{"source_name": "Perideridia americana", "evidence": {"record_id": "tn:1351", "atlas_id": 1351, "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": ["47037", "47055", "47187"], "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": "S2", "status": "reported_rank", "source_text": "TN[S2] KY[S2]", "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:13736", "url": "https://tynnativeplants.wordpress.com/flowers/common-name/wild-dill-eastern-yampah/", "source_name": "Perideridia americana", "native_region_text": "Native Region: Only occurs in 4 counties in the Highland Rim and Central Basin Provinces: Giles, Williamson, Davidson, and Rutherford.", "conditions_text": "Full to part sun; moderately wet to moderately dry moisture; prefers rich loamy soil but has some tolerance for clay and rocky soil; pH ?. 3 feet height; white flowers; blooms in spring.", "status": "source_prose_not_numeric_fit_input"}], "shared_evidence_reference": null, "quercus_score": null, "fit_score": null, "score_status": "TN reference cohort and missing-rank policy not approved", "sources": ["atlas:1351", "county:47037", "county:47055", "county:47187", "ut:13736"]}, "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/flowers/common-name/wild-dill-eastern-yampah/", "text": "Native Region: Only occurs in 4 counties in the Highland Rim and Central Basin Provinces: Giles, Williamson, Davidson, and Rutherford.", "basis": "species-specific page in a state-specific native collection"}, {"source": "Tennessee Natural Heritage rare-plant list (2025)", "scope": "TN", "claim": "native", "url": "https://www.tn.gov/content/dam/tn/environment/natural-areas/documents/na_tn-rare-plant-list.pdf#page=36", "matched_name": "Perideridia americana", "text": "Perideridia americana Eastern Yampah \nCEDAR BARRENS FL: JUN-JUL, FR: JUL-SEPT CB E S2 G4 \nPhanopyrum gymnocarpon savannah panic grass \nSWAMPS S S2S3 G5 \nPhegopteris connectilis Northern Beechfern \nMOUNTAIN BOGS AND ROCKY SEEPS SPORULATION: JUN-AUG BR E S1 G5 \nPhemeranthus calcaricus Limestone Fame-flower \nGLADES FL: JUN-SEPT, FR: SEPT-OCT CB, RV S S3 G3 \nPhemeranthus mengesii Menge's Fame-flower", "basis": "exact taxon in state native-species conservation list"}, {"source": "TN–KY Plant Atlas", "scope": "TN–KY", "claim": "native", "url": "https://tennessee-kentucky.plantatlas.usf.edu/plant/species/1351"}], "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": 5, "band": "Modest", "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": -8, "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": "S2", "invasive": false, "invasive_rank": null, "harm_penalty": 0}, "factor_identity": {"name_used": "Perideridia americana", "basis": "atlas accepted identity; genus-level evidence; no NC species merge", "growth_habit_source": "TN–KY atlas growthHabit"}, "factors": {"raw": {"caterpillars": 0, "bees": 0, "specialists": 0, "birds": 0, "structure": ["Forb/herb"], "genus_used": null}, "pct": {"caterpillars": 0.17307692307692307, "bees": 0.24379652605459057, "specialists": 0.4323821339950372, "birds": 0.303970223325062, "structure": 0.5}, "composite": 0.272, "rank_pct": 0.031, "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": 8, "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"}}}