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": ""}
   >lXC Panicum virgatum united states hs    L. )     Ui Poaceae   + POALES NORTH OF SOUTH HAVEN h     Michign  au 42.41699   ^ A Panicum  n~iM VAN BUfREN   G -86.27315   CLARENCE R. HANES mLBv  1307438 FlJ-   ) 1955-08-19  n  S.N. VIRGATUM X Y   
{"catalogNumber": "1307438", "order": "Poales", "family": "Poaceae", "scientificName": "Panicum virgatum", "scientificNameAuthorship": "L.", "genus": "Panicum", "subgenus": "", "specificEpithet": "virgatum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Clarence R. Hanes", "recordNumber": "s.n.", "verbatimEventDate": "1955-08-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Van Buren", "municipality": "", "locality": "North of South Haven", "decimalLatitude": "42.41699", "decimalLongitude": "-86.27315", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}