{"source_name": "Populus alba", "evidence": {"record_id": "tn:3436", "atlas_id": 3436, "state": "TN", "identity": {"status": "exact_name", "nc_name": "Populus alba", "approved_aliases": [], "candidate_nc_name": null, "candidate_names": [], "research_match_status": "exact_published", "merge_policy": "no fuzzy or parent-species merging"}, "occurrence": {"basis": "atlas_county_search", "county_fips": ["47005", "47009", "47011", "47013", "47019", "47027", "47035", "47037", "47041", "47043", "47047", "47049", "47051", "47053", "47055", "47059", "47065", "47075", "47093", "47095", "47097", "47111", "47123", "47125", "47135", "47139", "47143", "47145", "47147", "47149", "47151", "47153", "47157", "47161", "47173", "47175", "47179", "47183", "47187", "47189"], "native_range_confirmed": false, "absence_means": "not recorded in this snapshot; not proof of absence"}, "native_status": {"status": "unresolved", "state": "TN", "state_assertions": [], "regional_atlas_flag": "N", "regional_flag_scope": "Tennessee-Kentucky atlas; not promoted to county or state native range", "county_native_range": "unresolved"}, "state_rank": {"value": "SNA", "status": "unranked_or_not_applicable", "source_text": "TN[SNA] KY[SNA]", "state": "TN"}, "invasive_status": {"status": "listed", "list_assertions": [{"list": "disturbed_habitats", "threat": null, "source_name": "Populus alba L.", "source_id": "tnipc:disturbed_habitats", "url": "https://www.tnipc.org/disturbed-habitats-list/", "snapshot_row": 130}], "candidate_assertions": [], "unmatched_means": "unknown; not a non-invasive verdict"}, "horticulture": [], "shared_evidence_reference": {"nc_name": "Populus alba", "nc_record_path": "/nc/populus-alba.json", "reuse_scope": "identity link only; source traits require review; NC geography and scores excluded"}, "quercus_score": null, "fit_score": null, "score_status": "TN reference cohort and missing-rank policy not approved", "sources": ["atlas:3436", "county:47005", "county:47009", "county:47011", "county:47013", "county:47019", "county:47027", "county:47035", "county:47037", "county:47041", "county:47043", "county:47047", "county:47049", "county:47051", "county:47053", "county:47055", "county:47059", "county:47065", "county:47075", "county:47093", "county:47095", "county:47097", "county:47111", "county:47123", "county:47125", "county:47135", "county:47139", "county:47143", "county:47145", "county:47147", "county:47149", "county:47151", "county:47153", "county:47157", "county:47161", "county:47173", "county:47175", "county:47179", "county:47183", "county:47187", "county:47189", "tnipc:disturbed_habitats"]}, "native_synthesis": {"status": "not_native", "label": "Non-native; listed invasive in Tennessee", "claims": [{"source": "USDA PLANTS", "scope": "L48", "claim": "introduced", "matched_name": "Populus alba", "text": "CAN:I L48:I", "url": "https://plants.usda.gov/"}, {"source": "TN–KY Plant Atlas", "scope": "TN–KY", "claim": "introduced", "url": "https://tennessee-kentucky.plantatlas.usf.edu/plant/species/3436"}], "rule": "tn-native-synthesis-1", "explanation": "A TN-specific UT native-guide page or an exact entry in the Tennessee rare-plant list supports a direct source claim. Otherwise, TN occurrence plus an atlas native flag and exact-name native evidence from NC flora or USDA L48 supports a provisional state inference. No one regional claim or occurrence alone establishes TN nativity; NC and L48 claims retain their actual scopes.", "county_native_range": "unresolved"}, "assessment": {"version": "nc-rules-0.6.4-shared-2", "score": -30, "band": "Harmful", "status": "scored_invasive", "reason": "Listed invasive in Tennessee; do not plant. Uses the shared species harm profile established from the NC ranking and documented harm; not a Tennessee agency severity rating.", "reference": "NC native reference cohort, method 0.6.4; not a Tennessee percentile", "rarity_adjustment": null, "rarity_policy": "Existing NC rule: S5 0, S4 -2, S3 -5, S2 -8, S1/SH -10; unranked -5; score floor 5.", "fit_score": null, "native_basis": "not_native", "scoring_inputs": {"native": false, "state_rank": "SNA", "invasive": true, "invasive_rank": "3", "harm_penalty": 0}, "severity_basis": "shared_rank", "harm": null, "harm_source": "https://ncwildflower.org/invasive-exotic-species-list/"}}