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Gray — K1, SE1; > Silphium asteriscus L. var. laevicaule DC. — K1; > Silphium dentatum Elliott — SE1; > Silphium dentatum Elliott var. angustatum (A.Gray) L.M.Perry — Perry (1937); > Silphium dentatum Elliott var. dentatum — Perry (1937); > Silphium elliottii Small — S; > Silphium incisum Greene — S; ~ Silphium nodosum Small; > Silphium nodum Small — S]"},{"field":"botanical_comments","source_column":"Comments","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":6346,"source_table":"Organism","value":"This highly variable species is poorly understood."},{"field":"heliophily_index","source_column":"HIndex","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":6346,"source_table":"Organism","value":7},{"field":"habitat_moisture_categories","source_column":"Attr2","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":6346,"source_table":"GraphicKey","value":["Dry","Moist"]},{"field":"habitat_light_categories","source_column":"Attr3","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":6346,"source_table":"GraphicKey","value":["Partial shade","Full sun"]},{"field":"graphic_key_source_attributes","source_column":"Attr0..25","source_database_sha256":"684f6b364ff9f3023aa61ed02ae50f6f6d6d4d3bcf76847b78ab769ae0453469","source_record_id":6346,"source_table":"GraphicKey","value":{"Attr0":"gr08","Attr1":"nc_mt,nc_pd,sc_cp,sc_mt,sc_pd,ga_cp,ga_mt,ga_pd,","Attr10":"en,to","Attr11":"bo","Attr12":"ye","Attr13":"ye","Attr14":"none,scal","Attr2":"Dry,Moist","Attr3":"Part,Sun","Attr3a":"y","Attr3a_subregion":"native_nc_mt:y,native_nc_pd:y,native_sc_cp:y,native_sc_mt:y,native_sc_pd:y,native_ga_cp:y,native_ga_mt:y,native_ga_pd:y,","Attr4":" 6-10","Attr5":"gl,pu","Attr6":"n","Attr7":"n","Attr8":"alt,opp","Attr9":"si"}}],"values":{"botanical_comments":"This highly variable species is poorly understood.","geographic_range_description":"North Carolina south to s. Florida and Alabama.","graphic_key_source_attributes":{"Attr0":"gr08","Attr1":"nc_mt,nc_pd,sc_cp,sc_mt,sc_pd,ga_cp,ga_mt,ga_pd,","Attr10":"en,to","Attr11":"bo","Attr12":"ye","Attr13":"ye","Attr14":"none,scal","Attr2":"Dry,Moist","Attr3":"Part,Sun","Attr3a":"y","Attr3a_subregion":"native_nc_mt:y,native_nc_pd:y,native_sc_cp:y,native_sc_mt:y,native_sc_pd:y,native_ga_cp:y,native_ga_mt:y,native_ga_pd:y,","Attr4":" 6-10","Attr5":"gl,pu","Attr6":"n","Attr7":"n","Attr8":"alt,opp","Attr9":"si"},"habitat_description":"Woodlands, roadsides.","habitat_light_categories":["Partial shade","Full sun"],"habitat_moisture_categories":["Dry","Moist"],"heliophily_index":7,"phenology_source_text":"Jul-Sep.","taxonomic_synonymy":"[= F, POWO, W; = Silphium asteriscus L. var. dentatum (Elliott) Chapm. — FNA21, K4; = Silphium asteriscus L. var. laevicaule DC. — NS; = Silphium dentatum Elliott var. dentatum — RAB; Silphium asteriscus L. — Fl7, Tn, WH3; > Silphium asteriscus L. var. angustatum A. Gray — K1, SE1; > Silphium asteriscus L. var. laevicaule DC. — K1; > Silphium dentatum Elliott — SE1; > Silphium dentatum Elliott var. angustatum (A.Gray) L.M.Perry — Perry (1937); > Silphium dentatum Elliott var. dentatum — Perry (1937); > Silphium elliottii Small — S; > Silphium incisum Greene — S; ~ Silphium nodosum Small; > Silphium nodum Small — S]"}},"wildflower_center":{"matched_name":"Silphium dentatum","retrieved":"2026-10-05T19:53:51.206169+00:00","scope":{"kind":"unspecified"},"scope_note":"Source-reported species characteristics; not a location-specific estimate.","source_label":"Lady Bird Johnson Wildflower Center","source_sha256":"52ab3ee787d206ae64462063673f535435f65735a5706d9bdf29b73c09e96104","source_url":"https://www.wildflower.org/plants/result.php?id_plant=SIASL2","trait_evidence":[{"expected_source_name":"Silphium asteriscus var. laevicaule","field":"life_cycle","original_field":"life_cycle","record_id":"trait:7b1c4d28478047baf53c4c85b20fd3859bd918623aba4fe9ceafaec68351cd4e","retrieved_at":"2026-10-05T19:53:51.206169+00:00","scope":{"kind":"unspecified"},"scope_note":"Species profile; distribution and native-status discovery filters do not establish local growing or bloom timing.","source":"wildflower","source_name":"Silphium asteriscus var. laevicaule","source_sha256":"52ab3ee787d206ae64462063673f535435f65735a5706d9bdf29b73c09e96104","source_url":"https://www.wildflower.org/plants/result.php?id_plant=SIASL2","status":"eligible_fact","taxon_id":"taxon:47b29b71-6af3-5211-bbd4-6861071ef4b7","value":["Perennial"]},{"expected_source_name":"Silphium asteriscus var. laevicaule","field":"flower_color","original_field":"flower_color","record_id":"trait:9e00c9005dcc8fccfd56d3d1eb378f93ec1b4fd60ad1facda9e18792bacbfdc3","retrieved_at":"2026-10-05T19:53:51.206169+00:00","scope":{"kind":"unspecified"},"scope_note":"Species profile; distribution and native-status discovery filters do not establish local growing or bloom timing.","source":"wildflower","source_name":"Silphium asteriscus var. laevicaule","source_sha256":"52ab3ee787d206ae64462063673f535435f65735a5706d9bdf29b73c09e96104","source_url":"https://www.wildflower.org/plants/result.php?id_plant=SIASL2","status":"eligible_fact","taxon_id":"taxon:47b29b71-6af3-5211-bbd4-6861071ef4b7","value":["Yellow"]},{"expected_source_name":"Silphium asteriscus var. laevicaule","field":"height_description","original_field":"height","record_id":"trait:a9a4311e8513e88f32fae4252de69ca58a60261c74d1576e10e030b7e12f3221","retrieved_at":"2026-10-05T19:53:51.206169+00:00","scope":{"kind":"unspecified"},"scope_note":"Species profile; distribution and native-status discovery filters do not establish local growing or bloom timing.","source":"wildflower","source_name":"Silphium asteriscus var. laevicaule","source_sha256":"52ab3ee787d206ae64462063673f535435f65735a5706d9bdf29b73c09e96104","source_url":"https://www.wildflower.org/plants/result.php?id_plant=SIASL2","status":"eligible_fact","taxon_id":"taxon:47b29b71-6af3-5211-bbd4-6861071ef4b7","value":{"approximate":true,"kind":"upper_bound","max":5,"unit":"feet"}}],"values":{"flower_color":["Yellow"],"height_description":"Up to about 5 feet","life_cycle":["Perennial"]}}},"light_range":["part shade","full sun"],"light_source":"FloraQuest: Carolinas, Georgia (Southeastern Flora Team)","native_synthesis":{"claims":[{"claim":"native","matched_name":"Silphium asteriscus var. laevicaule","scope":"NC","source":"nc_flora","url":"https://auth1.dpr.ncparks.gov/flora/"},{"claim":"native","matched_name":"Silphium dentatum","scope":"L48","source":"usda","text":"L48:N","url":"https://plants.usda.gov/"},{"claim":"native","matched_name":"Silphium dentatum","scope":"NC","source":"nc_flora","url":"https://auth1.dpr.ncparks.gov/flora/"}],"county_native_range":"unresolved","explanation":"Source scopes are preserved. State occurrence alone does not establish nativity; combined regional evidence is labeled estimated.","label":"Native status unresolved in Georgia","rule":"southeast-native-synthesis-1","status":"unresolved"},"source_name":"Silphium asteriscus var. laevicaule","taxon_id":"taxon:47b29b71-6af3-5211-bbd4-6861071ef4b7","revision":"publish:5809c037-0e9a-430a-8008-5ab6f69800c0","photos":[]}