{
  "$schema": "https://botanai.app/schema/genus-v1.json",
  "schema_version": 1,
  "url": "https://botanai.app/genus/arnica/",
  "id": {
    "slug": "arnica"
  },
  "genus": "Arnica",
  "family": "Asteraceae",
  "family_url": "https://botanai.app/family/asteraceae/",
  "accepted_species": 33,
  "documented_species": 23,
  "species": [
    {
      "scientific_name": "Arnica acaulis",
      "authorship": "(Walter) Britton, Sterns & Poggenb.",
      "wfo": "wfo-0000132307",
      "slug": "arnica-acaulis",
      "photographs_found": 105,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-acaulis/"
    },
    {
      "scientific_name": "Arnica angustifolia",
      "authorship": "Vahl",
      "wfo": "wfo-0000010842",
      "slug": "arnica-angustifolia",
      "photographs_found": 37,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-angustifolia/"
    },
    {
      "scientific_name": "Arnica attenuata",
      "authorship": "(Greene) Maguire",
      "wfo": "wfo-0000128597",
      "slug": "arnica-attenuata",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Arnica cernua",
      "authorship": "Howell",
      "wfo": "wfo-0000064902",
      "slug": "arnica-cernua",
      "photographs_found": 12,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-cernua/"
    },
    {
      "scientific_name": "Arnica chamissonis",
      "authorship": "Less.",
      "wfo": "wfo-0000120344",
      "slug": "arnica-chamissonis",
      "photographs_found": 36,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-chamissonis/"
    },
    {
      "scientific_name": "Arnica cordifolia",
      "authorship": "Hook.",
      "wfo": "wfo-0000081008",
      "slug": "arnica-cordifolia",
      "photographs_found": 486,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-cordifolia/"
    },
    {
      "scientific_name": "Arnica dealbata",
      "authorship": "(A.Gray) B.G.Baldwin",
      "wfo": "wfo-0000024144",
      "slug": "arnica-dealbata",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Arnica denudata",
      "authorship": "Greene",
      "wfo": "wfo-0000007468",
      "slug": "arnica-denudata",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Arnica discoidea",
      "authorship": "Benth.",
      "wfo": "wfo-0000086917",
      "slug": "arnica-discoidea",
      "photographs_found": 165,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-discoidea/"
    },
    {
      "scientific_name": "Arnica fulgens",
      "authorship": "Pursh",
      "wfo": "wfo-0000009027",
      "slug": "arnica-fulgens",
      "photographs_found": 19,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-fulgens/"
    },
    {
      "scientific_name": "Arnica gracilis",
      "authorship": "Rydb.",
      "wfo": "wfo-0000032766",
      "slug": "arnica-gracilis",
      "photographs_found": 8,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-gracilis/"
    },
    {
      "scientific_name": "Arnica griscomii",
      "authorship": "Fernald",
      "wfo": "wfo-0000046335",
      "slug": "arnica-griscomii",
      "photographs_found": 16,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-griscomii/"
    },
    {
      "scientific_name": "Arnica intermedia",
      "authorship": "Turcz.",
      "wfo": "wfo-0000063814",
      "slug": "arnica-intermedia",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Arnica lanceolata",
      "authorship": "Nutt.",
      "wfo": "wfo-0000034312",
      "slug": "arnica-lanceolata",
      "photographs_found": 14,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-lanceolata/"
    },
    {
      "scientific_name": "Arnica latifolia",
      "authorship": "Bong.",
      "wfo": "wfo-0000006516",
      "slug": "arnica-latifolia",
      "photographs_found": 168,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-latifolia/"
    },
    {
      "scientific_name": "Arnica lessingii",
      "authorship": "Greene",
      "wfo": "wfo-0000134389",
      "slug": "arnica-lessingii",
      "photographs_found": 17,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-lessingii/"
    },
    {
      "scientific_name": "Arnica lonchophylla",
      "authorship": "Greene",
      "wfo": "wfo-0000011187",
      "slug": "arnica-lonchophylla",
      "photographs_found": 12,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-lonchophylla/"
    },
    {
      "scientific_name": "Arnica longifolia",
      "authorship": "D.C.Eaton",
      "wfo": "wfo-0000004402",
      "slug": "arnica-longifolia",
      "photographs_found": 29,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-longifolia/"
    },
    {
      "scientific_name": "Arnica louiseana",
      "authorship": "Farr",
      "wfo": "wfo-0000013944",
      "slug": "arnica-louiseana",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Arnica mallotopus",
      "authorship": "Makino",
      "wfo": "wfo-0000001224",
      "slug": "arnica-mallotopus",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Arnica mollis",
      "authorship": "Hook.",
      "wfo": "wfo-0000017395",
      "slug": "arnica-mollis",
      "photographs_found": 24,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-mollis/"
    },
    {
      "scientific_name": "Arnica montana",
      "authorship": "L.",
      "wfo": "wfo-0000003482",
      "slug": "arnica-montana",
      "photographs_found": 355,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-montana/"
    },
    {
      "scientific_name": "Arnica nevadensis",
      "authorship": "A.Gray",
      "wfo": "wfo-0000091109",
      "slug": "arnica-nevadensis",
      "photographs_found": 1,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Arnica ovata",
      "authorship": "Greene",
      "wfo": "wfo-0000029292",
      "slug": "arnica-ovata",
      "photographs_found": 1,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Arnica parryi",
      "authorship": "A.Gray",
      "wfo": "wfo-0000017168",
      "slug": "arnica-parryi",
      "photographs_found": 25,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-parryi/"
    },
    {
      "scientific_name": "Arnica porsildiorum",
      "authorship": "B.Boivin",
      "wfo": "wfo-0000059186",
      "slug": "arnica-porsildiorum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Arnica rydbergii",
      "authorship": "Greene",
      "wfo": "wfo-0000083155",
      "slug": "arnica-rydbergii",
      "photographs_found": 13,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-rydbergii/"
    },
    {
      "scientific_name": "Arnica sachalinensis",
      "authorship": "(Regel) A.Gray",
      "wfo": "wfo-0000125268",
      "slug": "arnica-sachalinensis",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Arnica sororia",
      "authorship": "Greene",
      "wfo": "wfo-0000000926",
      "slug": "arnica-sororia",
      "photographs_found": 8,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-sororia/"
    },
    {
      "scientific_name": "Arnica spathulata",
      "authorship": "Greene",
      "wfo": "wfo-0000079216",
      "slug": "arnica-spathulata",
      "photographs_found": 15,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-spathulata/"
    },
    {
      "scientific_name": "Arnica unalaschcensis",
      "authorship": "Less.",
      "wfo": "wfo-0000006907",
      "slug": "arnica-unalaschcensis",
      "photographs_found": 9,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-unalaschcensis/"
    },
    {
      "scientific_name": "Arnica venosa",
      "authorship": "H.M.Hall",
      "wfo": "wfo-0000139148",
      "slug": "arnica-venosa",
      "photographs_found": 9,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-venosa/"
    },
    {
      "scientific_name": "Arnica viscosa",
      "authorship": "A.Gray",
      "wfo": "wfo-0000015907",
      "slug": "arnica-viscosa",
      "photographs_found": 19,
      "documented": true,
      "url": "https://botanai.app/plants/arnica-viscosa/"
    }
  ],
  "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/arnica/"
  }
}