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  "url": "https://botanai.app/plants/polytrichastrum-alpinum/",
  "last_modified": "2026-06-03",
  "id": {
    "slug": "polytrichastrum-alpinum",
    "wfo": "wfo-0001186706",
    "inat_taxon_id": 167286
  },
  "name": {
    "scientific": "Polytrichastrum alpinum",
    "authorship": "(Hedw.) G.L.Sm.",
    "genus": "Polytrichastrum",
    "epithet": "alpinum",
    "family": "Polytrichaceae",
    "rank": "species",
    "taxonomic_status": "accepted",
    "accepted_according_to": "World Flora Online Plant List, 2026-06",
    "is_homonym": false,
    "published_in": "Mem. New York Bot. Gard. 21(3): 37. 1971.",
    "protologue_url": "https://www.bryonames.org/",
    "common": {
      "preferred": "alpine polytrichastrum moss",
      "english": [
        "alpine polytrichastrum moss"
      ],
      "source": "wikidata"
    },
    "synonyms": [
      {
        "name": "Pogonatum alpinum",
        "authorship": "(Hedw.) Röhl."
      },
      {
        "name": "Pogonatum alpinum f. austrogeorgicum",
        "authorship": "(Müll.Hal.) Cardot"
      },
      {
        "name": "Pogonatum alpinum f. elatum",
        "authorship": "Cardot"
      },
      {
        "name": "Pogonatum alpinum f. nanocephalum",
        "authorship": "(Müll.Hal.) Cardot"
      },
      {
        "name": "Pogonatum alpinum f. plurirameum",
        "authorship": "(Müll.Hal.) Cardot"
      },
      {
        "name": "Pogonatum alpinum f. timmioides",
        "authorship": "(Müll.Hal.) Cardot"
      },
      {
        "name": "Pogonatum alpinum subsp. macounii",
        "authorship": "(Kindb.) Perss."
      },
      {
        "name": "Pogonatum alpinum var. alpinum",
        "authorship": null
      },
      {
        "name": "Pogonatum alpinum var. arcticum",
        "authorship": "(Sw. ex Brid.) Brid."
      },
      {
        "name": "Pogonatum alpinum var. brevifolium",
        "authorship": "(R.Br.) Brid."
      },
      {
        "name": "Pogonatum alpinum var. campanulatum",
        "authorship": "(Hornsch.) Bruch & Schimp."
      },
      {
        "name": "Pogonatum alpinum var. furcatum",
        "authorship": "(Hornsch.) Paris"
      },
      {
        "name": "Pogonatum alpinum var. macounii",
        "authorship": "(Kindb.) Cardot & Thér."
      },
      {
        "name": "Pogonatum alpinum var. microdontium",
        "authorship": "(Kindb.) Macoun & Kindb."
      },
      {
        "name": "Pogonatum alpinum var. simplex",
        "authorship": "Schimp."
      },
      {
        "name": "Pogonatum alpinum var. sylvaticum",
        "authorship": "(Menzies) Lindb."
      },
      {
        "name": "Pogonatum ambiguum",
        "authorship": "(Michx.) P.Beauv."
      },
      {
        "name": "Pogonatum arcticum",
        "authorship": "(Sw. ex Brid.) P.Beauv."
      },
      {
        "name": "Pogonatum austroalpinum",
        "authorship": "(Müll.Hal.) Paris"
      },
      {
        "name": "Pogonatum austrogeorgicum",
        "authorship": "(Müll.Hal.) Paris"
      },
      {
        "name": "Pogonatum campanulatum",
        "authorship": "(Hornsch.) Brid."
      },
      {
        "name": "Pogonatum fasciculatum",
        "authorship": "(Michx.) P.Beauv."
      },
      {
        "name": "Pogonatum furcatum",
        "authorship": "(Hornsch.) Brid."
      },
      {
        "name": "Pogonatum macounii",
        "authorship": "(Kindb.) Macoun & Kindb."
      },
      {
        "name": "Pogonatum norwegicum",
        "authorship": "(Hedw.) P.Beauv."
      },
      {
        "name": "Pogonatum oederi",
        "authorship": "P.Beauv."
      },
      {
        "name": "Pogonatum polare",
        "authorship": "(Müll.Hal.) A.Jaeger"
      },
      {
        "name": "Pogonatum pseudoalpinum",
        "authorship": "(Müll.Hal.) A.Jaeger"
      },
      {
        "name": "Pogonatum pylaesii",
        "authorship": "Brid."
      },
      {
        "name": "Pogonatum urnigerum var. fasciculatum",
        "authorship": "(Michx.) Brid."
      },
      {
        "name": "Pogonatum vanhoeffenii",
        "authorship": "(Kindb.) Paris"
      },
      {
        "name": "Polytrichastrum alpinum var. brevifolium",
        "authorship": "(R.Br.) Brassard"
      },
      {
        "name": "Polytrichastrum norwegicum",
        "authorship": "(Hedw.) Schljakov"
      },
      {
        "name": "Polytrichum alpinum",
        "authorship": "Hedw."
      },
      {
        "name": "Polytrichum alpinum f. flavisetum",
        "authorship": "(Györffy) Podp."
      },
      {
        "name": "Polytrichum alpinum subsp. brevifolium",
        "authorship": "(R.Br.) Kindb."
      },
      {
        "name": "Polytrichum alpinum subsp. rohlenae",
        "authorship": "Vilh."
      },
      {
        "name": "Polytrichum alpinum var. ambiguum",
        "authorship": "(Michx.) Bom. & Broth."
      },
      {
        "name": "Polytrichum alpinum var. angustifolium",
        "authorship": "Lindb."
      },
      {
        "name": "Polytrichum alpinum var. arcticum",
        "authorship": "(Sw. ex Brid.) Wahlenb."
      },
      {
        "name": "Polytrichum alpinum var. brevifolium",
        "authorship": "(R.Br.) Müll.Hal."
      },
      {
        "name": "Polytrichum alpinum var. campanulatum",
        "authorship": "(Hornsch.) Müll.Hal."
      },
      {
        "name": "Polytrichum alpinum var. cylindricum",
        "authorship": "Lindb."
      },
      {
        "name": "Polytrichum alpinum var. flavisetum",
        "authorship": "Györffy"
      },
      {
        "name": "Polytrichum alpinum var. fragariforme",
        "authorship": "W.X.Xu & R.L.Xiong"
      },
      {
        "name": "Polytrichum alpinum var. furcatum",
        "authorship": "(Hornsch.) Müll.Hal."
      },
      {
        "name": "Polytrichum alpinum var. integrifolium",
        "authorship": "Cardot & Broth."
      },
      {
        "name": "Polytrichum alpinum var. macounii",
        "authorship": "(Kindb.) M.Saito"
      },
      {
        "name": "Polytrichum alpinum var. matumurae",
        "authorship": "Ihsiba"
      },
      {
        "name": "Polytrichum alpinum var. microdontium",
        "authorship": "Kindb."
      },
      {
        "name": "Polytrichum alpinum var. moldavicum",
        "authorship": "Papp"
      },
      {
        "name": "Polytrichum alpinum var. piriforme",
        "authorship": "J.Froehl."
      },
      {
        "name": "Polytrichum alpinum var. polare",
        "authorship": "(Müll.Hal.) I.Hagen"
      },
      {
        "name": "Polytrichum alpinum var. simplex",
        "authorship": "(Schimp.) Limpr."
      },
      {
        "name": "Polytrichum alpinum var. sylvaticum",
        "authorship": "(Menzies) Lindb."
      },
      {
        "name": "Polytrichum alpinum var. voraginum",
        "authorship": "H.A.Möller"
      },
      {
        "name": "Polytrichum ambiguum",
        "authorship": "Michx."
      },
      {
        "name": "Polytrichum arcticum",
        "authorship": "Sw. ex Brid."
      },
      {
        "name": "Polytrichum austroalpinum",
        "authorship": "Müll.Hal."
      },
      {
        "name": "Polytrichum austrogeorgicum",
        "authorship": "Müll.Hal."
      },
      {
        "name": "Polytrichum brevifolium",
        "authorship": "R.Br."
      },
      {
        "name": "Polytrichum campanulatum",
        "authorship": "Hornsch."
      },
      {
        "name": "Polytrichum crassisetum",
        "authorship": "DC."
      },
      {
        "name": "Polytrichum fasciculatum",
        "authorship": "Michx."
      },
      {
        "name": "Polytrichum ferrugineum",
        "authorship": "Brid."
      },
      {
        "name": "Polytrichum furcatum",
        "authorship": "Hornsch."
      },
      {
        "name": "Polytrichum helveticum",
        "authorship": "(DC.) Schleich. ex Sw."
      },
      {
        "name": "Polytrichum macounii",
        "authorship": "Kindb."
      },
      {
        "name": "Polytrichum microdontium",
        "authorship": "(Kindb.) Kindb."
      },
      {
        "name": "Polytrichum nanocephalum",
        "authorship": "Müll.Hal."
      },
      {
        "name": "Polytrichum norwegicum",
        "authorship": "Hedw."
      },
      {
        "name": "Polytrichum obliquirostre",
        "authorship": "Müll.Hal."
      },
      {
        "name": "Polytrichum oederi",
        "authorship": "Brid. ex P.Beauv."
      },
      {
        "name": "Polytrichum plurirameum",
        "authorship": "Müll.Hal."
      },
      {
        "name": "Polytrichum polare",
        "authorship": "Müll.Hal."
      },
      {
        "name": "Polytrichum pseudoalpinum",
        "authorship": "Müll.Hal."
      },
      {
        "name": "Polytrichum septentrionale var. hyperboreum",
        "authorship": "Sw."
      },
      {
        "name": "Polytrichum septentrionale var. norwegicum",
        "authorship": "(Hedw.) Sw."
      },
      {
        "name": "Polytrichum strictum var. helveticum",
        "authorship": "DC."
      },
      {
        "name": "Polytrichum sylvaticum",
        "authorship": "Menzies"
      },
      {
        "name": "Polytrichum timmioides",
        "authorship": "Müll.Hal."
      },
      {
        "name": "Polytrichum urnigerum var. fasciculatum",
        "authorship": "(Michx.) Chevall."
      },
      {
        "name": "Polytrichum vanhoeffenii",
        "authorship": "Kindb."
      }
    ],
    "wikipedia": "https://en.wikipedia.org/wiki/Polytrichastrum_alpinum"
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    },
    "in_accuracy_benchmark": false,
    "benchmark_url": "https://botanai.app/accuracy/",
    "confused_with": []
  },
  "sources": [
    {
      "name": "World Flora Online Plant List",
      "note": "accepted name, authority, classification",
      "license": "CC0",
      "url": "https://www.worldfloraonline.org/",
      "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"
    }
  ],
  "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": "native_range",
      "status": "not_sourced",
      "reason": "Kew's World Checklist of Vascular Plants does not cover this taxon."
    },
    {
      "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/polytrichastrum-alpinum/",
    "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)."
  }
}