{"id":"us-ok","slug":"oklahoma","name":"Oklahoma","license":"CC-BY-4.0","placeNode":"/places/us-ok.json","construction":{"reviewStatus":"none","applications":[],"localApplications":[],"requirements":[],"sources":[{"title":"Oklahoma Uniform Building Code Commission","url":"https://oklahoma.gov/oubcc.html","publisher":"Oklahoma Uniform Building Code Commission","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"},{"title":"Adopted Building Codes","url":"https://oklahoma.gov/oubcc/codes-and-rules.html","publisher":"Oklahoma Uniform Building Code Commission","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}]},"localAuthorities":[],"claims":{"exact":[{"id":"guide:crosstimbers-and-red-flags:2","anchor":"local-us-ok-crosstimbers-and-red-flags-2","place":"E-988 eastern redcedar BMPs (Digital Prairie PDF)","placeId":"us-ok","scopeKind":"place","scopeMode":"descendants","scopeRef":null,"claim":"Until European settlement began in the 1800s, human- and lightning-caused fires were active on the landscape for about 10,000 years. Farming and over-use by livestock fragmented the landscape and thus stopped large-scale fires. In prairies and shrublands, fire suppression resulted in an increase in both fire-tolerant woody plants (resprouters) and fire-intolerant woody plants such as eastern redcedar and ashe juniper. Eventually the eastern redcedar will become so thick that fire will not carry across the area except under extreme wildfire conditions (high winds, low humidities, and high temperatures). Restoring fire (the historical driver) to the ecosystem eliminates eastern redcedar as a problem and causes it to retreat back to its historical places in the landscape (rock outcrops and canyons). Firewise practices reprinted from firewise.org include a clearing of at least 30 feet around the house for fire-fighting equipment, removal of ladder fuels that link the grass to the tree tops, and a four-zone graphic in which Zone 1 immediately surrounding the house should be especially fire resistant, well-irrigated, and carefully spaced.","asOf":"2026-08-25T00:00:00.000Z","object":{"kind":"guide","id":"crosstimbers-and-red-flags","title":"Crosstimbers and red flags","url":"/guides/crosstimbers-and-red-flags/"},"source":{"title":"Best Management Practices for Controlling Eastern Redcedar (E-988)","url":"http://digitalprairie.ok.gov/utils/getfile/collection/stgovpub/id/14269/filename/14567.pdf","publisher":"Oklahoma Department of Agriculture, Food, and Forestry - Forestry Services / Oklahoma Cooperative Extension Service","sourceType":"official","accessedOn":"2026-08-25T00:00:00.000Z","documentDate":"2007-02-13T00:00:00.000Z"}},{"id":"guide:crosstimbers-and-red-flags:1","anchor":"local-us-ok-crosstimbers-and-red-flags-1","place":"Oklahoma Forestry Services SafeStayOK (16 June 2026)","placeId":"us-ok","scopeKind":"place","scopeMode":"descendants","scopeRef":null,"claim":"While some plants are marketed and described as firesafe or fire resistant, all plants will burn under the right conditions, regardless of how they are classified. Years of plant testing studies determined that across the board there is no consistent standardized plant flammability testing or criteria for rating. It is better to focus on characteristics of the desired plant and the location where the plant will be placed over a theoretical fire-resistant rating. Placement is the most important criteria when it comes to fire-resistant plant selection. Through the incorporation of best management practices within 0–5 feet of a structure, eliminating combustible vegetation and other combustible materials reduces the potential that an ember can ignite a plant and reduces the potential for direct flame contact. Zone One is 0–30 feet from the structure. Check your local nursery, landscape contractor or contact OFS for advice on fire-resistant plants that are suited for your area.","asOf":"2026-08-25T00:00:00.000Z","object":{"kind":"guide","id":"crosstimbers-and-red-flags","title":"Crosstimbers and red flags","url":"/guides/crosstimbers-and-red-flags/"},"source":{"title":"Wildfire Prevention","url":"https://oklahoma.gov/safestayok/wildfire-prevention.html","publisher":"Oklahoma Forestry Services / Oklahoma Department of Agriculture, Food, and Forestry","sourceType":"official","accessedOn":"2026-08-25T00:00:00.000Z","documentDate":"2026-06-16T00:00:00.000Z"}}],"local":[]},"placeFocusedGuides":[{"id":"crosstimbers-and-red-flags","title":"Crosstimbers and red flags","url":"/guides/crosstimbers-and-red-flags/"}],"findings":[],"plants":{"grain":"state","total":437,"nativeDocumented":0,"invasiveOrNoxiousFlagged":76,"fireResistant":234,"keepAway":43,"conflicts":7,"page":"/grow/oklahoma/"},"fireEvidencePublicationScope":{"answerGrain":"typed-state-source","sourceCount":1}}