{"source_name": "Equisetum hyemale", "evidence": {"record_id": "tn:3774", "atlas_id": 3774, "state": "TN", "identity": {"status": "new_taxon", "nc_name": null, "approved_aliases": [], "candidate_nc_name": null, "candidate_names": [], "research_match_status": "unmatched_candidate", "merge_policy": "no fuzzy or parent-species merging"}, "occurrence": {"basis": "atlas_county_search", "county_fips": ["47001", "47009", "47013", "47017", "47019", "47021", "47025", "47029", "47031", "47035", "47037", "47045", "47049", "47055", "47057", "47059", "47061", "47065", "47067", "47073", "47081", "47085", "47087", "47093", "47095", "47097", "47101", "47113", "47115", "47119", "47121", "47125", "47129", "47131", "47133", "47139", "47143", "47145", "47149", "47153", "47157", "47163", "47167", "47171", "47173", "47175", "47179", "47185"], "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": null, "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": null, "state": "TN"}, "invasive_status": {"status": "no_exact_listing_match", "list_assertions": [], "candidate_assertions": [], "unmatched_means": "unknown; not a non-invasive verdict"}, "horticulture": [], "shared_evidence_reference": null, "quercus_score": null, "fit_score": null, "score_status": "TN reference cohort and missing-rank policy not approved", "sources": ["atlas:3774", "county:47001", "county:47009", "county:47013", "county:47017", "county:47019", "county:47021", "county:47025", "county:47029", "county:47031", "county:47035", "county:47037", "county:47045", "county:47049", "county:47055", "county:47057", "county:47059", "county:47061", "county:47065", "county:47067", "county:47073", "county:47081", "county:47085", "county:47087", "county:47093", "county:47095", "county:47097", "county:47101", "county:47113", "county:47115", "county:47119", "county:47121", "county:47125", "county:47129", "county:47131", "county:47133", "county:47139", "county:47143", "county:47145", "county:47149", "county:47153", "county:47157", "county:47163", "county:47167", "county:47171", "county:47173", "county:47175", "county:47179", "county:47185"]}, "native_synthesis": {"status": "unresolved", "label": "Tennessee native status unresolved", "claims": [{"source": "TN–KY Plant Atlas", "scope": "TN–KY", "claim": "unknown", "url": "https://tennessee-kentucky.plantatlas.usf.edu/plant/species/3774"}], "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": null, "band": "Not scored", "status": "native_status_unresolved", "reason": "Native/exotic classification is missing or conflicting in the available sources.", "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": "unresolved", "scoring_inputs": {"native": null, "state_rank": "", "invasive": false, "invasive_rank": null, "harm_penalty": 0}}}