{"id":"agropyron-fragile","license":"CC-BY-4.0","data":{"scientificName":"Agropyron fragile","commonNames":["Siberian Wheatgrass"],"taxonRank":"species","acceptedName":"Agropyron fragile","family":"Poaceae","ids":{"usdaSymbol":"AGFR","gbifKey":2705195},"usdaZoneMin":"2b","zoneSource":"usda-plants","states":["CO","MT","NM","NV","SD","UT","WY"],"rangeAssertions":[{"relation":"introduced","geography":{"grain":"state","stateCodes":["CO"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 73 — Northwestern U.S.A.","TDWG level 3 COL — Colorado"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["ID"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 73 — Northwestern U.S.A.","TDWG level 3 IDA — Idaho"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["NM"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 77 — South-Central U.S.A.","TDWG level 3 NWM — New Mexico"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["NV"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 76 — Southwestern U.S.A.","TDWG level 3 NEV — Nevada"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["SD"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 74 — North-Central U.S.A.","TDWG level 3 SDA — South Dakota"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["UT"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 76 — Southwestern U.S.A.","TDWG level 3 UTA — Utah"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["WY"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 73 — Northwestern U.S.A.","TDWG level 3 WYO — Wyoming"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"}],"statusAssertions":[{"status":"introduced-established","channel":"ecological","geography":{"grain":"aggregate-region","regions":["L48"]},"source":"us-riis-v2","sourceRecordId":"USRIIS-L48-Plantae6187","sourceVersion":"2.0 (November 2022)","asOf":"2022-10-23T00:00:00.000Z","sourceModified":"2017-11-21T00:00:00.000Z","sourceTaxon":{"name":"Agropyron fragile","rank":"species","rawRank":"Species"},"sourceDesignation":{"code":"C3","label":"established (category C3)"},"associatedReferences":["USDA Natural Resources Conservation Service (NRCS) PLANTS Database (2021do), https://plants.usda.gov/home/plantProfile?symbol=AGFR"],"taxonProjection":{"basis":"exact-taxon","notes":"exact source identifier, rank, family, and scientific/accepted name"}}],"hardinessAssertions":[{"minimum":"2b","interpretation":"minimum-threshold","precision":"half-zone","zoneMapping":"derived-containing-band","sourceMeasurement":{"kind":"minimum-temperature","value":-43,"unit":"degrees-fahrenheit"},"applicability":"applicable","source":"usda-plants-characteristics","sourceRecordId":"AGFR","sourceTaxon":"Agropyron fragile","taxonMatch":"source-identifier","sourcePlacement":"PlantCharacteristics record 20079, Temperature, Minimum (°F)","sourceVersion":"PLANTS Help Document 2022; characteristics cache retrieved 2026-08-23","asOf":"2026-08-26T00:00:00.000Z"}],"plantForm":"grass","matureHeightFt":2,"waterNeed":"low","evidence":[{"source":"nrcs-tn66-fuel-breaks-2016","verdict":"recommend","verdictRaw":"Common plant material options for greenstrips.","claims":"Appendix B row: Siberian Wheatgrass (Agropyron fragile). Origin: Introduced; lifeform: Bunchgrass; relative height: Tall; seedling vigor: Med.; longevity: Long. Precipitation zone: 8-16 in; soil texture: fine, medium, and coarse; seeds/lb: 160,000; single-species drill seeding rate: 6 lb/ac; seeding depth: 1/4-1/2 in. Recommended releases: Vavilov, Vavilov II.","sourcePlacement":{"value":"common plant material option for a managed greenstrip in sagebrush ecosystems","scheme":"nrcs-tn66-greenstrip"},"edition":"Plant Materials Technical Note 66","url":"https://www.wlfw.org/wp-content/uploads/2016/03/tn66_fuel_breaks.pdf","documentDate":"2016-03-01T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"},{"source":"unr-fs-97-36-greenstrips","verdict":"recommend","verdictRaw":"Common perennial plants used in greenstrips and selected characteristics important to their establishment and use","claims":"Table 1 row: Siberian Wheatgrass (Agropyron sibiricum). Minimum yearly precipitation: 8-10 inches; salt or alkali tolerance: Moderate; status: I; growth form, flower color, or season: Bunch; varieties: ‘P-27’. The fact sheet says greenstrips should be grazed or mown frequently enough to reduce fuel buildup; otherwise their effectiveness is reduced dramatically.","sourcePlacement":{"value":"common perennial plant used in a maintained northern Nevada greenstrip","scheme":"unr-fs-97-36-greenstrip"},"edition":"Fact Sheet 97-36","url":"https://naes.agnt.unr.edu/PMS/Pubs/2020-3342.pdf","documentDate":"1997-01-01T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"},{"source":"harrison-2002-rangelands-kochia-fires","verdict":"recommend","verdictRaw":"Species frequently used in greenstrips.","claims":"Table 1 row: Siberian wheatgrass — A. fragile (Roth) Candargy. The article says these are species frequently used in greenstrips; it does not report a separate burn result for this row.","sourcePlacement":{"value":"species used in a semiarid western rangeland greenstrip","scheme":"harrison-2002-greenstrip"},"edition":"Rangelands 24(5)","url":"https://extension.usu.edu/preparedness/files/wildfire/rangelands.pdf","documentDate":"2002-10-01T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"}],"flammabilityClass":"fire-resistant","ratingReason":"limited-evidence","recommendation":"on-list","author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-25T00:00:00.000Z"},"localAssessmentInputs":{"stateDistribution":["CO","MT","NM","NV","SD","UT","WY"],"nativeStates":[],"rangeAssertions":[{"relation":"introduced","geography":{"grain":"state","stateCodes":["CO"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 73 — Northwestern U.S.A.","TDWG level 3 COL — Colorado"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["ID"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 73 — Northwestern U.S.A.","TDWG level 3 IDA — Idaho"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["NM"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 77 — South-Central U.S.A.","TDWG level 3 NWM — New Mexico"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["NV"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 76 — Southwestern U.S.A.","TDWG level 3 NEV — Nevada"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["SD"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 74 — North-Central U.S.A.","TDWG level 3 SDA — South Dakota"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["UT"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 76 — Southwestern U.S.A.","TDWG level 3 UTA — Utah"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["WY"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 73 — Northwestern U.S.A.","TDWG level 3 WYO — Wyoming"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"documented-occurrence","geography":{"grain":"state","stateCodes":["CO","MT","NM","NV","SD","UT","WY"]},"provenance":"legacy-field"}],"usdaZoneMin":"2b","usdaZoneMax":null,"hardinessAssertions":[{"minimum":"2b","interpretation":"minimum-threshold","precision":"half-zone","zoneMapping":"derived-containing-band","sourceMeasurement":{"kind":"minimum-temperature","value":-43,"unit":"degrees-fahrenheit"},"applicability":"applicable","source":"usda-plants-characteristics","sourceRecordId":"AGFR","sourceTaxon":"Agropyron fragile","taxonMatch":"source-identifier","sourcePlacement":"PlantCharacteristics record 20079, 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":"2b","interpretation":"minimum-threshold","precision":"half-zone","zoneMapping":"derived-containing-band","sourceMeasurement":{"kind":"minimum-temperature","value":-43,"unit":"degrees-fahrenheit"},"applicability":"applicable","source":"usda-plants-characteristics","sourceRecordId":"AGFR","sourceTaxon":"Agropyron fragile","taxonMatch":"source-identifier","sourcePlacement":"PlantCharacteristics record 20079, 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":"2b","interpretation":"minimum-threshold","precision":"half-zone","zoneMapping":"derived-containing-band","sourceMeasurement":{"kind":"minimum-temperature","value":-43,"unit":"degrees-fahrenheit"},"applicability":"applicable","source":"usda-plants-characteristics","sourceRecordId":"AGFR","sourceTaxon":"Agropyron fragile","taxonMatch":"source-identifier","sourcePlacement":"PlantCharacteristics record 20079, 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":[{"status":"introduced-established","channel":"ecological","geography":{"grain":"aggregate-region","regions":["L48"]},"source":"us-riis-v2","sourceRecordId":"USRIIS-L48-Plantae6187","sourceVersion":"2.0 (November 2022)","asOf":"2022-10-23T00:00:00.000Z","sourceModified":"2017-11-21T00:00:00.000Z","sourceTaxon":{"name":"Agropyron fragile","rank":"species","rawRank":"Species"},"sourceDesignation":{"code":"C3","label":"established (category C3)"},"associatedReferences":["USDA Natural Resources Conservation Service (NRCS) PLANTS Database (2021do), https://plants.usda.gov/home/plantProfile?symbol=AGFR"],"taxonProjection":{"basis":"exact-taxon","notes":"exact source identifier, rank, family, and scientific/accepted name"},"provenance":"cited"}],"fireEvidenceClass":"fire-resistant","recommendation":"on-list","fireSourceScopes":[],"firePerformanceConditions":[],"maintenanceAssertions":[],"maintenanceConditions":null,"regulatoryReviews":{},"seedReviews":{}},"legacyCompatibilityProjection":{"nativeStates":[],"invasiveIn":[],"usdaZoneMin":"2b"},"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."}