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Ohio's Rare Plants The Ohio Division of Natural Areas and Preserves maintains the Ohio Natural Heritage Database. Included in this database are the names of plants which are endangered, threatened, potentially threatened, and presumed extirpated. The status list for rare native Ohio plants is revised every two years by the Division with the advice and guidance of the Ohio Rare Plant Advisory Committee. Currently, the 1998-99 list contains 642 species and became effective on June 13, 1998. The status codes and number of species assigned to each status include: E = State Endangered (233) T = State Threatened (153) P = Potentially Threatened (148) X = Presumed Extirpated (103) A = Added (5) A species is considered presumed extirpated (X) when no valid records are known from the last 20 years. Species designated as added (A) have been recently included in the Division's rare plant inventory and sufficient information is not yet available to assign an endangerment status. Six Ohio plants are also included on the federal list: Endangered: Running Buffalo Clover, Trifolium stoloniferum Threatened: Northern Monkshood, Aconitum noveboracense Lakeside Daisy, Hymenoxys herbacea Small Whorled Pogonia, Isotria medeoloides Prairie Fringed Orchid, Platanthera leucophaea Appalachian Spiraea, Spiraea virginiana The list is divided into six phylogenetic groups: Lichens, Bryophytes, Ferns, Gymnosperms, Monocots, and Dicots. Taxonomy and nomenclature of the non- vascular plants follow the examples of Hale (1979) for lichens and of Anderson, Crum, and Buck (1990) and Anderson (1990) for bryophytes. Taxonomy and nomenclature of the vascular plants generally follow Gleason and Cronquist (1991). This list contains 103 presumed extirpated, 233 endangered, 153 threatened, and 148 potentially threatened plant taxa. Five additional plant taxa have no assigned status. Please contact the Division of Natural Areas and Preserves if you have any questions or information concerning these species. Additional information can be obtained at their World Wide Web site: http://www.dnr.state.oh.us/odnr/dnap/dnap.html Lichens | Mosses | Ferns | Gymnosperms | Monocots | Dicots Lichens E Baeomyces absolutus Pink Dot Lichen E Canoparmelia texana Buzzardroost Rock Lichen E Catapyrenium lachneum Liver Lichen E Collema bachmanianum Bachman's Pulp Lichen E Collema coccophorum Soil Pulp Lichen E Collema conglomeratum Dotted Pulp Lichen X Collema crispum Crinkled Pulp Lichen E Collema fuscovirens Dusky Jelly Lichen E Parmotrema madagascariaceum Madagascar Shield Lichen E Punctelia perreticulata Reticulate Shield Lichen X Ramalina farinacea Dotted Twig Lichen E Ramalina intermedia Sandstone Twig Lichen T Ramalina petrina Appalachian Trail Lichen E Ramalina pollinaria Powdery Twig Lichen E Sticta weigelii Weigel's Leather Lichen top Mosses X Andreaea rupestris var. rupestris Black Rock Moss X Anomobryum filiforme Common Silver Moss A Anomodon viticulosus Long Tail Moss A Barbula indica var. indica Twisted Teeth Moss E Buxbaumia minakatae Ethereal Elf Cap Moss E Campylostelium saxicola Rock-loving Swan-necked Moss E Diphyscium cumberlandianum Cumberland Grain O'Wheat Moss E Fissidens hyalinus Filmy Fissidens E Plagiothecium latebricola Lurking Leskea E Ptychomitrium drummondii Drummond's Ptychomitrium X Scorpidium scorpioides Turgid Brown Worm Moss E Sphagnum bartlettianum Bartlett's Peat Moss E Sphagnum riparium Shore-growing Peat Moss X Thuidium allenii Allen's Fern Moss E Tomentypnum nitens Fuzzy Hypnum Moss E Tortella inclinata Curved Tortella A Weissia sharpii Sharp's Green-cushioned Moss top Ferns T Asplenium bradleyi Bradley's Spleenwort X Asplenium resiliens Black-stem Spleenwort T Asplenium ruta-muraria Wall-rue T Botrychium biternatum Sparse-lobe Grape-fern X Botrychium lanceolatum Triangle Grape-fern T Botrychium multifidum Leathery Grape-fern E Botrychium simplex Least Grape-fern P Cystopteris tennesseensis Tennessee Bladder Fern T Dryopteris clintoniana Clinton's Wood Fern P Equisetum sylvaticum Woodland Horsetail T Equisetum variegatum Variegated Scouring-rush X Gymnocarpium appalachianum Appalachian Oak Fern T Gymnocarpium dryopteris Oak Fern X Isoetes echinospora Spiny-spored Quillwort E Isoetes engelmannii Appalachian Quillwort E Lycopodiella margueritae Northern Prostrate Clubmoss E Lycopodiella subappressa Southern Clubmoss E Ophioglossum engelmannii Limestone Adder's-tongue P Phegopteris connectilis Long Beech-fern T Polypodium polypodioides Little Gray Polypody a Pteridium aquilinum var. pseudocaudatum Tailed Bracken T Selaginella eclipes Midwest Spikemoss E Selaginella rupestris Rock Spikemoss E Trichomanes boschianum Appalachian Filmy Fern X Woodsia ilvensis Rusty Woodsia P Woodwardia areolata Netted Chain-fern top Gymnosperms T Juniperus communis Ground Juniper P Larix laricina Tamarack P Thuja occidentalis Arbor Vitae top Monocots T Agave virginica American Aloe X Agrostis elliottiana Elliott's Bent-grass T Ammophila breviligulata American Beach Grass E Andropogon virginicus var. abbreviatus Bushy Beardgrass E Arethusa bulbosa Dragon's-mouth E Aristida necopina False Arrow-feather P Aristida purpurascens Purple Triple-awned Grass E Calamagrostis porteri ssp. insperata Bartley's Reed Bent Grass P Calla palustris Wild Calla T Calopogon tuberosus Grass-pink P Carex abscondita Southern Leafy Wood Sedge P Carex alata Broad-winged Sedge T Carex albolutescens Pale Straw Sedge E Carex alopecoidea Northern Fox Sedge T Carex aquatilis Leafy Tussock Sedge E Carex arctata Drooping Wood Sedge P Carex argyrantha Silvery Sedge P Carex atherodes Wheat Sedge P Carex atlantica var. capillacea Howe's Sedge P Carex aurea Golden-fruited Sedge P Carex bebbii Bebb's Sedge T Carex bicknellii Bicknell's Sedge T Carex brunnescens Brownish Sedge E Carex bushii Bush's Sedge E Carex cephaloidea Thin-leaf Sedge T Carex conoidea Field Sedge P Carex crawei Crawe's Sedge T Carex crus-corvi Raven-foot Sedge P Carex cryptolepis Little Yellow Sedge P Carex debilis var. debilis Weak Sedge E Carex decomposita Cypress-knee Sedge X Carex deweyana Dewey's Sedge P Carex diandra Lesser Panicled Sedge E Carex disperma Two-seeded Sedge E Carex echinata Little Prickly Sedge P Carex flava Yellow Sedge X Carex formosa Handsome Sedge E Carex garberi Garber's Sedge X Carex haydenii Hayden's Sedge T Carex juniperorum Juniper Sedge P Carex lasiocarpa Slender Sedge E Carex limosa Mud Sedge E Carex longii Long's Sedge E Carex louisianica Louisiana Sedge E Carex lucorum Fire Sedge T Carex lupuliformis False Hop Sedge E Carex merritt-fernaldii Fernald's Sedge T Carex mesochorea Midland Sedge T Carex oligosperma Few-seeded Sedge T Carex pallescens Pale Sedge X Carex peckii Peck's Sedge T Carex projecta Necklace Sedge E Carex pseudocyperus Northern Bearded Sedge E Carex purpurifera Purple Wood Sedge P Carex radiata Radiate Sedge P Carex retroflexa var. retroflexa Reflexed Sedge E Carex retrorsa Reflexed Bladder Sedge X Carex richardsonii Richardson's Sedge P Carex sartwellii Sartwell's Sedge E Carex siccata Hay Sedge T Carex sprengelii Sprengel's Sedge P Carex sterilis Fen Sedge P Carex straminea Straw Sedge E Carex striatula Lined Sedge X Carex styloflexa Lowland Wood Sedge X Carex tenuiflora Thin-flowered Sedge P Carex viridula Little Green Sedge E Cinna latifolia Northern Wood-reed P Cladium mariscoides Twig-rush E Clintonia borealis Bluebead-lily T Clintonia umbellulata Speckled Wood-lily E Coeloglossum viride Long-bracted Orchid P Corallorhiza maculata Spotted Coral-root E Corallorhiza trifida Early Coral-root T Corallorhiza wisteriana Spring Coral-root E Cyperus acuminatus Pale Umbrella-sedge P Cyperus diandrus Low Umbrella-sedge E Cyperus dipsaciformis Teasel-sedge X Cyperus houghtonii Houghton's Umbrella-sedge E Cyperus lancastriensis Many-flowered Umbrella-sedge E Cyperus refractus Reflexed Umbrella-sedge P Cyperus schweinitzii Schweinitz's Umbrella-sedge E Cypripedium calceolus var. parviflorum Small Yellow Lady's-slipper P Cypripedium calceolus var. pubescens Large Yellow Lady's-slipper T Cypripedium candidum White Lady's-slipper T Cypripedium reginae Showy Lady's-slipper P Deschampsia caespitosa Tufted Hairgrass P Deschampsia flexuosa Crinkled Hairgrass X Digitaria filiformis Slender Finger-grass T Disporum maculatum Nodding Mandarin E Echinodorus rostratus Bur-head E Eleocharis caribaea Caribbean Spikerush T Eleocharis compressa Flat-stem Spikerush E Eleocharis engelmannii Engelmann's Spikerush T Eleocharis olivacea Olivaceous Spikerush E Eleocharis ovata Ovate Spikerush E Eleocharis parvula Least Spikerush T Eleocharis pauciflora Few-flowered Spikerush P Eleocharis quadrangulata Four-angled Spikerush E Eleocharis wolfii Wolf's Spikerush T Elymus trachycaulus Bearded Wheat Grass E Eriocaulon septangulare White-buttons X Eriophorum gracile Slender Cottongrass P Eriophorum virginicum Tawny Cottongrass P Eriophorum viridicarinatum Green Cottongrass E Erythronium rostratum Goldenstar E Glyceria acutiflora Sharp-glumed Manna-grass X Glyceria borealis Northern Manna-grass P Glyceria grandis Tall Manna-grass X Goodyera tesselata Checkered Rattlesnake-plantain X Gymnopogon ambiguus Beardgrass E Heteranthera reniformis Mud-plantain T Hexalectris spicata Crested Coral-root E Iris brevicaulis Leafy Blue Flag T Iris verna Dwarf Iris E Isotria medeoloides Small Whorled Pogonia P Juncus alpinus Alpine Rush P Juncus balticus Baltic Rush E Juncus diffusissimus Diffuse Rush E Juncus greenei Greene's Rush T Juncus interior Inland Rush E Juncus platyphyllus Flat-leaved Rush T Juncus secundus One-sided Rush E Koeleria macrantha Junegrass E Leersia lenticularis Catchfly Grass T Lilium philadelphicum Wood-lily P Lilium superbum Turk's-cap Lily E Lipocarpha drummondii Drummond's Dwarf Bulrush T Lipocarpha micrantha Dwarf Bulrush X Listera cordata Heartleaf Twayblade T Lophotocarpus calycinus Southern Wapato T Luzula bulbosa Southern Woodrush P Malaxis unifolia Green Adder's-mouth T Melanthium virginicum Bunchflower E Melica nitens Three-flowered Melic X Muhlenbergia capillaris Hairgrass E Muhlenbergia cuspidata Plains Muhlenbergia E Najas gracillima Thread-like NaiadT Nothoscordum bivalve False Garlic E Oryzopsis asperifolia Large-leaved Mountain-rice E Oryzopsis racemosa Mountain-rice T Panicum bicknellii Bicknell's Panic-grass T Panicum boreale Northern Panic-grass X Panicum calliphyllum Tall Green Panic-grass E Panicum commonsianum Commons'Panic-grass P Panicum laxiflorum Pale Green Panic-grass E Panicum leibergii Leiberg's Panic-grass E Panicum lindheimeri Lindheimer's Panic-grass X Panicum longifolium Long-leaved Panic-grass E Panicum meridionale Southern Hairy Panic-grass E Panicum perlongum Long-panicled Panic-grass T Panicum philadelphicum Philadelphia Panic-grass E Panicum praecocius Early Panic-grass E Panicum spretum Narrow-headed Panic-grass E Panicum tuckermanii Tuckerman's Panic-grass E Panicum verrucosum Warty Panic-grass X Panicum villosissimum Villous Panic-grass E Panicum yadkinense Spotted Panic-grass P Paspalum fluitans Riverbank Paspalum X Piptochaetium avenaceum Blackseed Needle Grass E Platanthera blephariglottis White Fringed Orchid T Platanthera ciliaris Yellow Fringed Orchid P Platanthera flava Tubercled Rein-orchid X Platanthera grandiflora Large Purple Fringed Orchid X Platanthera hookeri Hooker's Orchid X Platanthera hyperborea Tall Northern Green Orchid T Platanthera leucophaea Prairie Fringed Orchid P Platanthera orbiculata Large Round-leaved Orchid E Platanthera psycodes Small Purple Fringed Orchid P Poa languida Weak Spear-grass T Poa paludigena Marsh Spear-grass E Poa saltuensis Pasture Bluegrass X Poa wolfii Wolf's Bluegrass T Pogonia ophioglossoides Rose Pogonia X Potamogeton filiformis Filiform Pondweed E Potamogeton friesii Fries'Pondweed E Potamogeton gramineus Grass-like Pondweed E Potamogeton hillii Hill's Pondweed P Potamogeton natans Floating Pondweed X Potamogeton perfoliatus Red-head Pondweed E Potamogeton praelongus White-stem Pondweed T Potamogeton pulcher Spotted Pondweed P Potamogeton richardsonii Richardson's Pondweed E Potamogeton robbinsii Robbins'Pondweed E Potamogeton spirillus Spiral Pondweed X Potamogeton strictifolius Straight-leaved Pondweed E Potamogeton tennesseensis Tennessee Pondweed X Potamogeton vaseyi Vasey's Pondweed P Potamogeton zosteriformis Flat-stem Pondweed P Rhynchospora alba White Beak-rush E Rhynchospora globularis Grass-like Beak-rush X Saccharum alopecuroideum Silver Plume Grass P Sagittaria australis Long-beaked Arrowhead E Sagittaria cuneata Wapato E Sagittaria graminea Grass-leaf Arrowhead A Sagittaria platyphylla Elliptic-leaved Arrowhead T Sagittaria rigida Deer's-tongue Arrowhead E Scheuchzeria palustris Scheuchzeria E Schizachne purpurascens False Melic E Schizachyrium scoparium var. littorale Coastal Little Bluestem T Scirpus expansus Woodland Bulrush P Scirpus purshianus Pursh's Bulrush E Scirpus smithii Smith's Bulrush E Scirpus subterminalis Swaying Rush X Scirpus torreyi Torrey's Bulrush E Scleria oligantha Tubercled Nut-rush T Scleria pauciflora Few-flowered Nut-rush P Scleria triglomerata Tall Nut-rush P Scleria verticillata Low Nut-rush E Sisyrinchium atlanticum Atlantic Blue-eyed-grass E Sisyrinchium montanum Northern Blue-eyed-grass E Sisyrinchium mucronatum Narrow-leaved Blue-eyed-grass X Smilacina trifolia Three-leaved Solomon's-seal T Smilax herbacea var. lasioneura Pale Carrion-flower E Smilax herbacea var. pulverulenta Downy Carrion-flower P Sparganium androcladum Keeled Bur-reed E Sparganium chlorocarpum Small Bur-reed T Sphenopholis obtusata var. obtusata Prairie Wedgegrass P Sphenopholis pensylvanica Swamp-oats P Spiranthes lucida Shining Ladies'-tresses P Spiranthes magnicamporum Great Plains Ladies'-tresses P Spiranthes ovalis Lesser Ladies'-tresses T Spiranthes romanzoffiana Hooded Ladies'-tresses P Sporobolus cryptandrus Sand Dropseed T Sporobolus heterolepis Prairie Dropseed T Stenanthium gramineum Feather-bells T Stipa spartea Porcupine Grass E Streptopus roseus Rose Twisted-stalk T Tofieldia glutinosa False Asphodel T Triglochin maritimum Seaside Arrow-grass P Triglochin palustre Marsh Arrow-grass X Trillium cernuum Nodding Trillium P Trillium nivale Snow Trillium p Trillium recurvatum Prairie Wake-robin T Trillium undulatum Painted Trillium T Triphora trianthophora Three-birds-orchid p Triplasis purpurea Purple Sand-grass T Veratrum woodii Wood's Hellebore T Wolffiella gladiata Wolffiella E Xyris difformis Carolina Yellow-eyed-grass E Xyris torta Twisted Yellow-eyed-grass P Zigadenus elegans var. glaucus Wand-lily T Zizania aquatica Wild Rice top Dicots X Acalypha virginica var. deamii Deam's Three-seeded Mercury E Acer pensylvanicum Striped Maple E Aconitum noveboracense Northern Monkshood E Aconitum uncinatum Southern Monkshood T Actaea rubra Red Baneberry T Adlumia fungosa Mountain-fringe E Agalinis auriculata Ear-leaf Foxglove X Agalinis gattingeri Gattinger's Foxglove E Agalinis purpurea var parviflora Small Purple Foxglove E Agalinis skinneriana Skinner's Foxglove E Amelanchier sanguinea Rock Serviceberry X Andromeda glaucophylla Bog-rosemary T Androsace occidentalis Western Rock Jasmine T Anemone cylindrica Prairie Thimbleweed T Antennaria virginica Shale Barren Pussy-toes E Apocynum sibiricum Clasping-leaf Dogbane E Arabis divaricarpa Limestone Rock-cress E Arabis drummondii Drummond's Rock-cress P Arabis hirsuta var. adpressipilis Southern Hairy Rock-cress E Arabis hirsuta var. pycnocarpa Western Hairy Rock-cress T Arabis lyrata Lyre-leaf Rock-cress E Arabis patens Spreading Rock-cress E Aralia hispida Bristly Sarsaparilla X Arctostaphylos uva-ursi Bearberry P Arenaria lateriflora Grove Sandwort E Arenaria patula Spreading Sandwort P Arenaria stricta Rock Sandwort T Armoracia lacustris Lake-cress T Artemisia campestris Beach Wormwood P Asclepias amplexicaulis Bluntleaf Milkweed P Asclepias variegata White Milkweed P Asclepias viridiflora Green Milkweed P Asclepias viridis Spider Milkweed X Aster acuminatus Mountain Aster T Aster drummondii Drummond's Aster T Aster dumosus Bushy Aster T Aster oblongifolius Shale Barren Aster T Aster ontarionis Bottomland Aster T Aster solidagineus Narrow-leaved Aster X Aster surculosus Creeping Aster E Astragalus neglectus Cooper's Milk-vetch E Aureolaria pedicularia var. ambigens Prairie Fern-leaf False Foxglove E Aureolaria pedicularia var. pedicularia Woodland Fern-leaf False Foxglove E Baptisia australis Blue False Indigo P Baptisia lactea Prairie False Indigo X Besseya bullii Besseya P Betula populifolia Gray Birch T Betula pumila Swamp Birch P Bignonia capreolata Cross-vine T Buchnera americana Bluehearts P Cacalia plantaginea Fen Indian-plantain P Cakile edentula Inland Sea-rocket T Calamintha arkansana Limestone Savory T Callitriche verna Water-starwort X Calycanthus fertilis Sweet-shrub T Campanula rotundifolia Harebell P Cardamine dissecta Narrow-leaved Toothwort E Cardamine pratensis var. palustris American Cuckoo-flower P Castanea dentata American Chestnut E Ceanothus herbaceus Prairie Redroot P Celtis tenuifolia Dwarf Hackberry P Chamaedaphne calyculata Leather-leaf X Chenopodium capitatum Strawberry-blite X Chenopodium leptophyllum Slender Goosefoot T Chimaphila umbellata Pipsissewa T Chionanthus virginicus Fringe-tree T Chrysogonum virginianum Golden-knees E Chrysopsis graminifolia Silkgrass T Cirsium carolinianum Carolina Thistle X Clematis occidentalis Purple Virgin's-bower P Clitoria mariana Butterfly-pea E Collinsonia verticillata Early Stoneroot T Comptonia peregrina Sweet-fern E Conyza ramosissima Bushy Horseweed T Cornus canadensis Bunchberry P Cornus rugosa Round-leaved Dogwood P Corydalis sempervirens Rock-harlequin X Corylus cornuta Beaked Hazel X Crataegus brainerdii Brainerd's Hawthorn E Crataegus uniflora Dwarf Hawthorn E Croton glandulosus Northern Croton X Cuscuta compacta Sessile Dodder E Cuscuta coryli Hazel Dodder T Cuscuta glomerata Glomerate Dodder X Cuscuta pentagona Five-angled Dodder X Cynoglossum virginianum var. boreale Northern Wild Comfrey X Dalea purpurea Purple Prairie-clover T Dalibarda repens Robin-run-away P Delphinium exaltatum Tall Larkspur T Descurainia pinnata Tansy-mustard X Desmodium illinoense Prairie Tick-trefoil P Desmodium pauciflorum Few-flowered Tick-trefoil E Desmodium sessilifolium Sessile Tick-trefoil E Draba brachycarpa Little Whitlow-grass T Draba cuneifolia Wedge-leaf Whitlow-grass T Draba reptans Carolina Whitlow-grass E Drosera intermedia Spathulate-leaved Sundew P Drosera rotundifolia Round-leaved Sundew X Elatine triandra Elatine E Epilobium angustifolium Fireweed T Epilobium strictum Simple Willow-herb P Eryngium yuccifolium Rattlesnake-master E Erysimum arkansanum Western Wall-flower T Eupatorium album White Thoroughwort T Eupatorium aromaticum Small White Snakeroot E Eupatorium hyssopifolium Hyssop Thoroughwort P Eupatorium incarnatum Pink Thoroughwort P Euphorbia polygonifolia Seaside Spurge E Euphorbia purpurea Glade Spurge E Euphorbia serpens Roundleaf Spurge T Euthamia remota Great Lakes Goldenrod E Froelichia floridana Cottonweed E Galactia volubilis Milk-pea E Galium labradoricum Bog Bedstraw E Galium palustre Marsh Bedstraw X Gaultheria hispidula Creeping Snowberry T Gentiana alba Yellowish Gentian P Gentiana clausa Closed Gentian E Gentiana puberulenta Prairie Gentian E Gentiana saponaria Soapwort Gentian E Gentiana villosa Sampson's Snakeroot P Gentianopsis crinita Fringed Gentian P Gentianopsis procera Small Fringed Gentian E Geranium bicknellii Bicknell's Crane's-bill P Geum rivale Water Avens X Gnaphalium viscosum Winged Cudweed P Gratiola virginiana Round-fruited Hedge-hyssop P Gratiola viscidula Short's Hedge-hyssop X Hackelia deflexa Northern Stickseed X Halesia carolina Silverbell T Hedeoma hispidum Rough Pennyroyal P Hedyotis nigricans Narrow-leaved Summer Bluets T Helianthemum bicknellii Plains Frostweed P Helianthemum canadense Canada Frostweed T Helianthus mollis Ashy Sunflower P Helianthus occidentalis Western Sunflower X Heuchera longiflora Long-flowered Alumroot P Heuchera parviflora Small-flowered Alumroot T Heuchera villosa Hairy Alumroot T Hieracium canadense Canada Hawkweed E Hieracium longipilum Long-bearded Hawkweed X Hottonia inflata Featherfoil E Hudsonia tomentosa Beach-heather P Hydrocotyle americana American Water-pennywort E Hydrocotyle umbellata Navelwort E Hymenoxys herbacea Lakeside Daisy T Hypericum boreale Northern St. John's-wort T Hypericum canadense Canadian St. John's-wort E Hypericum denticulatum Coppery St. John's-wort T Hypericum ellipticum Few-flowered St. John's-wort E Hypericum gymnanthum Least St. John's-wort T Hypericum kalmianum Kalm's St. John's-wort P Hypericum majus Tall St. John's-wort P Juglans cinerea Butternut T Krigia dandelion Potato-dandelion T Krigia virginica Dwarf Dandelion X Lactuca hirsuta Hairy Tall Lettuce T Lathyrus japonicus Inland Beach-pea T Lathyrus ochroleucus Yellow Vetchling E Lathyrus venosus Wild Pea T Leavenworthia uniflora Michaux's Leavenworthia T Lechea intermedia Round-fruited Pinweed T Lechea minor Thyme-leaf Pinweed P Lechea pulchella Leggett's Pinweed T Lechea tenuifolia Narrow-leaved Pinweed T Lechea villosa Hairy Pinweed E Ledum groenlandicum Labrador-tea T Liatris cylindracea Slender Blazing-star P Liatris squarrosa Scaly Blazing-star X Ligusticum canadense American Lovage E Linaria canadensis Old-field Toadflax X Linnaea borealis American Twinflower P Linum sulcatum Grooved Flax T Lithospermum caroliniense Plains Puccoon X Lonicera flava Pale Yellow Honeysuckle X Lonicera oblongifolia Swamp Fly-honeysuckle P Lonicera reticulata Grape Honeysuckle X Lonicera villosa Mountain Fly-honeysuckle P Lupinus perennis Wild Lupine X Lyonia ligustrina Maleberry E Magnolia macrophylla Bigleaf Magnolia P Magnolia tripetala Umbrella Magnolia P Matelea obliqua Angle-pod X Megalodonta beckii Water-marigold T Melampyrum lineare Cow-wheat T Menyanthes trifoliata Buckbean E Monarda punctata Dotted Horsemint E Moneses uniflora One-flowered Wintergreen E Myrica pensylvanica Bayberry E Myriophyllum heterophyllum Two-leaved Water-milfoil T Myriophyllum sibiricum American Water-milfoil E Myriophyllum verticillatum Green Water-milfoil E Nuphar variegata Bullhead Lily E Oenothera clelandii Cleland's Evening-primrose E Oenothera oakesiana Oakes' Evening-primrose E Oenothera parviflora Small-flowered Evening-primrose P Onosmodium hispidissimum False Gromwell P Opuntia humifusa Prickly Pear P Orbexilum pedunculatum False Scurf-pea X Orobanche ludoviciana Louisiana Broom-rape X Orthilia secunda One-sided Wintergreen E Oxalis montana White Wood-sorrel T Passiflora incarnata Passion-flower E Paxistima canbyi Cliff-green T Penstemon canescens Gray Beard-tongue E Penstemon laevigatus Smooth Beard-tongue T Penstemon pallidus Downy White Beard-tongue X Penstemon tubaeflorus White-wand Beard-tongue X Perideridia americana Perideridia P Phacelia bipinnatifida Fern-leaf Scorpion-weed X Phacelia dubia Small-flowered Scorpion-weed E Phacelia ranunculacea Blue Scorpion-weed P Phaseolus polystachios Wild Kidney Bean E Phlox latifolia Mountain Phlox E Phyllanthus caroliniensis Carolina Leaf-flower X Physalis virginiana Virginia Ground-cherry E Plantago cordata Heart-leaf Plantain E Plantago patagonica Woolly Plantain E Pluchea camphorata Camphorweed E Podostemum ceratophyllum Riverweed E Polygala cruciata Cross-leaved Milkwort E Polygala curtissii Curtiss' Milkwort T Polygala incarnata Pink Milkwort E Polygala paucifolia Gay-wings T Polygala polygama Racemed Milkwort X Polygonum careyi Carey's Smartweed T Polygonum cilinode Mountain Bindweed T Polygonum robustius Coarse Smartweed E Polygonum setaceum var. interjectum Bristly Smartweed E Populus balsamifera Balsam Poplar P Populus heterophylla Swamp Cottonwood P Porteranthus trifoliatus Bowman's-root E Potentilla arguta Tall Cinquefoil P Potentilla palustris Marsh Fivefinger T Potentilla paradoxa Bushy Cinquefoil E Prenanthes aspera Rough Rattlesnake-root E Prenanthes crepidinea Nodding Rattlesnake-root P Prenanthes racemosa Prairie Rattlesnake-root E Prenanthes trifoliolata Gall-of-the-earth X Prunus mexicana Bigtree Plum X Prunus nigra Canada Plum T Prunus pumila var. cuneata Sand Cherry X Prunus pumila var. pumila Great Lakes Sand Cherry P Pycnanthemum muticum Blunt Mountain-mint E Pycnanthemum verticillatum var. pilosum Hoary Mountain-mint E Pyrola chlorantha Green-flowered Wintergreen X Pyrus angustifolia Narrow-leaved Crab E Quercus falcata Spanish Oak P Quercus marilandica Blackjack Oak P Ranunculus fascicularis Early Buttercup E Ranunculus pusillus Low Spearwort P Rhexia virginica Virginia Meadow-beauty E Rhododendron calendulaceum Flame Azalea T Rhododendron maximum Great Rhododendron T Rhododendron nudiflorum var. nudiflorum Pinxter-flower P Rhododendron nudiflorum var. roseum Northern Rose Azalea X Rhus aromatica var. arenaria Beach Sumac X Ribes glandulosum Skunk Currant E Ribes missouriense Missouri Gooseberry E Ribes triste Swamp Red Currant X Rosa arkansana Arkansas Rose T Rosa blanda Smooth Rose X Rubus setosus Small Bristleberry X Rubus trivialis Southern Dewberry P Ruellia caroliniensis Carolina Ruellia X Sagina decumbens Southern Pearlwort T Salix candida Hoary Willow T Salix caroliniana Carolina Willow X Salix cordata Sand-dune Willow P Salix myricoides Blue-leaved Willow E Salix pedicellaris Bog Willow T Salix petiolaris Slender Willow P Salix serissima Autumn Willow P Sarracenia purpurea Pitcher-plant P Scutellaria integrifolia Hyssop Skullcap P Scutellaria saxatilis Rock Skullcap P Scutellaria serrata Showy Skullcap T Senecio pauperculus Balsam Squaw-weed P Shepherdia canadensis Canadian Buffalo-berry P Sida hermaphrodita Virginia Mallow T Silene caroliniana var. pensylvanica Carolina CatchflyE Silene caroliniana var. wherryi Wherry's Catchfly T Silene nivea Snowy Campion P Silene regia Royal Catchfly P Silene rotundifolia Round-leaved Catchfly E Silphium laciniatum Compass-plant X Solidago arguta Cut-leaf Goldenrod T Solidago odora Sweet Goldenrod P Solidago ohioensis Ohio Goldenrod X Solidago ptarmicoides White Upland Goldenrod E Solidago puberula Dusty Goldenrod E Solidago sphacelata False Goldenrod P Solidago squarrosa Leafy Goldenrod E Sorbus decora Western Mountain-ash P Spermacoce glabra Smooth Buttonweed X Spiraea alba var. latifolia Northern Meadow-sweet E Spiraea virginiana Appalachian Spiraea X Styrax americanus Snowbell X Styrax grandifolius Bigleaf Snowbell P Sullivantia sullivantii Sullivantia X Symphoricarpos albus var. albus Snowberry E Toxicodendron rydbergii Northern Poison-ivy T Triadenum tubulosum Marsh St. John's-wort E Triadenum walteri Walter's St. John's-wort E Trichostema dichotomum var. lineare Narrow-leaved Bluecurls E Trifolium reflexum Buffalo Clover E Trifolium stoloniferum Running Buffalo Clover E Trollius laxus Spreading Globe-flower T Ulmus thomasii Rock Elm E Urtica chamaedryoides Spring Nettle E Utricularia cornuta Horned Bladderwort E Utricularia geminiscapa Two-scaped Bladderwort T Utricularia intermedia Flat-leaved Bladderwort P Utricularia minor Lesser Bladderwort P Vaccinium macrocarpon Large Cranberry T Vaccinium myrtilloides Velvet-leaf Blueberry T Vaccinium oxycoccos Small Cranberry E Valeriana ciliata Prairie Valerian X Valeriana uliginosa Swamp Valerian P Verbesina helianthoides Hairy Wing-stem E Verbesina occidentalis Yellow Crownbeard P Vernonia fasciculata Prairie Ironweed E Vernonia missurica Missouri Ironweed X Vernonia noveboracensis New York Ironweed P Viburnum alnifolium Hobblebush E Viburnum molle Soft-leaved Arrow-wood T Viburnum opulus var. americanum Highbush-cranberry P Viburnum rufidulum Southern Black-haw P Viola lanceolata Lance-leaved Violet E Viola missouriensis Missouri Violet E Viola nephrophylla Northern Bog Violet T Viola pedata Bird-foot Violet E Viola pedatifida Prairie Violet E Viola primulifolia Primrose-leaved Violet E Viola tripartita var. glaberrima Wedge-leaf Violet X Viola tripartita var. Tripartita Three-parted Violet E Viola walteri Walter's Violet P Vitis cinerea Pigeon Grape top

© 2000 Ohio Biological Survey.