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": ""}
Infrequent. Bottom lands of the Canadian Rive7r  ]H  Euphorbia davidii ^u        AW[8 malpighiales  united states i  Hemphill~ B* @    MARK H. MAYFIELD F9m     X 4188  1955-06-23 h5~  5 miles e of canadian C,$   pJlans to 2 ft. tall, apparently annual    Texas M_   EUPHORBIACEAE xf@`   ~orvB DAVIDII   ; 1246368
{"catalogNumber": "1246368", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Euphorbia davidii", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "davidii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Mark H. Mayfield", "recordedBy": "", "recordNumber": "4188", "verbatimEventDate": "1955-06-23", "habitat": "Infrequent. Bottom lands of the Canadian River", "occurrenceRemarks": "Plants to 2 ft. tall, apparently annual", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "Hemphill", "municipality": "", "locality": "5 miles E of Canadian", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}