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": ""}
  Z:nJ michian 1308570 R. @       fNfc, GROWING IN DRY SANDY SOIL  z:& panicum flexile   > (GATTINGER) SCRIBN.  4 Washtenaw [ludwig herbarium specimens destroyed] r@<7  Panicum  x    42.33201 ;VzN    !j_O~ FLEXILE  &hH0 1557 dward G. Voss x$   united states E  1941-09-07 %  Poaceae r LX    v, poales   E louis k. ludwig 
{"catalogNumber": "1308570", "order": "Poales", "family": "Poaceae", "scientificName": "Panicum flexile", "scientificNameAuthorship": "(Gattinger) Scribn.", "genus": "Panicum", "subgenus": "", "specificEpithet": "flexile", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Edward G. Voss", "recordedBy": "Louis K. Ludwig", "recordNumber": "1557", "verbatimEventDate": "1941-09-07", "habitat": "Growing in dry sandy soil", "occurrenceRemarks": "[Ludwig herbarium specimens destroyed]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "", "decimalLatitude": "42.33201", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}