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": ""}
     yZs_S growing in dry sandy soil   q3rC michigan LOUIS K. LUDWIG ,+Dbk   >v flexile   I Edward G. Voss  z~F -84.08884   i~ Panicum flexile  j/ UNITED STATES  1 on a hillside along the n.w. shore of Mill Lake  1308570 _6g  1941-09-07 &,   panicum l :LM  poales ~c-   3 42.33201 ludwig herbarium specimens destroyed] 3p   Washtenaw 9I     1557 POACEAE A7 
{"catalogNumber": "1308570", "order": "Poales", "family": "Poaceae", "scientificName": "Panicum flexile", "scientificNameAuthorship": "", "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": "on a hillside along the n.w. shore of Mill Lake", "decimalLatitude": "42.33201", "decimalLongitude": "-84.08884", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}