{"id":"deschampsia-caespitosa","license":"CC-BY-4.0","data":{"scientificName":"Deschampsia caespitosa","commonNames":["Tufted Hair Grass"],"taxonRank":"species","acceptedName":"Deschampsia cespitosa","family":"Poaceae","ids":{"usdaSymbol":"DECE","gbifKey":7226886,"itisTsn":40586,"wikidataQid":"Q159722","inatTaxonId":76639},"usdaZoneMin":"3a","zoneSource":"usda-plants","states":["AK","AZ","CA","CO","CT","ID","IL","IN","KY","MA","MD","ME","MI","MN","MT","NC","ND","NH","NJ","NM","NV","NY","OH","OR","PA","RI","SD","UT","VA","VT","WA","WI","WV","WY"],"hardinessAssertions":[{"minimum":"3a","interpretation":"minimum-threshold","precision":"half-zone","zoneMapping":"derived-containing-band","sourceMeasurement":{"kind":"minimum-temperature","value":-38,"unit":"degrees-fahrenheit"},"applicability":"applicable","source":"usda-plants-characteristics","sourceRecordId":"DECE","sourceTaxon":"Deschampsia caespitosa","taxonMatch":"source-identifier","sourcePlacement":"PlantCharacteristics record 21550, Temperature, Minimum (°F)","sourceVersion":"PLANTS Help Document 2022; characteristics cache retrieved 2026-08-23","asOf":"2026-08-26T00:00:00.000Z"}],"plantForm":"grass","matureHeightFt":3,"waterNeed":"high","photo":{"file":"/images/plants/deschampsia-caespitosa.jpg","sourceUrl":"https://www.inaturalist.org/photos/465082172","observationUrl":"https://www.inaturalist.org/observations/259124674","license":"cc-by","attribution":"(c) Richard Littauer, some rights reserved (CC BY)","fetchedOn":"2026-08-23T00:00:00.000Z"},"evidence":[{"source":"osu-b921","verdict":"avoid","verdictRaw":"H flammability","claims":"Clump forming; tolerant of moist soils and full sun.","sourcePlacement":{"value":"plant in Zone 2-3 or beyond","scheme":"b921-siting"},"edition":"2006","url":"http://web.archive.org/web/20070714035936/http://www.firewise.org/usa/files/ohio_plantlist.pdf","accessedOn":"2026-08-23T00:00:00.000Z"}],"flammabilityClass":"highly-flammable","ratingReason":"limited-evidence","recommendation":"avoid","author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-23T00:00:00.000Z","reviewNotes":"Photo auto-selected (top-voted iNat); human review pending."},"localAssessmentInputs":{"stateDistribution":["AK","AZ","CA","CO","CT","ID","IL","IN","KY","MA","MD","ME","MI","MN","MT","NC","ND","NH","NJ","NM","NV","NY","OH","OR","PA","RI","SD","UT","VA","VT","WA","WI","WV","WY"],"nativeStates":[],"rangeAssertions":[{"relation":"documented-occurrence","geography":{"grain":"state","stateCodes":["AK","AZ","CA","CO","CT","ID","IL","IN","KY","MA","MD","ME","MI","MN","MT","NC","ND","NH","NJ","NM","NV","NY","OH","OR","PA","RI","SD","UT","VA","VT","WA","WI","WV","WY"]},"provenance":"legacy-field"}],"usdaZoneMin":"3a","usdaZoneMax":null,"hardinessAssertions":[{"minimum":"3a","interpretation":"minimum-threshold","precision":"half-zone","zoneMapping":"derived-containing-band","sourceMeasurement":{"kind":"minimum-temperature","value":-38,"unit":"degrees-fahrenheit"},"applicability":"applicable","source":"usda-plants-characteristics","sourceRecordId":"DECE","sourceTaxon":"Deschampsia caespitosa","taxonMatch":"source-identifier","sourcePlacement":"PlantCharacteristics record 21550, Temperature, Minimum (°F)","sourceVersion":"PLANTS Help Document 2022; characteristics cache retrieved 2026-08-23","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"}],"hardinessSelection":{"status":"selected","assertion":{"minimum":"3a","interpretation":"minimum-threshold","precision":"half-zone","zoneMapping":"derived-containing-band","sourceMeasurement":{"kind":"minimum-temperature","value":-38,"unit":"degrees-fahrenheit"},"applicability":"applicable","source":"usda-plants-characteristics","sourceRecordId":"DECE","sourceTaxon":"Deschampsia caespitosa","taxonMatch":"source-identifier","sourcePlacement":"PlantCharacteristics record 21550, 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":"3a","interpretation":"minimum-threshold","precision":"half-zone","zoneMapping":"derived-containing-band","sourceMeasurement":{"kind":"minimum-temperature","value":-38,"unit":"degrees-fahrenheit"},"applicability":"applicable","source":"usda-plants-characteristics","sourceRecordId":"DECE","sourceTaxon":"Deschampsia caespitosa","taxonMatch":"source-identifier","sourcePlacement":"PlantCharacteristics record 21550, 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":"highly-flammable","recommendation":"avoid","fireSourceScopes":[{"source":"osu-b921","sourceName":"Firewise Landscaping (OSU Extension Bulletin 921)","sourceUrl":"http://web.archive.org/web/20070714035936/http://www.firewise.org/usa/files/ohio_plantlist.pdf","geography":{"grain":"state","stateCodes":["OH"]},"completeness":"partial","reviewStatus":"reviewed","scope":"Ohio State University Extension Bulletin 921 is an Ohio publication that describes Ohio fire seasons and landscape conditions and labels nativity to Ohio. FireApproved publishes 352 exact source-owning plant records from its eight rated tables. This historical publication scope does not assert current extension endorsement or that a listed plant suits every Ohio site.","sourceVersion":"OSU-Extension-Bulletin-921-2006","asOf":"2006-03-01T00:00:00.000Z"}],"firePerformanceConditions":[],"maintenanceAssertions":[],"maintenanceConditions":null,"regulatoryReviews":{},"seedReviews":{}},"legacyCompatibilityProjection":{"nativeStates":[],"invasiveIn":[],"usdaZoneMin":"3a"},"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."}