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  "last_modified": "2025-12-15",
  "id": {
    "slug": "echinochloa-stagnina",
    "wfo": "wfo-0000865427",
    "inat_taxon_id": 162194
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  "name": {
    "scientific": "Echinochloa stagnina",
    "authorship": "(Retz.) P.Beauv.",
    "genus": "Echinochloa",
    "epithet": "stagnina",
    "family": "Poaceae",
    "rank": "species",
    "taxonomic_status": "accepted",
    "accepted_according_to": "World Flora Online Plant List, 2026-06",
    "is_homonym": false,
    "published_in": "Ess. Agrostogr. : 161 (1812)",
    "protologue_url": "https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:399746-1",
    "common": {
      "preferred": "hippo grass",
      "english": [
        "hippo grass"
      ],
      "source": "wikidata"
    },
    "synonyms": [
      {
        "name": "Echinochloa barbata",
        "authorship": "Vanderyst"
      },
      {
        "name": "Echinochloa crus-galli var. sieberiana",
        "authorship": "(Asch. & Schweinf.) A.Chev."
      },
      {
        "name": "Echinochloa crus-galli var. stolonifera",
        "authorship": "(Schweinf. & Muschl.) A.Chev."
      },
      {
        "name": "Echinochloa crus-galli var. stoloniferum",
        "authorship": "(Schweinf. & Muschl.) A.Chev."
      },
      {
        "name": "Echinochloa hostii",
        "authorship": "Steven ex Link"
      },
      {
        "name": "Echinochloa lelievrei",
        "authorship": "(A.Chev.) Berhaut"
      },
      {
        "name": "Echinochloa malakuensis",
        "authorship": "Vanderyst"
      },
      {
        "name": "Echinochloa oryzetorum",
        "authorship": "(A.Chev.) A.Chev."
      },
      {
        "name": "Echinochloa scabra",
        "authorship": "Roem. & Schult."
      },
      {
        "name": "Oplismenus scaber",
        "authorship": "Kunth"
      },
      {
        "name": "Oplismenus stagninus",
        "authorship": "Kunth"
      },
      {
        "name": "Orthopogon stagninus",
        "authorship": "Spreng."
      },
      {
        "name": "Panicum burgu",
        "authorship": "A.Chev."
      },
      {
        "name": "Panicum burgu var. submuticum",
        "authorship": "(Franch.) A.Chev."
      },
      {
        "name": "Panicum crus-galli var. leiostachyum",
        "authorship": "Franch."
      },
      {
        "name": "Panicum crus-galli var. maximum",
        "authorship": "Franch."
      },
      {
        "name": "Panicum crus-galli var. sieberianum",
        "authorship": "Asch. & Schweinf."
      },
      {
        "name": "Panicum crus-galli var. stagninum",
        "authorship": "(Retz.) Trimen"
      },
      {
        "name": "Panicum crus-galli var. stagninum",
        "authorship": "Kuntze"
      },
      {
        "name": "Panicum crus-galli var. stoloniferum",
        "authorship": "Schweinf. & Muschl."
      },
      {
        "name": "Panicum crus-galli var. submuticum",
        "authorship": "Franch."
      },
      {
        "name": "Panicum galli",
        "authorship": "Thunb."
      },
      {
        "name": "Panicum lelieveri var. leiostachyum",
        "authorship": "(Franch.) A.Chev."
      },
      {
        "name": "Panicum lelievrei",
        "authorship": "A.Chev."
      },
      {
        "name": "Panicum oryzetorum",
        "authorship": "A.Chev."
      },
      {
        "name": "Panicum oryzetum",
        "authorship": "A.Chev."
      },
      {
        "name": "Panicum scabrum",
        "authorship": "Lam."
      },
      {
        "name": "Panicum scabrum subsp. burgu",
        "authorship": "(A.Chev.) A.Chev."
      },
      {
        "name": "Panicum scabrum subsp. lelievrei",
        "authorship": "A.Chev."
      },
      {
        "name": "Panicum scabrum subsp. oryzetorum",
        "authorship": "A.Chev."
      },
      {
        "name": "Panicum scabrum subsp. stagninum",
        "authorship": "(Retz.) A.Chev."
      },
      {
        "name": "Panicum scabrum var. franchetii",
        "authorship": "A.Chev."
      },
      {
        "name": "Panicum scabrum var. leiostachyum",
        "authorship": "(Franch.) A.Chev."
      },
      {
        "name": "Panicum scabrum var. submuticum",
        "authorship": "(Franch.) A.Chev."
      },
      {
        "name": "Panicum sieberianum",
        "authorship": "(Asch. & Schweinf.) Sickenb."
      },
      {
        "name": "Panicum stagninum",
        "authorship": "Retz."
      },
      {
        "name": "Panicum stagninum var. burgu",
        "authorship": "(A.Chev.) Chev."
      },
      {
        "name": "Panicum subaristatum",
        "authorship": "Peter"
      }
    ],
    "wikipedia": "https://en.wikipedia.org/wiki/Echinochloa_stagnina"
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      "retrieved": "2026-07-12"
    },
    {
      "name": "iNaturalist",
      "note": "photographs and flowering annotations, CC0 / CC BY / CC BY-SA only",
      "license": "per photograph",
      "url": "https://www.inaturalist.org/",
      "retrieved": "2026-06-27"
    },
    {
      "name": "Wikidata",
      "note": "common name (P1843), joined on the World Flora Online identifier (P7715)",
      "license": "CC0",
      "url": "https://www.wikidata.org/",
      "retrieved": "2026-07-13"
    },
    {
      "name": "Kew, World Checklist of Vascular Plants (WCVP v16)",
      "note": "native distribution by TDWG level-3 botanical country, and life form",
      "license": "CC BY 3.0",
      "url": "https://doi.org/10.15468/6h8ucr",
      "retrieved": "2026-06-04"
    }
  ],
  "gaps": [
    {
      "field": "care",
      "status": "not_published",
      "reason": "Not published anywhere on this site. Every care claim we could make cheaply would be an unsourced enum, which is what the previous version of this site did and why it was deleted."
    },
    {
      "field": "toxicity",
      "status": "not_published",
      "reason": "Not published. The widely copied list is a copyrighted compilation restricted to noncommercial use, and we will not scrape it. A sourced toxicity dataset is being built from primary literature and is not ready."
    },
    {
      "field": "botanical_review",
      "status": "not_sourced",
      "reason": "No page on this site has been reviewed by a named botanist. The determination label says so, on every page."
    },
    {
      "field": "climate_envelope",
      "status": "insufficient_evidence",
      "reason": "Fewer than 30 georeferenced research-grade observations of this taxon, which is too few to state a percentile range for the conditions it grows in. We would rather show nothing than a range computed from eight points in one county."
    },
    {
      "field": "hardiness_zone",
      "status": "not_published",
      "reason": "Not published for any species. A USDA hardiness zone is the average annual EXTREME minimum temperature, and we hold the mean daily minimum of the coldest month, which is a different quantity and typically about 16 C warmer. Presenting one as the other would place a plant several zones too warm, so we do not publish a zone at all."
    },
    {
      "field": "phenology",
      "status": "not_sourced",
      "reason": "No dated flowering annotations found for this taxon."
    }
  ],
  "license": {
    "data": "CC BY 4.0",
    "attribution": "BotanAI, https://botanai.app/plants/echinochloa-stagnina/",
    "note": "This document is licensed CC BY 4.0. The PHOTOGRAPHS it links are licensed individually and separately: each carries its own license and license_url, and those terms govern. Underlying taxonomy is CC0 (World Flora Online); native range is CC BY 3.0 (Kew)."
  }
}