Cyperaceae
Lesser pond sedge
Carex acutiformis
- Family
- Cyperaceae
- Genus
- Carex
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Common names
By language (23)
- Belarusian
- Асака ілжывавострая
- Bulgarian
- Възостра острица
- Catalan
- Laîche des Marais
- Croatian
- Močvarni šaš
- Czech
- Ostřice ostrá, Ostřice kalužní
- Danish
- Kær-Star
- Dutch
- Moeraszegge
- English
- Lesser pond sedge, Lesser pond-sedge
- Estonian
- Sootarn
- Finnish
- Hetesara
- French
- Laîche des marais
- German
- Sumpf-Segge, Sumpfsegge, Laîche des Marais, Scharfkantige Segge
- hsb
- Bahnowa rězna
- Irish
- Cíb locháin
- Latvian
- Krastmalas grīslis
- Lithuanian
- Pelkinė viksva, Laîche des Marais
- Macedonian
- Заострена острика
- Norwegian Bokmål
- Stautstarr
- Persian
- کارکس آکوتیفرمیس
- Polish
- Turzyca błotna
- Russian
- Осока островидная, Осока заостренная, Осока заострённая, Осока ложно-острая, Осока ложноострая, Осока островатая
- Swedish
- Brunstarr, Laîche des Marais
- Welsh
- Hesgen-y-dŵr fach
Synonyms
- Carex acutiformis f. depauperata (Lange) Kük.
- Carex acutiformis f. gracilior Kük.
- Carex acutiformis f. maxima (Urb.) Kük.
- Carex acutiformis f. minor Peterm.
- Carex acutiformis f. spadicea (Nyman) Asch. & Graebn.
- Carex acutiformis f. spadicea (Hartm.) Neuman
- Carex acutiformis subsp. kochiana (DC.) K.Richt.
- Carex acutiformis var. abbreviata Beck
- Carex acutiformis var. kochiana (DC.) Garcke
- Carex acutiformis var. spadicea (Hartm.) Asch. & Graebn.
- Carex dubia Hosé
- Carex intermedia Suter
- Carex kochiana DC.
- Carex olgae Regel
- Carex paludosa Gooden.
- Carex paludosa f. depauperata Lange
- Carex paludosa prol. spadicea (Hartm.) Rouy
- Carex paludosa subsp. kochiana (DC.) Arcang.
- Carex paludosa var. brachylepis L.C.Lamb.
- Carex paludosa var. brachystachys L.C.Lamb.
- Carex paludosa var. kochiana (DC.) Gaudin
- Carex paludosa var. longiglumis St.-Lag.
- Carex paludosa var. spadicea Nyman
- Carex paludosa var. spadicea Hartm.
- Carex palustris Suter
- Carex palustris J.F.Gmel.
- Carex rigens Thuill.
- Carex riparia Geners.
- Carex riparia var. acutiformis (Ehrh.) Fiori
- Carex rufa Schrank
- Carex scheuchzeri J.F.Gmel.
- Carex spadicea Roth
- Carex spadicea f. maxima Urb.
- Carex spadicea var. kochiana (DC.) Crép.
- Edritria paludosa (Gooden.) Raf.
- Trasus paludosus (Gooden.) Gray
Flowers
- In flower
- April to May (from 40 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Graminoid
- Lifespan
- Perennial
- In the US and Canada
- Canada: introduced, Lower 48 states: introduced
Photos
FlowerPhoto: Wolfgang Jauch, CC BY 4.0, from iNaturalist 
FlowerPhoto: Kai Löhr, CC BY 4.0, from iNaturalist 
FlowerPhoto: pavlaki1968, CC BY 4.0, from iNaturalist 
FlowerPhoto: Eugene Popov, CC BY 4.0, from iNaturalist 
Photo: This photography was created by Artem Topchiy, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Bernhard Hildebrand, CC BY 4.0, from iNaturalist 
Photo: AnRo0002, CC0, from Wikimedia Commons 
Photo: Zeke Marshall, CC BY 4.0, from iNaturalist 
Photo: AnRo0002, CC0, from Wikimedia Commons 
Photo: Robert H. Wardell, CC0, from iNaturalist 
Photo: AnRo0002, CC0, from Wikimedia Commons 
Photo: Игорь Загребин, CC0, from iNaturalist
More in Carex
- Sand sedgeCarex arenariaCyperaceae
- Mud sedgeCarex limosaCyperaceae
- Slender tufted-sedgeCarex acutaCyperaceae
- Star sedgeCarex echinataCyperaceae
- Heath sedgeCarex flaccaCyperaceae
- Common sedgeCarex nigraCyperaceae
- European woodland sedgeCarex sylvaticaCyperaceae
- Tufted sedgeCarex elataCyperaceae
- Hairy sedgeCarex hirtaCyperaceae
- Woollyfruit sedgeCarex lasiocarpaCyperaceae
- Greater tussock-sedgeCarex paniculataCyperaceae
- Hanging sedgeCarex pendulaCyperaceae
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.