Cyperaceae
Green flatsedge
Cyperus virens
- Family
- Cyperaceae
- Genus
- Cyperus
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Common names
By language (1)
- English
- Green flatsedge
Synonyms
- Cyperus consanguineus var. minarum (Boeck.) Denton
Flowers
- In flower
- April to May, October (from 19 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Graminoid
- Lifespan
- Perennial
- In the US and Canada
- Hawaii: introduced, Lower 48 states: native, Puerto Rico: native
Photos

FlowerPhoto: Daijiang Li, CC BY 4.0, from iNaturalist 
FlowerPhoto: Celeste Ray, CC BY 4.0, from iNaturalist 
FlowerPhoto: Jay Horn, CC BY 4.0, from iNaturalist 
FlowerPhoto: Nicola van Berkel, CC BY-SA 4.0, from iNaturalist 
Photo: Neptalí Ramírez Marcial, CC BY 4.0, from Wikimedia Commons 
Photo: Amber M. King, CC BY 4.0, from iNaturalist 
Photo: Michael Thaibinh, CC BY 4.0, from Wikimedia Commons 
Photo: Steven Joyner, CC BY 4.0, from iNaturalist 
Photo: Neptalí Ramírez Marcial, CC BY 4.0, from Wikimedia Commons 
Photo: Jody Shugart, CC BY 4.0, from iNaturalist 
Photo: Jay Horn, CC BY 4.0, from Wikimedia Commons 
Photo: Tyler Bishop, CC BY 4.0, from iNaturalist
More in Cyperus
- Papyrus sedgeCyperus papyrusCyperaceae
- NutgrassCyperus rotundusCyperaceae
- Yellow nutsedgeCyperus esculentusCyperaceae
- Cyperus alternifoliusCyperaceae
- Brown galingaleCyperus fuscusCyperaceae
- Tall flatsedgeCyperus eragrostisCyperaceae
- Variable flatsedgeCyperus difformisCyperaceae
- GalingaleCyperus longusCyperaceae
- Cyperus capitatusCyperaceae
- Ricefield flatsedgeCyperus iriaCyperaceae
- Jointed flatsedgeCyperus articulatusCyperaceae
- Pygmy sedgeCyperus michelianusCyperaceae
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.