Echinochloa walteri(Pursh) A.Heller

coast cockspur grass

WFO wfo-0000865436 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Echinochloa walteri, photographed by Navin Sasikumar
fig. a Navin Sasikumar, CC BY 4.0 / 2021-08-21 / obs. 152454073
Echinochloa walteri, photographed by Darren Oh
fig. b Darren Oh, CC BY-SA 4.0 / obs. 145945815
Echinochloa walteri, photographed by Reuven Martin
fig. c Reuven Martin, CC0 1.0 / obs. 94712307
Echinochloa walteri, photographed by Dan Johnson
fig. d Dan Johnson, CC BY 4.0 / obs. 49283588
Echinochloa walteri, photographed by Travis G
fig. e Travis G, CC BY 4.0 / obs. 48882044
Echinochloa walteri, photographed by Ben Meredyk
fig. f Ben Meredyk, CC BY 4.0 / obs. 46285935
Echinochloa walteri, photographed by Zihao Wang
fig. g Zihao Wang, CC BY 4.0 / obs. 94470521
Echinochloa walteri, photographed by kent ozment
fig. h kent ozment, CC0 1.0 / obs. 24372541

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 45 botanical countries

Regions where Echinochloa walteri is native: Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Florida, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maryland, Massachusetts, Mexico Gulf, Mexico Northeast, Mexico Southeast, Michigan, Minnesota, Mississippi, Missouri, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma, Ontario, Pennsylvania, Québec, Rhode I., South Carolina, Tennessee, Texas, Virginia, West Virginia, Wisconsin, Cayman Is., Cuba, Dominican Republic, El Salvador, Guatemala, Haiti, Honduras, Jamaica AlabamaArkansasConnecticutFloridaGeorgiaIllinoisIndianaIowaKentuckyLouisianaMarylandMassachusettsMexico GulfMexico NortheastMexico SoutheastMichiganMinnesotaMississippiMissouriNew HampshireNew JerseyNew YorkNorth CarolinaOhioOklahomaOntarioPennsylvaniaQuébecSouth CarolinaTennesseeTexasVirginiaWest VirginiaWisconsinCubaDominican RepublicEl SalvadorGuatemalaHaitiHondurasJamaica DelawareDistrict of ColumbiaRhode I.Cayman Is.
Native distribution of Echinochloa walteri, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Alabama ALA NORTHERN AMERICA
Arkansas ARK
Connecticut CNT
Delaware DEL
District of Columbia WDC
Florida FLA
Georgia GEO
Illinois ILL
Indiana INI
Iowa IOW
Kentucky KTY
Louisiana LOU
Maryland MRY
Massachusetts MAS
Mexico Gulf MXG
Mexico Northeast MXE
Mexico Southeast MXT
Michigan MIC
Minnesota MIN
Mississippi MSI
Missouri MSO
New Hampshire NWH
New Jersey NWJ
New York NWY
North Carolina NCA
Ohio OHI
Oklahoma OKL
Ontario ONT
Pennsylvania PEN
Québec QUE
Rhode I. RHO
South Carolina SCA
Tennessee TEN
Texas TEX
Virginia VRG
West Virginia WVA
Wisconsin WIS
Cayman Is. CAY SOUTHERN AMERICA
Cuba CUB
Dominican Republic DOM
El Salvador ELS
Guatemala GUA
Haiti HAI
Honduras HON
Jamaica JAM

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Also published as 17 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Echinochloa crus-galli subvar. laevigata (Wiegand) Farw.
  • Echinochloa crus-galli var. hispida (Elliott) Farw.
  • Echinochloa longiaristata Nash
  • Echinochloa walteri f. breviseta Fernald & Griscom
  • Echinochloa walteri f. laevigata Wiegand
  • Echinochloa walteri f. walteri
  • Echinochloa walteri var. laevigata (Wiegand) S.R.Hill
  • Oplismenus crus-galli var. hispidus (Elliott) Alph.Wood
  • Oplismenus hispidus (Elliott) Alph.Wood
  • Oplismenus longisetus Kunth
  • Orthopogon hispidus (Elliott) Spreng.
  • Panicum crus-galli var. walteri (Pursh) Farw.
  • Panicum crusgalli var. hispidum Elliott
  • Panicum hirtellum Walter
  • Panicum hispidum (Elliott) Muhl.
  • Panicum longisetum Torr.
  • Panicum walteri Pursh

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.