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Access NHI data
for research and planning purposes.
Explore
Wisconsin's rare species and natural communities.
Report
a plant or non-game animal. [exit DNR]
Review
the natural heritage working list.
Contact information
For more information on NHI data, contact:
Julie Bleser
NHI data manager
608-266-7308

Natural Heritage Inventory data county tool

Walworth County Natural Heritage Inventory data

The following is a list of species and natural features on the Natural Heritage Working List that have been documented in Walworth County. These data are provided for general planning and assessment purposes only and should not be used for screening or reviewing proposed land development or land management projects. Learn about other methods for obtaining data, including project-specific data.

Walworth County graphic

Click on the table headings to sort the table, and click on a heading again to change the sort order. The scientific names link to pages with more information about each species or natural community. The count shown is the number of locations in Walworth County where each species or feature has been documented and incorporated in the NHI Database. There are likely many additional locations which have not yet been documented. Also, these data were last updated on July 18, 2017, so there may be more recent county records not reflected here. Return to the county tool.
Scientific Name Common Name WI
Status
Federal
Status
Group
Acris blanchardi Blanchard's Cricket Frog END Rare Amphibians
Aflexia rubranura Red-tailed Prairie Leafhopper END Rare Leafhoppers and True Bugs
Agalinis auriculata Earleaf Foxglove SC Rare Plants
Agrimonia parviflora Swamp Agrimony SC Rare Plants
Alasmidonta marginata Elktoe SC/P Rare Mussels and Clams
Alasmidonta viridis Slippershell Mussel THR Rare Mussels and Clams
Ammodramus henslowii Henslow's Sparrow THR SOC Rare Birds
Anticlea elegans ssp. glaucus White Camas SC Rare Plants
Aplectrum hyemale Putty Root SC Rare Plants
Ardea alba Great Egret THR Rare Birds
Arnoglossum plantagineum Prairie Indian-plantain SC Rare Plants
Asclepias lanuginosa Woolly Milkweed THR Rare Plants
Asclepias ovalifolia Dwarf Milkweed THR Rare Plants
Asclepias purpurascens Purple Milkweed END Rare Plants
Asclepias sullivantii Prairie Milkweed THR Rare Plants
Bartramia longicauda Upland Sandpiper THR Rare Birds
Besseya bullii Kitten Tails THR Rare Plants
Bird Rookery Bird Rookery SC Miscellaneous Elements
Bog relict Bog Relict NA Herbaceous Communities - Sedge Meadows, Fens, and Bogs
Bombus affinis Rusty-patched Bumble Bee SC/FL LE Rare Ants, Wasps, and Bees
Buteo lineatus Red-shouldered Hawk THR Rare Birds
Calcareous fen Calcareous Fen NA Herbaceous Communities - Sedge Meadows, Fens, and Bogs
Calephelis muticum Swamp Metalmark END SOC Rare Butterflies and Moths
Camassia scilloides Wild Hyacinth END Rare Plants
Carex suberecta Prairie Straw Sedge SC Rare Plants
Carex swanii Swan Sedge SC Rare Plants
Carex sychnocephala Many-headed Sedge SC Rare Plants
Chlidonias niger Black Tern END SOC Rare Birds
Cirsium hillii Hill's Thistle THR SOC Rare Plants
Conioselinum chinense Hemlock-parsley END Rare Plants
Cuscuta glomerata Rope Dodder SC Rare Plants
Cypripedium candidum White Lady's-slipper THR Rare Plants
Dry prairie Dry Prairie NA Herbaceous Communities - Prairies
Dry-mesic prairie Dry-mesic Prairie NA Herbaceous Communities - Prairies
Eleocharis compressa var. compressa Flat-stemmed Spike-rush SC Rare Plants
Eleocharis quinqueflora Few-flowered Spike-rush SC Rare Plants
Eleocharis rostellata Beaked Spike-rush THR Rare Plants
Emergent marsh Emergent Marsh NA Herbaceous Communities - Marshes
Empidonax virescens Acadian Flycatcher THR Rare Birds
Emydoidea blandingii Blanding's Turtle SC/P SOC Rare Reptiles
Enallagma basidens Double-striped Bluet SC/N Rare Dragonflies and Damselflies
Ephemeral pond Ephemeral Pond NA Lakes and Ponds
Epilobium strictum Downy Willow-herb SC Rare Plants
Equisetum palustre Marsh Horsetail SC Rare Plants
Erimyzon sucetta Lake Chubsucker SC/N Rare Fishes
Etheostoma microperca Least Darter SC/N Rare Fishes
Eurybia furcata Forked Aster THR Rare Plants
Fundulus dispar Starhead Topminnow END Rare Fishes
Geothlypis formosa Kentucky Warbler THR Rare Birds
Helmitheros vermivorum Worm-eating Warbler END Rare Birds
Herp Hibernaculum Herp Hibernaculum SC Miscellaneous Elements
Houstonia caerulea Azure Bluets SC Rare Plants
Hypericum sphaerocarpum Round-fruited St. John's Wort THR Rare Plants
Icteria virens Yellow-breasted Chat SC/M Rare Birds
Ischnura kellicotti Lilypad Forktail SC/N Rare Dragonflies and Damselflies
Ixobrychus exilis Least Bittern SC/M Rare Birds
Lake--deep, hard, drainage Lake--Deep, Hard, Drainage NA Lakes and Ponds
Lake--hard bog Lake--Hard Bog NA Lakes and Ponds
Lake--shallow, hard, drainage Lake--Shallow, Hard, Drainage NA Lakes and Ponds
Lepomis megalotis Longear Sunfish THR Rare Fishes
Lithobates palustris Pickerel Frog SC/H Rare Amphibians
Luxilus chrysocephalus Striped Shiner END Rare Fishes
Mesic prairie Mesic Prairie NA Herbaceous Communities - Prairies
Minuartia dawsonensis Rock Stitchwort SC Rare Plants
Moxostoma duquesnei Black Redhorse END Rare Fishes
Muhlenbergia richardsonis Mat Muhly END Rare Plants
Northern wet forest Northern Wet Forest NA Northern Forests
Notropis anogenus Pugnose Shiner THR Rare Fishes
Notropis nubilus Ozark Minnow THR Rare Fishes
Noturus exilis Slender Madtom END Rare Fishes
Nuphar advena Yellow Water Lily SC Rare Plants
Nycticorax nycticorax Black-crowned Night-Heron SC/M Rare Birds
Oak opening Oak Opening NA Savannas and Woodlands
Oak woodland Oak Woodland NA Savannas and Woodlands
Oenothera serrulata Yellow Evening Primrose SC Rare Plants
Open bog Open Bog NA Herbaceous Communities - Sedge Meadows, Fens, and Bogs
Papaipema silphii Silphium Borer Moth END Rare Butterflies and Moths
Phalaropus tricolor Wilson's Phalarope SC/M Rare Birds
Phegopteris hexagonoptera Broad Beech Fern SC Rare Plants
Platanthera flava var. herbiola Pale Green Orchid THR Rare Plants
Platanthera leucophaea Eastern Prairie White Fringed Orchid END LT Rare Plants
Platanus occidentalis Sycamore SC Rare Plants
Polystichum acrostichoides Christmas Fern SC Rare Plants
Prenanthes aspera Rough Rattlesnake-root END Rare Plants
Procambarus gracilis Prairie Crayfish SC/N Rare Crustaceans
Ptelea trifoliata ssp. trifoliata var. trifoliata Wafer-ash SC Rare Plants
Ranunculus cymbalaria Seaside Crowfoot THR Rare Plants
Regina septemvittata Queensnake END Rare Reptiles
Ruellia humilis Hairy Wild Petunia END Rare Plants
Scleria triglomerata Whip Nutrush SC Rare Plants
Scleria verticillata Low Nutrush SC Rare Plants
Scutellaria parvula var. parvula Small Skullcap END Rare Plants
Setophaga cerulea Cerulean Warbler THR SOC Rare Birds
Setophaga citrina Hooded Warbler THR Rare Birds
Shrub-carr Shrub-carr NA Shrub Communities
Sistrurus catenatus Eastern Massasauga END LT Rare Reptiles
Southern dry forest Southern Dry Forest NA Southern Forests
Southern dry-mesic forest Southern Dry-mesic Forest NA Southern Forests
Southern mesic forest Southern Mesic Forest NA Southern Forests
Southern sedge meadow Southern Sedge Meadow NA Herbaceous Communities - Sedge Meadows, Fens, and Bogs
Southern Tamarack Swamp Southern Tamarack Swamp NA Southern Forests
Springs and spring runs, hard Springs and Spring Runs, Hard NA Springs and Streams
Stream--slow, hard, warm Stream--Slow, Hard, Warm NA Springs and Streams
Thalictrum revolutum Waxleaf Meadowrue SC Rare Plants
Thamnophis radix Plains Gartersnake SC/H Rare Reptiles
Thaspium trifoliatum var. flavum Purple Meadow Parsnip SC Rare Plants
Triantha glutinosa False Asphodel THR Rare Plants
Trichophorum cespitosum Tufted Bulrush THR Rare Plants
Triglochin palustris Slender Bog Arrow-grass SC Rare Plants
Venustaconcha ellipsiformis Ellipse THR Rare Mussels and Clams
Verbena simplex Narrow-leaved Vervain SC Rare Plants
Villosa iris Rainbow Shell END Rare Mussels and Clams
Wet-mesic prairie Wet-mesic Prairie NA Herbaceous Communities - Prairies
Xanthocephalus xanthocephalus Yellow-headed Blackbird SC/M Rare Birds
Last revised: July 18, 2017
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