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characteristics cache retrieved 2026-08-23","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"}],"hardinessSelection":{"status":"selected","assertion":{"minimum":"3b","interpretation":"minimum-threshold","precision":"half-zone","zoneMapping":"derived-containing-band","sourceMeasurement":{"kind":"minimum-temperature","value":-33,"unit":"degrees-fahrenheit"},"applicability":"applicable","source":"usda-plants-characteristics","sourceRecordId":"SORU2","sourceTaxon":"Solidago rugosa","taxonMatch":"source-identifier","sourcePlacement":"PlantCharacteristics record 40120, Temperature, Minimum (°F)","sourceVersion":"PLANTS Help Document 2022; characteristics cache retrieved 2026-08-23","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"},"assertions":[{"minimum":"3b","interpretation":"minimum-threshold","precision":"half-zone","zoneMapping":"derived-containing-band","sourceMeasurement":{"kind":"minimum-temperature","value":-33,"unit":"degrees-fahrenheit"},"applicability":"applicable","source":"usda-plants-characteristics","sourceRecordId":"SORU2","sourceTaxon":"Solidago rugosa","taxonMatch":"source-identifier","sourcePlacement":"PlantCharacteristics record 40120, Temperature, Minimum (°F)","sourceVersion":"PLANTS Help Document 2022; characteristics cache retrieved 2026-08-23","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"}]},"invasiveIn":[],"statusAssertions":[],"fireEvidenceClass":"mixed-evidence","recommendation":"candidate","fireSourceScopes":[{"source":"dibble-2007-northeastern-invasives","sourceName":"Combustion characteristics of north-eastern USA vegetation tested in the cone calorimeter","sourceUrl":"https://research.fs.usda.gov/treesearch/31137","geography":{"grain":"aggregate-region","stateCodes":["ME","MD","MA","NY","VA"],"regions":["Northeastern and mid-Atlantic study sites"]},"completeness":"partial","reviewStatus":"reviewed","scope":"The authors collected foliage and twigs across study sites in Maine, Maryland, Massachusetts, New York, and Virginia, then conditioned and tested the samples in a cone calorimeter. FireApproved publishes 37 exact source owners only as multi-state laboratory context. The source does not establish that every taxon was sampled in every named state, whole-plant behavior, landscape suitability, or state planting guidance.","sourceVersion":"USDA-Treesearch-31137-2007","asOf":"2007-08-20T00:00:00.000Z"}],"firePerformanceConditions":[{"condition":"cured","evidence":[{"source":"dibble-2007-northeastern-invasives","verdict":"mixed","url":"https://research.fs.usda.gov/download/treesearch/31137.pdf","claims":"Conditioned foliage and twigs were tested at 25 kW/m2 in a cone calorimeter.","evidenceIndex":0}]}],"maintenanceAssertions":[],"maintenanceConditions":null,"regulatoryReviews":{},"seedReviews":{}},"legacyCompatibilityProjection":{"nativeStates":["AL","AR","CT","DE","FL","GA","IL","IN","KY","LA","MA","MD","ME","MI","MO","MS","NC","NJ","NY","OH","OK","PA","RI","SC","TN","TX","VA","VT","WI","WV"],"invasiveIn":[],"usdaZoneMin":"3b"},"localAssessmentContract":"Compare each dimension separately. State noxious-weed seed designations are material-scoped and never become non-seed plant restrictions, ecological-invasive findings, nursery restrictions, alternatives, product evidence, or fire votes. Introduced/established context is not an invasive warning. Minimum-only hardiness has no inferred maximum; canonical source-temperature conversion is validated and contradictory applicable rows project no primary zone. L48 context applies only to conterminous states and is never exact-state status. Fire-performance conditions are not maintenance advice. FEIS fire-ecology context does not vote in the plant classification. Absence of a status row is not regulatory clearance."}