Refactor the unstructured text into a valid JSON dictionary. The key names follow the Darwin Core Archive Standard. If a key lacks content, then insert an empty string. Fill in the following JSON structure as required: {"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}
  asf6^ United States      d  HELMAR LAKE     < alismatales   POTAMOGETON  byw   RW m JOSEPH BAILEY   2 wp BERCHTOLDII   kF. fieber   44.54309 `Gia   OSCODA Y   1280200 1G`    
{"catalogNumber": "1280200", "order": "Alismatales", "family": "", "scientificName": "", "scientificNameAuthorship": "Fieber", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "berchtoldii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Joseph Bailey", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Oscoda", "municipality": "", "locality": "Helmar Lake", "decimalLatitude": "44.54309", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}