{
  "schema_version": "1.0",
  "basis": "Editorial navigation from the cited warnings in each linked profile; not a measured risk ranking.",
  "groups": [
    {
      "title": "Serious ingestion hazards",
      "description": "Plants with serious poisoning warnings. Affected species and evidence strength differ; use the individual profile before drawing conclusions about a person or animal.",
      "plant_ids": [
        "poison-hemlock",
        "western-water-hemlock",
        "jimsonweed",
        "black-henbane",
        "meadow-death-camas",
        "african-rue",
        "bittersweet-nightshade",
        "western-whorled-milkweed",
        "hemp-dogbane",
        "silverleaf-nightshade",
        "tall-buttercup",
        "crownvetch"
      ]
    },
    {
      "title": "Pets, paws and skin contact",
      "description": "A route to awns, burs, sharp points and irritating plant contact, including poison-ivy oil carried on fur.",
      "plant_ids": [
        "foxtail-barley",
        "puncturevine",
        "common-burdock",
        "common-cocklebur",
        "myrtle-spurge",
        "cypress-spurge",
        "western-poison-ivy",
        "buffalobur",
        "wild-parsnip",
        "stinging-nettle",
        "spotted-spurge",
        "snow-on-the-mountain",
        "plains-pricklypear",
        "catchweed-bedstraw"
      ]
    },
    {
      "title": "Pasture, hay and livestock losses",
      "description": "For landowners and animal keepers: forage poisoning and injury deserve their own review. Livestock findings are not pet exposure limits.",
      "plant_ids": [
        "tall-larkspur",
        "low-larkspur",
        "halogeton",
        "johnsongrass",
        "tansy-ragwort",
        "russian-knapweed",
        "yellow-starthistle",
        "houndstongue",
        "white-locoweed",
        "kochia",
        "redroot-pigweed",
        "common-st-johnswort",
        "broom-snakeweed",
        "black-greasewood",
        "yellow-sweetclover",
        "white-sweetclover",
        "crownvetch"
      ]
    },
    {
      "title": "Dry grass, tumbleweeds and fire concerns",
      "description": "Read the profiles for the evidence about dry vegetation, tumbling plants and effects on land management.",
      "plant_ids": [
        "cheatgrass",
        "medusahead",
        "ventenata",
        "russian-thistle",
        "tumble-mustard"
      ]
    },
    {
      "title": "Persistent roots and habitat displacement",
      "description": "Plants whose spread or persistence can make restoration and routine garden management difficult. Methods depend on the site and confirmed identity.",
      "plant_ids": [
        "field-bindweed",
        "canada-thistle",
        "leafy-spurge",
        "japanese-knotweed",
        "bohemian-knotweed",
        "perennial-pepperweed",
        "tree-of-heaven",
        "russian-olive",
        "tamarisk",
        "yellow-nutsedge",
        "quackgrass",
        "giant-reed",
        "horseweed",
        "silverleaf-nightshade",
        "crownvetch"
      ]
    },
    {
      "title": "Waterways and aquatic habitats",
      "description": "Use the individual accounts to understand spread and identification before moving plants, water or equipment from an affected site.",
      "plant_ids": [
        "hydrilla",
        "giant-salvinia",
        "eurasian-watermilfoil",
        "parrotfeather",
        "flowering-rush",
        "purple-loosestrife",
        "yellow-flag-iris"
      ]
    },
    {
      "title": "Pollen and seasonal allergies",
      "description": "Ragweed profiles separate documented allergy concerns from species-specific questions still under research. This is not a local pollen forecast.",
      "plant_ids": [
        "common-ragweed",
        "giant-ragweed",
        "western-ragweed"
      ]
    }
  ]
}