{"source_name": "Lygodium japonicum", "evidence": {"record_id": "tn:1851", "atlas_id": 1851, "state": "TN", "identity": {"status": "exact_name", "nc_name": "Lygodium japonicum", "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": ["47157"], "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": "Y", "regional_flag_scope": "Tennessee-Kentucky atlas; not promoted to county or state native range", "county_native_range": "unresolved"}, "state_rank": {"value": null, "status": "missing", "source_text": "KY[SNA]", "state": "TN"}, "invasive_status": {"status": "listed", "list_assertions": [{"list": "natural_areas", "threat": "Emerging", "source_name": "Lygodium japonicum (Thunb. ex Murr.) Swartz", "source_id": "tnipc:natural_areas", "url": "https://www.tnipc.org/invasive-plants/", "snapshot_row": 50}], "candidate_assertions": [], "unmatched_means": "unknown; not a non-invasive verdict"}, "horticulture": [], "shared_evidence_reference": {"nc_name": "Lygodium japonicum", "nc_record_path": "/nc/lygodium-japonicum.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:1851", "county:47157", "tnipc:natural_areas"]}, "native_synthesis": {"status": "conflicting_sources", "label": "Native status: sources disagree", "claims": [{"source": "USDA PLANTS", "scope": "L48", "claim": "introduced", "matched_name": "Lygodium japonicum", "text": "HI:I L48:I PR:I", "url": "https://plants.usda.gov/"}, {"source": "TN–KY Plant Atlas", "scope": "TN–KY", "claim": "native", "url": "https://tennessee-kentucky.plantatlas.usf.edu/plant/species/1851"}], "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": -55, "band": "Severe harm", "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": "conflicting_sources", "scoring_inputs": {"native": null, "state_rank": "", "invasive": true, "invasive_rank": "2", "harm_penalty": 0}, "severity_basis": "shared_rank", "harm": null, "harm_source": "https://ncwildflower.org/invasive-exotic-species-list/"}}