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North Carolina (?), Virginia, Pennsylvania, n. Indiana, n. Illinois, and s. 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North Carolina (?), Virginia, Pennsylvania, n. Indiana, n. Illinois, and s. 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distribution and native-status discovery filters do not establish local growing or bloom timing.","source":"minnesota","source_name":"Oenothera oakesiana","source_sha256":"c3db6328292d83367d4c8613c94528a0faed3f883ed70cc796a599f29bb6755c","source_url":"https://www.minnesotawildflowers.info/flower/oakes-evening-primrose","status":"eligible_fact","taxon_id":"taxon:fb1aa351-03ef-5f10-8c03-49cf44833835","value":{"max":2,"min":0.5,"unit":"feet"}},{"expected_source_name":"Oenothera oakesiana","field":"life_cycle","original_field":"life_cycle","record_id":"trait:bf546f05ef8dbf2a23df33ad2570509112fa0e74c69a04613384889e803a365d","retrieved_at":"2026-10-03T22:42:58.306824+00:00","scope":{"kind":"unspecified"},"scope_note":"Species profile; distribution and native-status discovery filters do not establish local growing or bloom timing.","source":"minnesota","source_name":"Oenothera oakesiana","source_sha256":"c3db6328292d83367d4c8613c94528a0faed3f883ed70cc796a599f29bb6755c","source_url":"https://www.minnesotawildflowers.info/flower/oakes-evening-primrose","status":"eligible_fact","taxon_id":"taxon:fb1aa351-03ef-5f10-8c03-49cf44833835","value":["biennial"]}],"values":{"height_description":"0.5–2 feet","life_cycle":["biennial"]}},"wildflower_center":{"matched_name":"Oenothera oakesiana","retrieved":"2026-10-03T21:57:55.418631+00:00","scope":{"kind":"unspecified"},"scope_note":"Source-reported species characteristics; not a location-specific estimate.","source_label":"Lady Bird Johnson Wildflower Center","source_sha256":"7f50666721fb2a537c20a50f04514afc2b44eba2fcb70d5cd8531f018d4f7344","source_url":"https://www.wildflower.org/plants/result.php?id_plant=OEOA","trait_evidence":[{"expected_source_name":"Oenothera oakesiana","field":"life_cycle","original_field":"life_cycle","record_id":"trait:5259329eee16c701f52efb673ea8f93afa07830b63c5cd49b500e2cdd4e7cafd","retrieved_at":"2026-10-03T21:57:55.418631+00:00","scope":{"kind":"unspecified"},"scope_note":"Species profile; distribution and native-status discovery filters do not establish local growing or bloom timing.","source":"wildflower","source_name":"Oenothera oakesiana","source_sha256":"7f50666721fb2a537c20a50f04514afc2b44eba2fcb70d5cd8531f018d4f7344","source_url":"https://www.wildflower.org/plants/result.php?id_plant=OEOA","status":"eligible_fact","taxon_id":"taxon:fb1aa351-03ef-5f10-8c03-49cf44833835","value":["Biennial"]},{"expected_source_name":"Oenothera oakesiana","field":"height_description","original_field":"height","record_id":"trait:f2bd6b17c37245be8cb0e3040dad1b290cbb0ecaa69bc7b7082ad7a31d3580a8","retrieved_at":"2026-10-03T21:57:55.418631+00:00","scope":{"kind":"unspecified"},"scope_note":"Species profile; 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