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": ""}
        7# 1983-04-23   $ texensis (Shear) A.S. Hitchc. ?FA   S. L. HATCH m    OD[q BROUS   1431454 ;     fhY7 Poaceae    @a SAN PATRICIO T>EXAS `v    
{"catalogNumber": "1431454", "order": "", "family": "Poaceae", "scientificName": "", "scientificNameAuthorship": "(Shear) A.S. Hitchc.", "genus": "Bromus", "subgenus": "", "specificEpithet": "texensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "S. L. Hatch", "recordNumber": "", "verbatimEventDate": "1983-04-23", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Texas", "county": "San Patricio", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}