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": ""}
Polygonum aviculare subsp. buxiforme REj   @ dH; Caryophyllales  polygonum ]K        Texas 6  50361 4oae     SUBSP. #ZoF  (small) costea & tardif B2D|       .V Michael J. Oldham  POLYGONACEAE  92 ~   14739773 .BC ^  Victor L. Cory G   ~17?R CONTACT UM HERBARIUM 
{"catalogNumber": "1439773", "order": "Caryophyllales", "family": "Polygonaceae", "scientificName": "Polygonum aviculare subsp. buxiforme", "scientificNameAuthorship": "(Small) Costea & Tardif", "genus": "Polygonum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Victor L. Cory", "recordNumber": "50361", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Texas", "county": "Michael J. Oldham", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}