{"assessment":{"band":"Harmful","fit_score":null,"harm":null,"harm_source":null,"invasive_evidence":[{"category":"Threat 3 (occasionally invasive)","listed":true,"rank":null,"scientific_name":"Poa bulbosa","state":"WV","url":"https://wvdnr.gov/wp-content/uploads/2025/04/WV-Priority-Invasive-Plants-List-2025.pdf"}],"native_basis":"not_native","rarity_adjustment":null,"rarity_policy":"Conservation status is displayed separately and never changes ecological scores, including when unranked.","reason":"Listed invasive in West Virginia; do not plant. Provisional −30 Harmful baseline without a shared severity profile.","reference":"NC native reference cohort, method 0.6.4; not a West Virginia percentile","score":-30,"scoring_inputs":{"harm_penalty":0,"invasive":true,"invasive_rank":null,"native":false,"state_rank":"SNA"},"severity_basis":"provisional_unranked_default","severity_mapping":"No supported severity category crosswalk; shared provisional unranked-invasive default","status":"scored_invasive","version":"shared-0.6.5"},"condition_evidence":{},"evidence":{"fit_score":null,"growth_habit":null,"invasive_status":{"status":"listed"},"native_status":{"status":"not_native"},"occurrence":{"county_fips":[],"meaning":"Recorded occurrence; not a county native-range assertion"},"quercus_score":null,"regional":{"county_fips":[],"growth_habit":null,"growth_habit_source":null,"invasive":true,"invasive_evidence":[{"category":"Threat 3 (occasionally invasive)","listed":true,"rank":null,"scientific_name":"Poa bulbosa","state":"WV","url":"https://wvdnr.gov/wp-content/uploads/2025/04/WV-Priority-Invasive-Plants-List-2025.pdf"}],"invasive_rank":null,"native":false,"native_basis":"state_source","native_decided_by":"wv_invasive","native_evidence":[{"claim":"introduced","scope":"WV","source":"wv_invasive","url":"https://wvdnr.gov/wp-content/uploads/2025/04/WV-Priority-Invasive-Plants-List-2025.pdf"},{"claim":"introduced","matched_name":"Poa bulbosa","scope":"L48","source":"usda","text":"L48:I","url":"https://plants.usda.gov/"},{"basis":"NatureServe subnational native or exotic flag for this state","claim":"introduced","matched_name":"Poa bulbosa","scope":"WV","source":"natureserve_explorer","srank":"SNA","url":"https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.155018/Poa_bulbosa"}],"native_explanation":"West Virginia DNR invasive plant list (government agency, state claim) gives the value.","native_provenance":{"flags":[],"source":"wv_invasive","specificity":"state","tier":"government"},"native_status":"not_native","package_native_status":"not_native","source_ids":["natureserve_explorer:WV:ELEMENT_GLOBAL.2.155018"],"source_name":"Poa bulbosa","source_refs":["natureserve_explorer","wv_invasive"],"source_url":"https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.155018","state_rank":"SNA"},"source_refs":["natureserve_explorer","wv_invasive"],"source_url":"https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.155018","state_rank":{"value":"SNA"}},"fit_inputs":{"light":[2,4],"moisture":[1,2],"ph":[5,7.2]},"fit_provenance":{"light":"USDA PLANTS shade class 'Medium', read inverted (coarse)","moisture":"USACE wetland occurrence proxy","ph":"USDA PLANTS"},"fit_record":{"band":"Harmful","condition_evidence":{},"county_fips":["05007","05029","05115","05119","05141","05143","21117","21125","21151","47057","47097","47125","47149","47157","47179","47183"],"fit_inputs":{"light":[2,4],"moisture":[1,2],"ph":[5,7.2]},"fit_note":"Shared sunlight, moisture and pH calculation; county geography is an additional layer. Missing source traits remain unknown.","fit_provenance":{"light":"USDA PLANTS shade class 'Medium', read inverted (coarse)","moisture":"USACE wetland occurrence proxy","ph":"USDA PLANTS"},"garden_suitability":{"default_excluded":false,"flags":[],"review_status":"not_assessed","suggestions_excluded":false},"invasive_rank":true,"native_eligible":false,"quercus_score":-30,"state":"WV"},"garden_suitability":{"default_excluded":false,"flags":[],"review_status":"not_assessed","suggestions_excluded":false},"growing_observations":{"eol_usda":{"archive_doi":"10.5281/zenodo.22129810","matched_name":"Poa bulbosa","retrieved":"2026-09-30","scope":"Nationwide approximate species characteristics; tolerance categories do not specify sun hours or moisture requirements","scoring_allowed":false,"source_label":"USDA PLANTS via EOL TraitBank","source_sha256":"04bb6a5292502ddc757bb909f4151de4b9aaea042223dfb486ffe2a94a2564db","source_url":"http://plants.usda.gov/core/profile?symbol=POBU","trait_evidence":[{"citation":"The PLANTS Database, United States Department of Agriculture, National Resources Conservation Service. http://plants.usda.gov/","eol_page":"https://eol.org/pages/1114601","field":"drought_tolerance","method":"Compares the relative tolerance of the plant to drought conditions to other species with the same growth habit from the same geographical region. Drought tolerance is defined here in the following fashion: Imagine that in an acre of land there are low areas that have heavy soil and tend to accumulate more soil moisture, and higher areas that have coarse textured soil and tend to accumulate less soil moisture. Some plant species are most frequently found growing in the higher areas with the coarse soil texture. These plant species are considered to be more drought tolerant than the species that are frequently found in the low areas with fine textured soil.","source_url":"http://plants.usda.gov/core/profile?symbol=POBU","trait_id":"R133-PK288755790","trait_label":"drought tolerance","value":"medium (normal)"},{"citation":"The PLANTS Database, United States Department of Agriculture, National Resources Conservation Service. http://plants.usda.gov/","eol_page":"https://eol.org/pages/1114601","field":"moisture_use","method":"","source_url":"http://plants.usda.gov/core/profile?symbol=POBU","trait_id":"R133-PK288766879","trait_label":"moisture use","value":"medium"},{"citation":"The PLANTS Database, United States Department of Agriculture, National Resources Conservation Service. http://plants.usda.gov/","eol_page":"https://eol.org/pages/1114601","field":"shade_tolerance","method":"","source_url":"http://plants.usda.gov/core/profile?symbol=POBU","trait_id":"R133-PK288787111","trait_label":"shade tolerance","value":"medium (normal)"}],"values":{"drought_tolerance":"medium (normal)","moisture_use":"medium","shade_tolerance":"medium (normal)"}},"usda":{"matched_name":"Poa bulbosa","retrieved":"2026-09-24","scope":"Nationwide species characteristics; local growing conditions may vary","source_label":"USDA PLANTS","source_url":"https://plants.usda.gov/","usda_id":24897,"values":{"bloom_season":"Late Spring","flower_color":"Yellow","foliage_color":"Green","fruit_season_begin":"Summer","fruit_season_end":"Summer","growth_architecture":"Bunch","growth_rate":"Moderate","height_ft":1.5,"leaf_retention":"No"}}},"native_synthesis":{"claims":[{"claim":"introduced","scope":"WV","source":"wv_invasive","url":"https://wvdnr.gov/wp-content/uploads/2025/04/WV-Priority-Invasive-Plants-List-2025.pdf"},{"claim":"introduced","matched_name":"Poa bulbosa","scope":"L48","source":"usda","text":"L48:I","url":"https://plants.usda.gov/"},{"basis":"NatureServe subnational native or exotic flag for this state","claim":"introduced","matched_name":"Poa bulbosa","scope":"WV","source":"natureserve_explorer","srank":"SNA","url":"https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.155018/Poa_bulbosa"}],"county_native_range":"unresolved","decided_by":"wv_invasive","explanation":"West Virginia DNR invasive plant list (government agency, state claim) gives the value.","label":"Not native to West Virginia","provenance":{"flags":[],"source":"wv_invasive","specificity":"state","tier":"government"},"rule":"fact-hierarchy-2","status":"not_native"},"source_name":"Poa bulbosa","taxon_id":"taxon:afdb8438-41a5-555e-811e-351370dc0b1d","revision":"publish:d412fcf4-883a-4c06-b542-542693807821","photos":[{"id":"poa-bulbosa-9525195","src":"/api/photos/image/0309c63f5cb649cf4f66ede94acb2cb051ab1056fdc67c1061d6ac89a78a7ed3.jpg","view":"bloom","alt":"Poa bulbosa — flower photograph","width":561,"height":746,"artist":"Sheri Hagwood","license":"Public domain","license_url":"https://commons.wikimedia.org/wiki/Commons:Public_domain","source_url":"https://commons.wikimedia.org/wiki/File:Poabulbosa.jpg","changes":"Wikimedia thumbnail; no crop or retouching","kind":"photo"}]}