{
  "$schema": "https://botanai.app/schema/genus-v1.json",
  "schema_version": 1,
  "url": "https://botanai.app/genus/polytrichum/",
  "id": {
    "slug": "polytrichum"
  },
  "genus": "Polytrichum",
  "family": "Polytrichaceae",
  "family_url": "https://botanai.app/family/polytrichaceae/",
  "accepted_species": 39,
  "documented_species": 10,
  "species": [
    {
      "scientific_name": "Polytrichum angustifolium",
      "authorship": "Mitt.",
      "wfo": "wfo-0001160458",
      "slug": "polytrichum-angustifolium",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum appalachianum",
      "authorship": "L.E.Anderson",
      "wfo": "wfo-0001195192",
      "slug": "polytrichum-appalachianum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum brachymitrium",
      "authorship": "Müll.Hal.",
      "wfo": "wfo-0001160492",
      "slug": "polytrichum-brachymitrium",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum breviceps",
      "authorship": "Müll.Hal.",
      "wfo": "wfo-0001160499",
      "slug": "polytrichum-breviceps",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum circinnatulum",
      "authorship": "Müll.Hal.",
      "wfo": "wfo-0001160518",
      "slug": "polytrichum-circinnatulum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum commune",
      "authorship": "Hedw.",
      "wfo": "wfo-0001160523",
      "slug": "polytrichum-commune",
      "photographs_found": 749,
      "documented": true,
      "url": "https://botanai.app/plants/polytrichum-commune/"
    },
    {
      "scientific_name": "Polytrichum cupreum",
      "authorship": "G.Negri",
      "wfo": "wfo-0001170041",
      "slug": "polytrichum-cupreum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum densifolium",
      "authorship": "Wilson ex Mitt.",
      "wfo": "wfo-0001170050",
      "slug": "polytrichum-densifolium",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum elegans",
      "authorship": "Welw. & Duby",
      "wfo": "wfo-0001170056",
      "slug": "polytrichum-elegans",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum elongatum",
      "authorship": "P.Beauv.",
      "wfo": "wfo-0001170057",
      "slug": "polytrichum-elongatum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum ericoides",
      "authorship": "Hampe",
      "wfo": "wfo-0001170060",
      "slug": "polytrichum-ericoides",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum formosum",
      "authorship": "Hedw.",
      "wfo": "wfo-0001170068",
      "slug": "polytrichum-formosum",
      "photographs_found": 884,
      "documented": true,
      "url": "https://botanai.app/plants/polytrichum-formosum/"
    },
    {
      "scientific_name": "Polytrichum gracilisetum",
      "authorship": "Besch. ex Müll.Hal.",
      "wfo": "wfo-0001170095",
      "slug": "polytrichum-gracilisetum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum hyperboreum",
      "authorship": "R.Br.",
      "wfo": "wfo-0001170110",
      "slug": "polytrichum-hyperboreum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum jensenii",
      "authorship": "I.Hagen",
      "wfo": "wfo-0001170120",
      "slug": "polytrichum-jensenii",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum juniperellum",
      "authorship": "Müll.Hal.",
      "wfo": "wfo-0001170123",
      "slug": "polytrichum-juniperellum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum juniperinum",
      "authorship": "Hedw.",
      "wfo": "wfo-0001170127",
      "slug": "polytrichum-juniperinum",
      "photographs_found": 1655,
      "documented": true,
      "url": "https://botanai.app/plants/polytrichum-juniperinum/"
    },
    {
      "scientific_name": "Polytrichum longisetum",
      "authorship": "Sw. ex Brid.",
      "wfo": "wfo-0001170151",
      "slug": "polytrichum-longisetum",
      "photographs_found": 22,
      "documented": true,
      "url": "https://botanai.app/plants/polytrichum-longisetum/"
    },
    {
      "scientific_name": "Polytrichum microcephalum",
      "authorship": "Müll.Hal.",
      "wfo": "wfo-0001170166",
      "slug": "polytrichum-microcephalum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum micropyxis",
      "authorship": "Müll.Hal.",
      "wfo": "wfo-0001170170",
      "slug": "polytrichum-micropyxis",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum oerstedianum",
      "authorship": "Müll.Hal.",
      "wfo": "wfo-0001170202",
      "slug": "polytrichum-oerstedianum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum ohioense",
      "authorship": "Renauld & Cardot",
      "wfo": "wfo-0001170203",
      "slug": "polytrichum-ohioense",
      "photographs_found": 47,
      "documented": true,
      "url": "https://botanai.app/plants/polytrichum-ohioense/"
    },
    {
      "scientific_name": "Polytrichum pallidisetum",
      "authorship": "Funck",
      "wfo": "wfo-0001170208",
      "slug": "polytrichum-pallidisetum",
      "photographs_found": 4,
      "documented": true,
      "url": "https://botanai.app/plants/polytrichum-pallidisetum/"
    },
    {
      "scientific_name": "Polytrichum papillosum",
      "authorship": "Dyachenko",
      "wfo": "wfo-1000017548",
      "slug": "polytrichum-papillosum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum perigoniale",
      "authorship": "Michx.",
      "wfo": "wfo-0001170219",
      "slug": "polytrichum-perigoniale",
      "photographs_found": 4,
      "documented": true,
      "url": "https://botanai.app/plants/polytrichum-perigoniale/"
    },
    {
      "scientific_name": "Polytrichum piliferum",
      "authorship": "Hedw.",
      "wfo": "wfo-0001170225",
      "slug": "polytrichum-piliferum",
      "photographs_found": 909,
      "documented": true,
      "url": "https://botanai.app/plants/polytrichum-piliferum/"
    },
    {
      "scientific_name": "Polytrichum polakowskyi",
      "authorship": "Müll.Hal.",
      "wfo": "wfo-0001170240",
      "slug": "polytrichum-polakowskyi",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum recurvatum",
      "authorship": "Müll.Hal.",
      "wfo": "wfo-0001170260",
      "slug": "polytrichum-recurvatum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum recurvipilum",
      "authorship": "Müll.Hal.",
      "wfo": "wfo-0001170261",
      "slug": "polytrichum-recurvipilum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum stolonigerum",
      "authorship": "Müll.Hal.",
      "wfo": "wfo-0001170301",
      "slug": "polytrichum-stolonigerum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum strictum",
      "authorship": "Menzies ex Brid.",
      "wfo": "wfo-0001170302",
      "slug": "polytrichum-strictum",
      "photographs_found": 94,
      "documented": true,
      "url": "https://botanai.app/plants/polytrichum-strictum/"
    },
    {
      "scientific_name": "Polytrichum subpilosum",
      "authorship": "P.Beauv.",
      "wfo": "wfo-0001170317",
      "slug": "polytrichum-subpilosum",
      "photographs_found": 8,
      "documented": true,
      "url": "https://botanai.app/plants/polytrichum-subpilosum/"
    },
    {
      "scientific_name": "Polytrichum swartzii",
      "authorship": "Hartm.",
      "wfo": "wfo-0001170327",
      "slug": "polytrichum-swartzii",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum tonkinense",
      "authorship": "Thér. & R.Henry",
      "wfo": "wfo-0001170340",
      "slug": "polytrichum-tonkinense",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum torquatum",
      "authorship": "(Mitt. ex Osada & G.L.Sm.) N.E.Bell & Hyvönen",
      "wfo": "wfo-0001035615",
      "slug": "polytrichum-torquatum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum trachythecium",
      "authorship": "Müll.Hal.",
      "wfo": "wfo-0001170344",
      "slug": "polytrichum-trachythecium",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum vaginatum",
      "authorship": "Warnst.",
      "wfo": "wfo-0001170361",
      "slug": "polytrichum-vaginatum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum xanthopilum",
      "authorship": "Wilson ex Mitt.",
      "wfo": "wfo-0001170371",
      "slug": "polytrichum-xanthopilum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Polytrichum × stefureacii",
      "authorship": "Plăm.",
      "wfo": "wfo-0001187060",
      "slug": "polytrichum-stefureacii",
      "photographs_found": 0,
      "documented": false,
      "url": null
    }
  ],
  "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/polytrichum/"
  }
}