{
  "$schema": "https://botanai.app/schema/genus-v1.json",
  "schema_version": 1,
  "url": "https://botanai.app/genus/najas/",
  "id": {
    "slug": "najas"
  },
  "genus": "Najas",
  "family": "Hydrocharitaceae",
  "family_url": "https://botanai.app/family/hydrocharitaceae/",
  "accepted_species": 41,
  "documented_species": 8,
  "species": [
    {
      "scientific_name": "Najas affinis",
      "authorship": "Rendle",
      "wfo": "wfo-0000769459",
      "slug": "najas-affinis",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas ancistrocarpa",
      "authorship": "A.Braun ex Magnus",
      "wfo": "wfo-0000769462",
      "slug": "najas-ancistrocarpa",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas arguta",
      "authorship": "Kunth",
      "wfo": "wfo-0000769464",
      "slug": "najas-arguta",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas australis",
      "authorship": "Bory ex Rendle",
      "wfo": "wfo-0000769468",
      "slug": "najas-australis",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas baldwinii",
      "authorship": "Horn",
      "wfo": "wfo-0000769469",
      "slug": "najas-baldwinii",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas brevistyla",
      "authorship": "Rendle",
      "wfo": "wfo-0000769470",
      "slug": "najas-brevistyla",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas browniana",
      "authorship": "Rendle",
      "wfo": "wfo-0000769472",
      "slug": "najas-browniana",
      "photographs_found": 3,
      "documented": true,
      "url": "https://botanai.app/plants/najas-browniana/"
    },
    {
      "scientific_name": "Najas canadensis",
      "authorship": "Michx.",
      "wfo": "wfo-0000769474",
      "slug": "najas-canadensis",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas chinensis",
      "authorship": "N.Z.Wang",
      "wfo": "wfo-0000769476",
      "slug": "najas-chinensis",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas conferta",
      "authorship": "(A.Braun) A.Braun",
      "wfo": "wfo-0000769477",
      "slug": "najas-conferta",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas faveolata",
      "authorship": "A.Br. ex Magnus",
      "wfo": "wfo-0001086531",
      "slug": "najas-faveolata",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas filifolia",
      "authorship": "R.R.Haynes",
      "wfo": "wfo-0000769480",
      "slug": "najas-filifolia",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas flexilis",
      "authorship": "(Willd.) Rostk. & W.L.E.Schmidt",
      "wfo": "wfo-0000769481",
      "slug": "najas-flexilis",
      "photographs_found": 17,
      "documented": true,
      "url": "https://botanai.app/plants/najas-flexilis/"
    },
    {
      "scientific_name": "Najas gracillima",
      "authorship": "(A.Braun ex Engelm.) Magnus",
      "wfo": "wfo-0000769491",
      "slug": "najas-gracillima",
      "photographs_found": 2,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas graminea",
      "authorship": "Delile",
      "wfo": "wfo-0000769492",
      "slug": "najas-graminea",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas grossareolata",
      "authorship": "L.Triest",
      "wfo": "wfo-0000769497",
      "slug": "najas-grossareolata",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas guadalupensis",
      "authorship": "(Spreng.) Magnus",
      "wfo": "wfo-0000769498",
      "slug": "najas-guadalupensis",
      "photographs_found": 35,
      "documented": true,
      "url": "https://botanai.app/plants/najas-guadalupensis/"
    },
    {
      "scientific_name": "Najas hagerupii",
      "authorship": "Horn",
      "wfo": "wfo-0000769507",
      "slug": "najas-hagerupii",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas halophila",
      "authorship": "L.Triest",
      "wfo": "wfo-0000769508",
      "slug": "najas-halophila",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas heteromorpha",
      "authorship": "Griff. ex Voigt",
      "wfo": "wfo-0000771118",
      "slug": "najas-heteromorpha",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas horrida",
      "authorship": "A.Braun ex Magnus",
      "wfo": "wfo-0000769510",
      "slug": "najas-horrida",
      "photographs_found": 17,
      "documented": true,
      "url": "https://botanai.app/plants/najas-horrida/"
    },
    {
      "scientific_name": "Najas indica",
      "authorship": "(Willd.) Cham.",
      "wfo": "wfo-0000769512",
      "slug": "najas-indica",
      "photographs_found": 6,
      "documented": true,
      "url": "https://botanai.app/plants/najas-indica/"
    },
    {
      "scientific_name": "Najas kurziana",
      "authorship": "Rendle",
      "wfo": "wfo-0000769519",
      "slug": "najas-kurziana",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas madagascariensis",
      "authorship": "Rendle",
      "wfo": "wfo-0000769527",
      "slug": "najas-madagascariensis",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas major",
      "authorship": "All.",
      "wfo": "wfo-0000769528",
      "slug": "najas-major",
      "photographs_found": 1,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas malesiana",
      "authorship": "W.J.de Wilde",
      "wfo": "wfo-0000769530",
      "slug": "najas-malesiana",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas marina",
      "authorship": "L.",
      "wfo": "wfo-0000769531",
      "slug": "najas-marina",
      "photographs_found": 78,
      "documented": true,
      "url": "https://botanai.app/plants/najas-marina/"
    },
    {
      "scientific_name": "Najas minor",
      "authorship": "All.",
      "wfo": "wfo-0000769553",
      "slug": "najas-minor",
      "photographs_found": 34,
      "documented": true,
      "url": "https://botanai.app/plants/najas-minor/"
    },
    {
      "scientific_name": "Najas oguraensis",
      "authorship": "Miki",
      "wfo": "wfo-0000769563",
      "slug": "najas-oguraensis",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas pectinata",
      "authorship": "Magn. ex Ascherson & Schweinfurth",
      "wfo": "wfo-0001086524",
      "slug": "najas-pectinata-magn-ex-ascherson-schweinfurth",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas pectinata",
      "authorship": "(Parl.) Magnus",
      "wfo": "wfo-0000769567",
      "slug": "najas-pectinata-parl-magnus",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas pseudogracillima",
      "authorship": "L.Triest",
      "wfo": "wfo-0000769571",
      "slug": "najas-pseudogracillima",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas rigida",
      "authorship": "Griff.",
      "wfo": "wfo-0000769574",
      "slug": "najas-rigida",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas schweinfurthii",
      "authorship": "Magnus",
      "wfo": "wfo-0000769575",
      "slug": "najas-schweinfurthii",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas tenuicaulis",
      "authorship": "Miki",
      "wfo": "wfo-0000769582",
      "slug": "najas-tenuicaulis",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas tenuifolia",
      "authorship": "R.Br.",
      "wfo": "wfo-0000769583",
      "slug": "najas-tenuifolia",
      "photographs_found": 1,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas tenuis",
      "authorship": "Magnus",
      "wfo": "wfo-0000769585",
      "slug": "najas-tenuis",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas tenuissima",
      "authorship": "(A.Braun ex Magnus) Magnus",
      "wfo": "wfo-0000770346",
      "slug": "najas-tenuissima",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas testui",
      "authorship": "Rendle",
      "wfo": "wfo-0000769588",
      "slug": "najas-testui",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas welwitschii",
      "authorship": "Rendle",
      "wfo": "wfo-0000769592",
      "slug": "najas-welwitschii",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Najas wrightiana",
      "authorship": "A.Braun",
      "wfo": "wfo-0000769593",
      "slug": "najas-wrightiana",
      "photographs_found": 10,
      "documented": true,
      "url": "https://botanai.app/plants/najas-wrightiana/"
    }
  ],
  "evidence_gate": {
    "rule": "at least 3 photographs licensed for commercial use",
    "rationale": "This site is commercial, so it can only publish photographs licensed for commercial use. Roughly three quarters of the photographs on iNaturalist are CC BY-NC, which excludes them. A species below the gate is listed here rather than given a page of its own."
  },
  "sources": [
    {
      "name": "World Flora Online Plant List",
      "note": "accepted names, authorities, classification",
      "license": "CC0",
      "url": "https://www.worldfloraonline.org/",
      "retrieved": "2026-07-12"
    }
  ],
  "license": {
    "data": "CC BY 4.0",
    "attribution": "BotanAI, https://botanai.app/genus/najas/"
  }
}