{
  "$schema": "https://botanai.app/schema/genus-v1.json",
  "schema_version": 1,
  "url": "https://botanai.app/genus/rheum/",
  "id": {
    "slug": "rheum"
  },
  "genus": "Rheum",
  "family": "Polygonaceae",
  "family_url": "https://botanai.app/family/polygonaceae/",
  "accepted_species": 44,
  "documented_species": 8,
  "species": [
    {
      "scientific_name": "Rheum acuminatum",
      "authorship": "Hook.f. & Thomson",
      "wfo": "wfo-0001246338",
      "slug": "rheum-acuminatum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum alexandrae",
      "authorship": "Batalin",
      "wfo": "wfo-0001246370",
      "slug": "rheum-alexandrae",
      "photographs_found": 4,
      "documented": true,
      "url": "https://botanai.app/plants/rheum-alexandrae/"
    },
    {
      "scientific_name": "Rheum altaicum",
      "authorship": "Losinsk.",
      "wfo": "wfo-0001101651",
      "slug": "rheum-altaicum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum australe",
      "authorship": "D.Don",
      "wfo": "wfo-0001101425",
      "slug": "rheum-australe",
      "photographs_found": 4,
      "documented": true,
      "url": "https://botanai.app/plants/rheum-australe/"
    },
    {
      "scientific_name": "Rheum compactum",
      "authorship": "L.",
      "wfo": "wfo-0001101241",
      "slug": "rheum-compactum",
      "photographs_found": 38,
      "documented": true,
      "url": "https://botanai.app/plants/rheum-compactum/"
    },
    {
      "scientific_name": "Rheum delavayi",
      "authorship": "Franch.",
      "wfo": "wfo-0001246357",
      "slug": "rheum-delavayi",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum forrestii",
      "authorship": "Diels",
      "wfo": "wfo-0001101831",
      "slug": "rheum-forrestii",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum glabricaule",
      "authorship": "Sam.",
      "wfo": "wfo-0001246323",
      "slug": "rheum-glabricaule",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum globulosum",
      "authorship": "Gage",
      "wfo": "wfo-0001219328",
      "slug": "rheum-globulosum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum hotaoense",
      "authorship": "C.Y.Cheng & T.C.Kao",
      "wfo": "wfo-0001246313",
      "slug": "rheum-hotaoense",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum inopinatum",
      "authorship": "Prain",
      "wfo": "wfo-0001246355",
      "slug": "rheum-inopinatum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum kialense",
      "authorship": "Franch.",
      "wfo": "wfo-0001246345",
      "slug": "rheum-kialense",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum laciniatum",
      "authorship": "Prain",
      "wfo": "wfo-0001219326",
      "slug": "rheum-laciniatum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum lhasaense",
      "authorship": "A.J.Li & P.K.Hsiao",
      "wfo": "wfo-0001246319",
      "slug": "rheum-lhasaense",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum likiangense",
      "authorship": "Sam.",
      "wfo": "wfo-0001246316",
      "slug": "rheum-likiangense",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum lucidum",
      "authorship": "Losinsk.",
      "wfo": "wfo-0001101657",
      "slug": "rheum-lucidum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum macrocarpum",
      "authorship": "Losinsk.",
      "wfo": "wfo-0001101658",
      "slug": "rheum-macrocarpum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum maculatum",
      "authorship": "C.Y.Cheng & T.C.Kao",
      "wfo": "wfo-0001246339",
      "slug": "rheum-maculatum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum moorcroftianum",
      "authorship": "Royle",
      "wfo": "wfo-0001101660",
      "slug": "rheum-moorcroftianum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum nanum",
      "authorship": "Siev. ex Pall.",
      "wfo": "wfo-0001101661",
      "slug": "rheum-nanum",
      "photographs_found": 5,
      "documented": true,
      "url": "https://botanai.app/plants/rheum-nanum/"
    },
    {
      "scientific_name": "Rheum nobile",
      "authorship": "Hook.f. & Thomson",
      "wfo": "wfo-0001101426",
      "slug": "rheum-nobile",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum officinale",
      "authorship": "Baill.",
      "wfo": "wfo-0000404454",
      "slug": "rheum-officinale",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum palmatum",
      "authorship": "L.",
      "wfo": "wfo-0000404474",
      "slug": "rheum-palmatum",
      "photographs_found": 1,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum przewalskyi",
      "authorship": "Losinsk.",
      "wfo": "wfo-0001246366",
      "slug": "rheum-przewalskyi",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum pumilum",
      "authorship": "Maxim.",
      "wfo": "wfo-0001246356",
      "slug": "rheum-pumilum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum racemiferum",
      "authorship": "Maxim.",
      "wfo": "wfo-0001246352",
      "slug": "rheum-racemiferum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum reticulatum",
      "authorship": "Losinsk.",
      "wfo": "wfo-0001101666",
      "slug": "rheum-reticulatum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum rhabarbarum",
      "authorship": "L.",
      "wfo": "wfo-0000404478",
      "slug": "rheum-rhabarbarum",
      "photographs_found": 92,
      "documented": true,
      "url": "https://botanai.app/plants/rheum-rhabarbarum/"
    },
    {
      "scientific_name": "Rheum rhaponticum",
      "authorship": "L.",
      "wfo": "wfo-0000404466",
      "slug": "rheum-rhaponticum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum rhizostachyum",
      "authorship": "Schrenk",
      "wfo": "wfo-0001101667",
      "slug": "rheum-rhizostachyum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum rhomboideum",
      "authorship": "Losinsk.",
      "wfo": "wfo-0001246365",
      "slug": "rheum-rhomboideum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum ribes",
      "authorship": "L.",
      "wfo": "wfo-0001101668",
      "slug": "rheum-ribes",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum spiciforme",
      "authorship": "Royle",
      "wfo": "wfo-0001101670",
      "slug": "rheum-spiciforme",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum subacaule",
      "authorship": "Sam.",
      "wfo": "wfo-0001246359",
      "slug": "rheum-subacaule",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum sublanceolatum",
      "authorship": "C.Y.Cheng & T.C.Kao",
      "wfo": "wfo-0001246354",
      "slug": "rheum-sublanceolatum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum tanguticum",
      "authorship": "Maxim. ex Balf.",
      "wfo": "wfo-0000403594",
      "slug": "rheum-tanguticum",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum tataricum",
      "authorship": "L.f.",
      "wfo": "wfo-0000403596",
      "slug": "rheum-tataricum",
      "photographs_found": 135,
      "documented": true,
      "url": "https://botanai.app/plants/rheum-tataricum/"
    },
    {
      "scientific_name": "Rheum tibeticum",
      "authorship": "Maxim. ex Hook.f.",
      "wfo": "wfo-0001100874",
      "slug": "rheum-tibeticum",
      "photographs_found": 2,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum turkestanicum",
      "authorship": "Janischew.",
      "wfo": "wfo-0001101672",
      "slug": "rheum-turkestanicum",
      "photographs_found": 5,
      "documented": true,
      "url": "https://botanai.app/plants/rheum-turkestanicum/"
    },
    {
      "scientific_name": "Rheum uninerve",
      "authorship": "Maxim.",
      "wfo": "wfo-0001246360",
      "slug": "rheum-uninerve",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum webbianum",
      "authorship": "Royle",
      "wfo": "wfo-0001101732",
      "slug": "rheum-webbianum",
      "photographs_found": 6,
      "documented": true,
      "url": "https://botanai.app/plants/rheum-webbianum/"
    },
    {
      "scientific_name": "Rheum wittrockii",
      "authorship": "Lundstrom",
      "wfo": "wfo-0001101674",
      "slug": "rheum-wittrockii",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum yunnanense",
      "authorship": "Sam.",
      "wfo": "wfo-0001246342",
      "slug": "rheum-yunnanense",
      "photographs_found": 0,
      "documented": false,
      "url": null
    },
    {
      "scientific_name": "Rheum × hybridum",
      "authorship": "Murray",
      "wfo": "wfo-0000404461",
      "slug": "rheum-hybridum",
      "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/rheum/"
  }
}