. gigantea Fernald
- Eleocharis obtusa var. jejuna Fernald
- Eleocharis obtusa var. obtusa
- Eleocharis obtusa var. peasei Svenson
- Scirpus obtusus Willd.
- Trichophyllum obtusum (Willd.) House
Flowers
- Flower colour
- yellow (USDA PLANTS Database)
Characteristics
- Growth habit
- Graminoid
- Lifespan
- Annual, Perennial
- In the US and Canada
- Canada: native, Hawaii: native, Lower 48 states: native
Photos
Photo: David Eickhoff from Pearl City, Hawaii, USA, CC BY 2.0, from Wikimedia Commons 
Photo: David Eickhoff from Pearl City, Hawaii, USA, CC BY 2.0, from Wikimedia Commons 
Photo: Forest and Kim Starr, CC BY 2.0, from Wikimedia Commons 
Photo: David Eickhoff from Hawaiʻi, USA, CC BY 2.0, from Wikimedia Commons 
Photo: Rob Routledge, Sault College, Bugwood.org, CC BY 3.0, from Wikimedia Commons 
Photo: Ayotte, Gilles, 1948-, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Ayotte, Gilles, 1948-, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Ayotte, Gilles, 1948-, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Ayotte, Gilles, 1948-, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Ayotte, Gilles, 1948-, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Ayotte, Gilles, 1948-, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Ayotte, Gilles, 1948-, CC BY-SA 4.0, from Wikimedia Commons
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.