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": ""}
   O& HURON    saltonstall, p. m. peterson & soreng 72M        2 PHRAGMITES  :8 "plants 2.5 m. high; panicle reddish, nodding." [spikelets mostly 7-11 mm. long, one flowered and hence with glabrous rachilla]      1307899 t          b australis
{"catalogNumber": "1307899", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "Saltonstall, P. M. Peterson & Soreng", "genus": "Phragmites", "subgenus": "", "specificEpithet": "australis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "\"Plants 2.5 m. high; panicle reddish, nodding.\" [Spikelets mostly 7-11 mm. long, one flowered and hence with glabrous rachilla]", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Huron", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}