{"source_name": "Panicum virgatum", "evidence": {"record_id": "tn:3879", "atlas_id": 3879, "state": "TN", "identity": {"status": "exact_name", "nc_name": "Panicum virgatum", "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": ["47031", "47035", "47037", "47065", "47073", "47091", "47113", "47115", "47139", "47141", "47175", "47179"], "native_range_confirmed": false, "absence_means": "not recorded in this snapshot; not proof of absence"}, "native_status": {"status": "source_supported", "state": "TN", "state_assertions": [{"claim": "native", "scope": "TN", "source_id": "ut:6102", "text": "Native Region: Statewide", "url": "https://tynnativeplants.wordpress.com/grasses-2/scientific-name/switch-grass/"}], "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": [{"source_id": "ut:6102", "url": "https://tynnativeplants.wordpress.com/grasses-2/scientific-name/switch-grass/", "source_name": "Panicum virgatum", "native_region_text": "Native Region: Statewide", "conditions_text": "Full to part sun, moderately wet to dry moisture level, best on sandy to clay loams and does poorly on heavy soils. 3-6 feet height, blooms late summer into fall, pink flowers, spreads steadily into colonies by both rhizomes and re-seeding.", "status": "source_prose_not_numeric_fit_input"}], "shared_evidence_reference": {"nc_name": "Panicum virgatum", "nc_record_path": "/nc/panicum-virgatum.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:3879", "county:47031", "county:47035", "county:47037", "county:47065", "county:47073", "county:47091", "county:47113", "county:47115", "county:47139", "county:47141", "county:47175", "county:47179", "ut:6102"]}, "native_synthesis": {"status": "native_supported", "label": "Native to Tennessee (state-specific source)", "claims": [{"source": "UT Tennessee Smart Yards native-plant guide", "scope": "TN", "claim": "native", "url": "https://tynnativeplants.wordpress.com/grasses-2/scientific-name/switch-grass/", "text": "Native Region: Statewide", "basis": "species-specific page in a state-specific native collection"}, {"source": "NC vascular flora", "scope": "NC", "claim": "native", "matched_name": "Panicum virgatum", "url": "https://auth1.dpr.ncparks.gov/flora/"}, {"source": "USDA PLANTS", "scope": "L48", "claim": "native", "matched_name": "Panicum virgatum", "text": "CAN:N HI:I L48:N", "url": "https://plants.usda.gov/"}, {"source": "TN–KY Plant Atlas", "scope": "TN–KY", "claim": "unknown", "url": "https://tennessee-kentucky.plantatlas.usf.edu/plant/species/3879"}], "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": 44, "band": "Good", "status": "scored_provisional", "reason": "Calculated with the same rules as North Carolina, using Tennessee host-range and conservation-rank inputs. Native-status evidence is shown separately.", "reference": "NC native reference cohort, method 0.6.4; not a Tennessee percentile", "rarity_adjustment": -5, "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": "native_supported", "scoring_inputs": {"native": true, "state_rank": "", "invasive": false, "invasive_rank": null, "harm_penalty": 0}, "factor_identity": {"name_used": "Panicum virgatum", "basis": "approved shared identity", "growth_habit_source": "USDA PLANTS"}, "factors": {"raw": {"caterpillars": 23, "bees": 0, "specialists": 0, "birds": 35, "structure": ["Graminoid"], "genus_used": null}, "pct": {"caterpillars": 0.880272952853598, "bees": 0.24379652605459057, "specialists": 0.4323821339950372, "birds": 0.9882133995037221, "structure": 0.5}, "composite": 0.659, "rank_pct": 0.507, "insect_support": {"version": "insect-support-1", "groups": {"ants": {"label": "Ants", "status": "unknown", "recorded_names": [], "recorded_name_count": null, "flower_visits": [], "seed_interactions": [], "credit": 0}, "beetles": {"label": "Beetles", "status": "unknown", "recorded_names": [], "recorded_name_count": null, "flower_visits": [], "seed_interactions": [], "credit": 0}, "flies": {"label": "Flies", "status": "unknown", "recorded_names": [], "recorded_name_count": null, "flower_visits": [], "seed_interactions": [], "credit": 0}, "moths_butterflies": {"label": "Adult butterflies / moths", "status": "unknown", "recorded_names": [], "recorded_name_count": null, "flower_visits": [], "seed_interactions": [], "credit": 0}, "other_hymenoptera": {"label": "Other wasps", "status": "unknown", "recorded_names": [], "recorded_name_count": null, "flower_visits": [], "seed_interactions": [], "credit": 0}, "other_insects": {"label": "Other insects", "status": "unknown", "recorded_names": [], "recorded_name_count": null, "flower_visits": [], "seed_interactions": [], "credit": 0}}, "credit": 0, "maximum_credit": 5, "interpretation": "One provisional point per additional documented insect group, capped at five. Flower visits are a resource-use proxy, not confirmed feeding or pollination. Missing evidence is unknown. Study volume and repeated records earn no extra credit."}, "baseline_score": 49, "applied_insect_credit": 0}, "source_ids": ["lep_tn", "globi", "bigbee", "avian", "usdahabit", "robertson", "antseed"], "factor_scopes": {"caterpillars": "Host genera of native Lepidoptera recorded in Tennessee; host association and range overlap, not confirmed local feeding.", "bees": "Southeastern North America", "specialists": "Eastern North America", "birds": "North America", "structure": "USDA species growth habit where matched; otherwise TN–KY atlas growth habit"}}}