Cyperaceae
Variable flatsedge
Cyperus difformis
- Family
- Cyperaceae
- Genus
- Cyperus
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Common names
By language (14)
- Arabic
- سعد متنوع
- arz
- سعد متنوع
- Bangla
- জলঘাস
- Chinese
- 异花莎草, 異花莎草, 异型莎草, 王母钗, 球穗莎草, 異型莎草, 球穗碱草
- English
- Variable flatsedge, Smallflower umbrella sedge, Small flower umbrella sedge
- Filipino
- Siraw-siraw, Buto-butones
- French
- Souchet Difforme
- Japanese
- タマガヤツリ
- lah
- جھونے دا موتھا
- mul
- Difformis
- Punjabi
- ਝੋਨੇ ਦਾ ਮੋਥਾ
- Russian
- Сыть разнородная
- Spanish
- Junco de Agua, Cipero, Cípero, Juncia de agua
- Thai
- กกขนาก, C. difformis
Synonyms
- Cyperus difformis f. humilis Debeaux
- Cyperus difformis f. maximus C.B.Clarke
- Cyperus difformis var. breviglobosus Kük.
- Cyperus difformis var. subdecompositus Kük.
- Cyperus goeringii Steud.
- Cyperus holoschoenoides Jan
- Cyperus holoschoenoides Jan ex Schult.
- Cyperus lateriflorus Torr.
- Cyperus oryzetorum Steud.
- Cyperus protractus Link
- Cyperus subrotundus Llanos
- Cyperus viridis Willd. ex Kunth
Flowers
- In flower
- July to May (from 99 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Graminoid
- Lifespan
- Annual
- In the US and Canada
- Hawaii: introduced, Lower 48 states: introduced, Pacific Basin: native, Puerto Rico: introduced
Photos
FlowerPhoto: 胡正恆(Jackson Hu), CC BY 4.0, from iNaturalist 
FlowerPhoto: chiuluan, CC BY 4.0, from iNaturalist 
FlowerPhoto: 胡正恆(Jackson Hu), CC BY 4.0, from iNaturalist 
FlowerPhoto: chiuluan, CC BY 4.0, from iNaturalist 
Photo: Forest & Kim Starr, CC BY 3.0, from Wikimedia Commons 
Photo: zebedeugalinha, CC BY 4.0, from iNaturalist 
Photo: Lucas Christofides, CC BY 4.0, from iNaturalist 
Photo: Forest & Kim Starr, CC BY 3.0, from Wikimedia Commons 
Photo: Forest & Kim Starr, CC BY 3.0, from Wikimedia Commons 
Photo: Forest & Kim Starr, CC BY 3.0, from Wikimedia Commons 
Photo: Thomas Mesaglio, CC BY 4.0, from iNaturalist 
Photo: Show_ryu, CC BY-SA 3.0, from Wikimedia Commons
More in Cyperus
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- Yellow nutsedgeCyperus esculentusCyperaceae
- Cyperus alternifoliusCyperaceae
- Brown galingaleCyperus fuscusCyperaceae
- Tall flatsedgeCyperus eragrostisCyperaceae
- GalingaleCyperus longusCyperaceae
- Cyperus capitatusCyperaceae
- Ricefield flatsedgeCyperus iriaCyperaceae
- Jointed flatsedgeCyperus articulatusCyperaceae
- Pygmy sedgeCyperus michelianusCyperaceae
- Haspan flatsedgeCyperus haspanCyperaceae
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.