Poaceae
Knotgrass
Paspalum distichum
- Family
- Poaceae
- Genus
- Paspalum
Pet and kid safety: not checked yet. Check pet-safe plants
Is yours looking unwell? Scan your plant — free
Common names
By language (10)
- Arabic
- مداد
- Chinese
- 双穗雀稗, 雙穗雀稗, 铜线草
- English
- Knotgrass, Couch paspalum, Mercer grass, Buffalo quick paspalum, Water couch, Ginger grass, Knot grass, Salt jointgrass
- Japanese
- キシュウスズメノヒエ
- Korean
- 물참새피
- Persian
- ارزن باتلاقی دو طرفی
- Portuguese
- Graminhão
- Punjabi
- ਨੜੀ ਘਾਹ
- Swedish
- Tvillinghirs
- Welsh
- Byswellt y dŵr
Synonyms
- Anastrophus paspalodes (Michx.) Nash
- Digitaria disticha (L.) Fiori & Paol.
- Digitaria paspalodes Michx.
- Dimorphostachys oajacensis (Steud.) E.Fourn. ex Hemsl.
- Milium distichum (L.) Muhl.
- Milium paspalodes (Michx.) Elliott
- Panicum digitaria (Poir.) Latirr.
- Panicum digitarioides Raspail ex Steud.
- Panicum fernandezianum Colla
- Panicum paspaliforme J.Presl
- Panicum polyrrhizum J.Presl
- Paspalum berteroanum Balb. ex Colla
- Paspalum bracteatum Dufour ex Kunth
- Paspalum chepica Steud.
- Paspalum digitaria Poir.
- Paspalum distichum subsp. paspalodes (Michx.) Thell.
- Paspalum distichum subsp. paucispicatum (Vasey) Verloove & Reynders
- Paspalum distichum var. digitaria (Poir.) Hack.
- Paspalum distichum var. indutum Shinners
- Paspalum distichum var. longirepens Domin
- Paspalum distichum var. microstachyum Domin
- Paspalum distichum var. paspalodes (Michx.) Thell.
- Paspalum elliottii S.Watson
- Paspalum fernandezianum Colla
- Paspalum glaucifolium Bertero ex Colla
- Paspalum michauxianum Kunth
- Paspalum oajacense Hemsl.
- Paspalum oaxacense Steud.
- Paspalum paspaliforme J.Presl
- Paspalum paspalodes (Michx.) Scribn.
- Paspalum paspalodes var. paspalodes
- Paspalum paucispicatum Vasey
- Paspalum polyrrhizum J.Presl
- Paspalum schaffneri Griseb. ex E.Fourn.
- Paspalum vaginatum var. pubescens Döll
Flowers
- Flower colour
- green (USDA PLANTS Database)
Characteristics
- Growth habit
- Graminoid
- Lifespan
- Perennial
- In the US and Canada
- Hawaii: introduced, Lower 48 states: native, Pacific Basin: introduced, Puerto Rico: native, U.S. Virgin Islands: native
Photos
Photo: Mark Marathon, CC BY-SA 3.0, from Wikimedia Commons 
Photo: No machine-readable author provided. Keisotyo assumed, CC BY-SA 4.0, from Wikimedia Commons Photo: zorzon claudio, CC BY-SA 4.0, from Pl@ntNet via GBIF 
Photo: No machine-readable author provided. Keisotyo assumed, CC BY-SA 4.0, from Wikimedia Commons Photo: Salvatore Simeoli, CC BY-SA 4.0, from Pl@ntNet via GBIF 
Photo: No machine-readable author provided. Keisotyo assumed, CC BY-SA 4.0, from Wikimedia Commons Photo: Muhammad Javed, CC BY-SA 4.0, from Pl@ntNet via GBIF 
Photo: No machine-readable author provided. Keisotyo assumed, CC BY-SA 4.0, from Wikimedia Commons Photo: Ondine, CC BY-SA 4.0, from Pl@ntNet via GBIF 
Photo: No machine-readable author provided. Keisotyo assumed, CC BY-SA 4.0, from Wikimedia Commons Photo: Alexandre Crégu, CC BY-SA 4.0, from Pl@ntNet via GBIF 
Photo: No machine-readable author provided. Keisotyo assumed, CC BY-SA 4.0, from Wikimedia Commons
More in Paspalum
- Bahia grassPaspalum notatumPoaceae
- Kodo milletPaspalum scrobiculatumPoaceae
- DallisgrassPaspalum dilatatumPoaceae
- HilograssPaspalum conjugatumPoaceae
- Seashore paspalumPaspalum vaginatumPoaceae
- Vasey's grassPaspalum urvilleiPoaceae
- Brownseed paspalumPaspalum plicatulumPoaceae
- Japanese paspalumPaspalum thunbergiiPoaceae
- TalquezalPaspalum virgatumPoaceae
- Pitchfork crowngrassPaspalum bifidumPoaceae
- Paspalum ceresiaPoaceae
- Field paspalumPaspalum laevePoaceae
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.