Echinodorus berteroi(Spreng.) Fassett

upright burhead

WFO wfo-0000766369 Accepted WFO 2026-06 8 photographs CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Echinodorus berteroi, photographed by johnyochum
fig. a johnyochum, CC BY 4.0 / 2022-05-01 / obs. 193199067
Echinodorus berteroi, photographed by Eric Knight
fig. b Eric Knight, CC BY 4.0 / obs. 149969569
Echinodorus berteroi, photographed by Amy
fig. c Amy, CC BY 4.0 / obs. 97601935
Echinodorus berteroi, photographed by paulexcoff
fig. d paulexcoff, CC BY-SA 4.0 / obs. 107106330
Echinodorus berteroi, photographed by Eric Knight
fig. e Eric Knight, CC BY 4.0 / obs. 84158817
Echinodorus berteroi, photographed by Bill Levine
fig. f Bill Levine, CC BY 4.0 / obs. 38870322
Echinodorus berteroi, photographed by Bill Levine
fig. g Bill Levine, CC BY 4.0 / obs. 29873557
Echinodorus berteroi, photographed by Amy Huie
fig. h Amy Huie, CC BY 4.0 / obs. 22920120

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 41 botanical countries

Regions where Echinodorus berteroi is native: Arkansas, California, Florida, Illinois, Iowa, Kansas, Kentucky, Louisiana, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Missouri, Nebraska, Nevada, New Mexico, Ohio, Oklahoma, South Dakota, Tennessee, Texas, Utah, Wisconsin, Argentina South, Bahamas, Bolivia, Cuba, Dominican Republic, Ecuador, Guyana, Haiti, Jamaica, Leeward Is., Netherlands Antilles, Paraguay, Peru, Puerto Rico, Turks-Caicos Is., Venezuela, Windward Is. ArkansasCaliforniaFloridaIllinoisIowaKansasKentuckyLouisianaMexico GulfMexico NortheastMexico NorthwestMexico SoutheastMexico SouthwestMissouriNebraskaNevadaNew MexicoOhioOklahomaSouth DakotaTennesseeTexasUtahWisconsinArgentina SouthBoliviaCubaDominican RepublicEcuadorGuyanaHaitiJamaicaParaguayPeruPuerto RicoVenezuela BahamasLeeward Is.Netherlands AntillesTurks-Caicos Is.Windward Is.
Native distribution of Echinodorus berteroi, 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
Arkansas ARK NORTHERN AMERICA
California CAL
Florida FLA
Illinois ILL
Iowa IOW
Kansas KAN
Kentucky KTY
Louisiana LOU
Mexico Gulf MXG
Mexico Northeast MXE
Mexico Northwest MXN
Mexico Southeast MXT
Mexico Southwest MXS
Missouri MSO
Nebraska NEB
Nevada NEV
New Mexico NWM
Ohio OHI
Oklahoma OKL
South Dakota SDA
Tennessee TEN
Texas TEX
Utah UTA
Wisconsin WIS
Argentina South AGS SOUTHERN AMERICA
Bahamas BAH
Bolivia BOL
Cuba CUB
Dominican Republic DOM
Ecuador ECU
Guyana GUY
Haiti HAI
Jamaica JAM
Leeward Is. LEE
Netherlands Antilles NLA
Paraguay PAR
Peru PER
Puerto Rico PUE
Turks-Caicos Is. TCI
Venezuela VEN
Windward Is. WIN

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.

Flowering 123 in flower of 156 examined

Peak flowering in Jan. Each bar is the share of Echinodorus berteroi observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 123 of 156 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Also published as 20 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.

  • Alisma berteroanum Balb.
  • Alisma berteroi Spreng.
  • Alisma macrophyllum var. minus Seub.
  • Alisma rostratum Nutt.
  • Alisma sprengelii Rich. ex Kunth
  • Echinodorus berteroi subsp. patagonicus (Speg.) Rataj
  • Echinodorus berteroi var. berteroi
  • Echinodorus berteroi var. lanceolatus (Engelm. ex S.Watson & Coult.) Fernald
  • Echinodorus berteroi var. lanceolatus (Engelm.) Fassett
  • Echinodorus berteroi var. patagonicus (Speg.) Rataj
  • Echinodorus cordifolius f. lanceolatus (Engelm. ex S.Watson & J.M.Coult.) Fernald
  • Echinodorus cordifolius var. berteroanus (Balb. ex Schult. & Schult.f.) Griseb.
  • Echinodorus cordifolius var. lanceolatus (Engelm. ex S.Watson & J.M.Coult.) Mack. & Bush
  • Echinodorus longilineatus Rataj
  • Echinodorus patagonicus Speg.
  • Echinodorus radicans (Nutt.) Engelm. ex A.Gray
  • Echinodorus rostratus (Nutt.) Engelm.
  • Echinodorus rostratus f. lanceolatus (Engelm. ex S.Watson & J.M.Coult.) Fernald
  • Echinodorus rostratus var. lanceolatus Engelm. ex S.Watson & J.M.Coult.
  • Sagittaria rostrata Kuntze

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.