{"assessment":{"band":"Good","factor_identity":{"basis":"approved shared identity","growth_habit_source":"USDA PLANTS","name_used":"Muhlenbergia expansa"},"factor_scopes":{"bees":"Southeastern North America","birds":"North America","caterpillars":"Host genera of native Lepidoptera with established Virginia range; association and range overlap, not confirmed local feeding.","specialists":"Eastern North America","structure":"USDA species growth habit where matched; otherwise sourced atlas growth habit"},"factors":{"applied_insect_credit":0,"baseline_score":27,"composite":0.511,"insect_support":{"credit":0,"groups":{"ants":{"credit":0,"flower_visits":[],"label":"Ants","recorded_name_count":null,"recorded_names":[],"seed_interactions":[],"status":"unknown"},"beetles":{"credit":0,"flower_visits":[],"label":"Beetles","recorded_name_count":null,"recorded_names":[],"seed_interactions":[],"status":"unknown"},"flies":{"credit":0,"flower_visits":[],"label":"Flies","recorded_name_count":null,"recorded_names":[],"seed_interactions":[],"status":"unknown"},"moths_butterflies":{"credit":0,"flower_visits":[],"label":"Adult butterflies / moths","recorded_name_count":null,"recorded_names":[],"seed_interactions":[],"status":"unknown"},"other_hymenoptera":{"credit":0,"flower_visits":[],"label":"Other wasps","recorded_name_count":null,"recorded_names":[],"seed_interactions":[],"status":"unknown"},"other_insects":{"credit":0,"flower_visits":[],"label":"Other insects","recorded_name_count":null,"recorded_names":[],"seed_interactions":[],"status":"unknown"}},"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.","maximum_credit":5,"version":"insect-support-1"},"pct":{"bees":0.24379652605459057,"birds":0.6643920595533499,"caterpillars":0.6234491315136477,"specialists":0.4323821339950372,"structure":0.5},"rank_pct":0.251,"raw":{"bees":0,"birds":1,"caterpillars":4,"genus_used":null,"specialists":0,"structure":["Graminoid"]}},"fit_score":null,"native_basis":"native_supported","rarity_adjustment":0,"rarity_policy":"Conservation status is displayed separately and never changes ecological scores, including when unranked.","reason":"Calculated with the shared rules using Virginia host-range and shared ecological evidence.","reference":"NC native reference cohort, method 0.6.4; not a Virginia percentile","score":27,"scoring_inputs":{"harm_penalty":0,"invasive":false,"invasive_rank":null,"native":true,"state_rank":"SH"},"source_ids":["lep_va","globi","bigbee","avian","usdahabit","robertson","antseed"],"status":"scored_provisional","version":"shared-0.6.5"},"condition_evidence":{"light":{"evidence_id":"fact:f8e945e4e4efeba6fbc21faa271fd0cd32df593817e5b45e283da82c21267847","levels":[2,3,4],"policy":"selected-condition-categories-2","range":[2,4],"scope":{"kind":"unspecified"},"semantics":"source_light_categories_preserved_without_hour_conversion","source_field":"light","source_label":"NC Extension Plant Toolbox","source_url":"https://plants.ces.ncsu.edu/plants/muhlenbergia-expansa/","status":"mapped_selected_fact"},"moisture":{"evidence_id":"fact:51d020892e2547d962cdde2031fc73b582b94d2656d62a8b205e09a4d6b20246","levels":[3],"policy":"selected-condition-categories-2","range":[3,3],"scope":{"kind":"unspecified"},"semantics":"source_drainage_or_moisture_categories_preserved","source_field":"moisture_categories","source_label":"NC Extension Plant Toolbox","source_url":"https://plants.ces.ncsu.edu/plants/muhlenbergia-expansa/","status":"mapped_selected_fact"},"ph":{"basis":["Bound printed by the source; open end from USDA NRCS soil reaction classes"],"categories":["Acid (<6.0)"],"evidence_id":"fact:2adc53f4b88f878b789baf65c5eece09e09bd49ea232a54b642f1797882f75c0","policy":"soil-ph-categories-1","range":[4.5,6],"scope":{"kind":"unspecified"},"semantics":"source_characteristic","source_field":"soil_ph_categories","source_label":"NC Extension Plant Toolbox","source_url":"https://plants.ces.ncsu.edu/plants/muhlenbergia-expansa/","status":"mapped_selected_fact"}},"evidence":{"fit_score":null,"growth_habit":["Graminoid"],"invasive_status":{"status":"unresolved"},"native_status":{"status":"native_supported"},"occurrence":{"county_fips":["51081"],"meaning":"Recorded occurrence; not a county native-range assertion"},"quercus_score":null,"regional":{"county_fips":["51081"],"growth_habit":null,"growth_habit_source":null,"invasive":null,"invasive_evidence":[],"invasive_rank":null,"native":true,"native_basis":"state_source","native_decided_by":"va_heritage","native_evidence":[{"claim":"native","flag":"N","matched_name":"Muhlenbergia expansa","scope":"VA","source":"va_atlas","url":"https://vaplantatlas.org/index.php?do=plant&plant=1615"},{"basis":"exact taxon in the state heritage program list of native plants","claim":"native","matched_name":"Muhlenbergia expansa","scope":"VA","source":"va_heritage","srank":"SH","url":"https://dcr.am.virginia.gov/natural-heritage/document/plantlist-current.pdf"},{"claim":"native","matched_name":"Muhlenbergia expansa","scope":"L48","source":"usda","text":"L48:N","url":"https://plants.usda.gov/"},{"claim":"native","matched_name":"Muhlenbergia expansa","scope":"NC","source":"nc_flora","url":"https://auth1.dpr.ncparks.gov/flora/"},{"basis":"species account without the alien asterisk","claim":"native_distribution","matched_name":"Muhlenbergia expansa","scope":"AL-AR-DC-DE-FL-GA-KY-LA-MD-MS-NC-NJ-PA-SC-TN-VA-WV","source":"weakley_fsus","url":"https://fsus.ncbg.unc.edu/"},{"basis":"Native field of the Northern Tier edition; the state is in its distribution","claim":"native","record_id":2133,"scope":"DC-DE-IL-IN-KY-MD-NJ-NY-OH-PA-VA-WV","source":"floraquest_northern_tier","url":"https://fsus.ncbg.unc.edu/"},{"basis":"NatureServe subnational native or exotic flag for this state","claim":"native","matched_name":"Muhlenbergia capillaris var. trichopodes","scope":"VA","source":"natureserve_explorer","srank":"SH","url":"https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.150342/Muhlenbergia_capillaris_var_trichopodes"}],"native_explanation":"Virginia DCR Natural Heritage rare plant list (government agency, state claim) gives the value. Speaks for its own area (NC), not this state: Vascular Plants of North Carolina (NC Natural Heritage Program).","native_provenance":{"flags":[],"source":"va_heritage","specificity":"state","tier":"government"},"native_status":"native_supported","package_native_status":"native_supported","source_ids":["va_atlas:VA:1615"],"source_name":"Muhlenbergia expansa","source_refs":["gbif_specimens","natureserve_explorer","va_atlas","va_heritage"],"source_url":"https://vaplantatlas.org/index.php?do=plant&plant=1615","state_rank":"SH"},"source_refs":["gbif_specimens","natureserve_explorer","va_atlas","va_heritage"],"source_url":"https://vaplantatlas.org/index.php?do=plant&plant=1615","state_rank":{"value":"SH"}},"fit_inputs":{"light":[2,4],"moisture":[3,3],"ph":[4.5,6]},"fit_provenance":{"counties":"USDA PLANTS: recorded in 22 NC counties","light":"NC Extension Plant Toolbox","moisture":"NC Extension Plant Toolbox","ph":"NC Extension Plant Toolbox pH categories (Bound printed by the source; open end from USDA NRCS soil reaction classes)"},"fit_record":{"band":"Good","condition_evidence":{"light":{"evidence_id":"fact:f8e945e4e4efeba6fbc21faa271fd0cd32df593817e5b45e283da82c21267847","levels":[2,3,4],"policy":"selected-condition-categories-2","range":[2,4],"scope":{"kind":"unspecified"},"semantics":"source_light_categories_preserved_without_hour_conversion","source_field":"light","source_label":"NC Extension Plant Toolbox","source_url":"https://plants.ces.ncsu.edu/plants/muhlenbergia-expansa/","status":"mapped_selected_fact"},"moisture":{"evidence_id":"fact:51d020892e2547d962cdde2031fc73b582b94d2656d62a8b205e09a4d6b20246","levels":[3],"policy":"selected-condition-categories-2","range":[3,3],"scope":{"kind":"unspecified"},"semantics":"source_drainage_or_moisture_categories_preserved","source_field":"moisture_categories","source_label":"NC Extension Plant Toolbox","source_url":"https://plants.ces.ncsu.edu/plants/muhlenbergia-expansa/","status":"mapped_selected_fact"},"ph":{"basis":["Bound printed by the source; open end from USDA NRCS soil reaction classes"],"categories":["Acid (<6.0)"],"evidence_id":"fact:2adc53f4b88f878b789baf65c5eece09e09bd49ea232a54b642f1797882f75c0","policy":"soil-ph-categories-1","range":[4.5,6],"scope":{"kind":"unspecified"},"semantics":"source_characteristic","source_field":"soil_ph_categories","source_label":"NC Extension Plant Toolbox","source_url":"https://plants.ces.ncsu.edu/plants/muhlenbergia-expansa/","status":"mapped_selected_fact"}},"county_fips":["01003","01023","01025","01035","01039","01053","01061","01069","01097","01099","01129","13075","13131","13155","13177","13185","13191","13205","13275","13321","37013","37017","37019","37031","37047","37049","37061","37079","37085","37101","37103","37105","37117","37125","37133","37141","37147","37153","37163","37165","37187","37191","45003","45015","45019","45027","45029","45033","45035","45041","45043","45051","45053","45057","45061","45065","45069","45079","45081","45089","51081"],"fit_inputs":{"light":[2,4],"moisture":[3,3],"ph":[4.5,6]},"fit_note":"Shared sunlight, moisture and pH calculation; county geography is an additional layer. Missing source traits remain unknown.","fit_provenance":{"counties":"USDA PLANTS: recorded in 22 NC counties","light":"NC Extension Plant Toolbox","moisture":"NC Extension Plant Toolbox","ph":"NC Extension Plant Toolbox pH categories (Bound printed by the source; open end from USDA NRCS soil reaction classes)"},"garden_suitability":{"default_excluded":false,"flags":[],"review_status":"not_assessed","suggestions_excluded":false},"invasive_rank":false,"native_eligible":true,"quercus_score":27,"state":"VA"},"garden_suitability":{"default_excluded":false,"flags":[],"review_status":"not_assessed","suggestions_excluded":false},"growing_observations":{"floraquest_carolinas_georgia":{"matched_name":"Muhlenbergia expansa","retrieved":"2026-10-04T13:31:16.252589+00:00","scope":{"kind":"region","region_id":"floraquest_nc_sc_ga"},"scope_note":"Original regional ecological and identification evidence; no location-specific gardening adjustments.","source_label":"Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition","source_name":"Muhlenbergia expansa","source_record_id":2133,"source_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_url":"https://fsus.ncbg.unc.edu/","trait_evidence":[{"field":"habitat_description","source_column":"HabitatText","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":2133,"source_table":"Organism","value":"Pine savannas, pine flatwoods, mesic areas in sandhill-pocosin ecotones."},{"field":"geographic_range_description","source_column":"Description","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":2133,"source_table":"Organism","value":"Se. Virginia south to Florida, west to e. Texas (nearly exactly the range of Pinus palustris )."},{"field":"phenology_source_text","source_column":"Phenology","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":2133,"source_table":"Organism","value":"Sep-Oct."},{"field":"taxonomic_synonymy","source_column":"Synonymy","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":2133,"source_table":"Organism","value":"[= ETx1, F, FNA25, GW1, HC, K4, POWO, RAB, S, Va, Gustafson & Peterson (2007); = Muhlenbergia capillaris (Lam.) Trin. var. trichopodes (Elliott) Vasey — C, K1, NS, WH3, Morden & Hatch (1989); = Muhlenbergia trichopoides (Elliott) Chapm. — S13; Muhlenbergia capillaris (Lam.) Trin. — Tx; Muhlenbergia sericea (Michx.) P.M.Peterson — FlGr]"},{"field":"botanical_comments","source_column":"Comments","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":2133,"source_table":"Organism","value":"See M. capillaris for a discussion of recent studies on the M. capillaris complex. An important part of the grassy component of many longleaf pine savannas, M. expansa ’s flowering is stimulated by fire, and, lacking fire, it may be found in large populations in solely vegetative condition."},{"field":"identification_notes","source_column":"IdentificationNotes","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":2133,"source_table":"Organism","value":"Muhlenbergia expansa can be distinguished in sterile condition from other savanna bunchgrasses ( Sporobolus teretifolius , S. pinetorum , S. floridanus, S. curtissii, Aristida stricta , and A. beyrichiana ) by the following characteristics: old leaf bases fibrous and curly (rather than hardened and cartilaginous) and ligules 1-3 mm long (rather than 0.2 to 0.5 mm long). The open panicle somewhat resembles that of several species of similar habitat which often co-occur with M. expansa – Sporobolus teretifolius, S. pinetorum , S. curtissii, S. floridanus , and S. brevipilis , but the panicle of M. expansa is capillary, flexuous, and fragile, tending to break up over the winter (vs. fine-textured but not capillary, the branches rigid and ascending, more likely to persist over the winter in relatively intact condition). The vegetative characters listed above and under Sporobolus brevipilis are also useful."},{"field":"heliophily_index","source_column":"HIndex","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":2133,"source_table":"Organism","value":9},{"field":"regional_wetland_indicators","source_column":"WetlandStatus1..5","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":2133,"source_table":"Organism","value":[{"source_column":"WetlandStatus1","value":"FACW"},{"source_column":"WetlandStatus2","value":"FACW"},{"source_column":"WetlandStatus4","value":"FACW"},{"source_column":"WetlandStatus5","value":"FACW"}]},{"field":"habitat_moisture_categories","source_column":"Attr2","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":2133,"source_table":"GraphicKey","value":["Moist","Wet"]},{"field":"habitat_light_categories","source_column":"Attr3","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":2133,"source_table":"GraphicKey","value":["Full sun"]},{"field":"graphic_key_source_attributes","source_column":"Attr0..25","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":2133,"source_table":"GraphicKey","value":{"Attr0":"gr03","Attr1":"nc_cp,nc_pd,sc_cp,sc_pd,ga_cp,","Attr10":"a,no","Attr11":"g","Attr12":"me","Attr13":"3Bw7","Attr2":"Moist,Wet","Attr3":"Sun","Attr3a":"y","Attr3a_subregion":"native_nc_cp:y,native_nc_pd:y,native_sc_cp:y,native_sc_pd:y,native_ga_cp:y,","Attr4":" 8-11","Attr5":"h","Attr6":"le,mo","Attr7":"l","Attr8":"1","Attr9":"g"}},{"field":"bloom_season","source_column":"Phenology","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":2133,"source_table":"Organism","value":"September to October"}],"values":{"bloom_season":"September to October","botanical_comments":"See M. capillaris for a discussion of recent studies on the M. capillaris complex. An important part of the grassy component of many longleaf pine savannas, M. expansa ’s flowering is stimulated by fire, and, lacking fire, it may be found in large populations in solely vegetative condition.","geographic_range_description":"Se. Virginia south to Florida, west to e. Texas (nearly exactly the range of Pinus palustris ).","graphic_key_source_attributes":{"Attr0":"gr03","Attr1":"nc_cp,nc_pd,sc_cp,sc_pd,ga_cp,","Attr10":"a,no","Attr11":"g","Attr12":"me","Attr13":"3Bw7","Attr2":"Moist,Wet","Attr3":"Sun","Attr3a":"y","Attr3a_subregion":"native_nc_cp:y,native_nc_pd:y,native_sc_cp:y,native_sc_pd:y,native_ga_cp:y,","Attr4":" 8-11","Attr5":"h","Attr6":"le,mo","Attr7":"l","Attr8":"1","Attr9":"g"},"habitat_description":"Pine savannas, pine flatwoods, mesic areas in sandhill-pocosin ecotones.","habitat_light_categories":["Full sun"],"habitat_moisture_categories":["Moist","Wet"],"heliophily_index":9,"identification_notes":"Muhlenbergia expansa can be distinguished in sterile condition from other savanna bunchgrasses ( Sporobolus teretifolius , S. pinetorum , S. floridanus, S. curtissii, Aristida stricta , and A. beyrichiana ) by the following characteristics: old leaf bases fibrous and curly (rather than hardened and cartilaginous) and ligules 1-3 mm long (rather than 0.2 to 0.5 mm long). The open panicle somewhat resembles that of several species of similar habitat which often co-occur with M. expansa – Sporobolus teretifolius, S. pinetorum , S. curtissii, S. floridanus , and S. brevipilis , but the panicle of M. expansa is capillary, flexuous, and fragile, tending to break up over the winter (vs. fine-textured but not capillary, the branches rigid and ascending, more likely to persist over the winter in relatively intact condition). The vegetative characters listed above and under Sporobolus brevipilis are also useful.","phenology_source_text":"Sep-Oct.","regional_wetland_indicators":[{"source_column":"WetlandStatus1","value":"FACW"},{"source_column":"WetlandStatus2","value":"FACW"},{"source_column":"WetlandStatus4","value":"FACW"},{"source_column":"WetlandStatus5","value":"FACW"}],"taxonomic_synonymy":"[= ETx1, F, FNA25, GW1, HC, K4, POWO, RAB, S, Va, Gustafson & Peterson (2007); = Muhlenbergia capillaris (Lam.) Trin. var. trichopodes (Elliott) Vasey — C, K1, NS, WH3, Morden & Hatch (1989); = Muhlenbergia trichopoides (Elliott) Chapm. — S13; Muhlenbergia capillaris (Lam.) Trin. — Tx; Muhlenbergia sericea (Michx.) P.M.Peterson — FlGr]"}},"ncsu_sitemap":{"matched_name":"Muhlenbergia expansa","retrieved":"2026-10-04T02:40:05.490300+00:00","scope":{"kind":"unspecified"},"scope_note":"Source-reported species characteristics; not a location-specific estimate.","source_label":"NC Extension Plant Toolbox","source_sha256":"08802f291f2e1d492ea4a3934cdef5eeeb4877cc697ace66553be1b5d97f7633","source_url":"https://plants.ces.ncsu.edu/plants/muhlenbergia-expansa/","trait_evidence":[{"expected_source_name":"Muhlenbergia expansa","field":"hardiness_zones","original_field":"hardiness","record_id":"trait:281bc6a57f64810a74826d03e284488fa580c6f8941b73801209dc89e2871d52","retrieved_at":"2026-10-04T02:40:05.490300+00:00","scope":{"kind":"unspecified"},"scope_note":"Species profile; distribution and native-status discovery filters do not establish local growing or bloom timing.","source":"ncsu","source_name":"Muhlenbergia expansa","source_sha256":"08802f291f2e1d492ea4a3934cdef5eeeb4877cc697ace66553be1b5d97f7633","source_url":"https://plants.ces.ncsu.edu/plants/muhlenbergia-expansa/","status":"eligible_fact","taxon_id":"taxon:1e820c67-ee3d-5fac-ad57-8a990ab4784c","value":["6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b"]},{"expected_source_name":"Muhlenbergia expansa","field":"flower_color","original_field":"flower_color","record_id":"trait:378002dcfb4dea007562582d2997fcd6429fa5e0c6175346890446d7749f43e8","retrieved_at":"2026-10-04T02:40:05.490300+00:00","scope":{"kind":"unspecified"},"scope_note":"Species profile; 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