{
  "variants": {
    "":[ 
      {
      "model": "minecraft:block/fern"
    },
    {
      "model": "minecraft:block/fern1"
    },
    {
      "model": "minecraft:block/large_fern_top1"
    },
    {
      "model": "minecraft:block/large_fern_top2"
    }
  ]
  }
}