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[48 Pa.B. 7757]
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Subchapter B. CLASSIFIED PLANTS

§ 45.11. Pennsylvania Extirpated.

 Plant species classified as Pennsylvania Extirpated are as follows:

Scientific Name Common Name
Aeschynomene virginica (L.) Britton, Stearns & Poggenb. Sensitive Joint-Vetch
Agalinis decemloba (Greene) Pennell Blue Ridge False Foxglove
Agrostis altissima (Walter) Tuck. Tall Bentgrass
Arctostaphylos uva-ursi (L.) Spreng. Bearberry Manzanita
Asclepias rubra L. Red Milkweed
Astragalus neglectus (Torr. & A. Gray) Sheldon Cooper's Milk-Vetch
Berberis canadensis P. Mill. American Barberry
Buchnera americana L. Bluehearts
Carex adusta Boott Crowded Sedge
Carex alopecoidea Tuckerman Foxtail Sedge
Carex backii Boott Rocky Mountain Sedge
Carex barrattii Schwein. & Torr. Barratt's Sedge
Carex chordorrhiza L.f. Creeping Sedge
Carex foenea Willd. Fernald's Hay Sedge
Carex hyalinolepis Steud. Shoreline Sedge
Carex nigra (L.) Reichard Black Sedge
Carex sartwellii Dewey Sartwell's Sedge
Chamaecyparis thyoides (L.) Britton, Stearns & Poggenb. Atlantic White-Cedar
Commelina erecta L. Slender Dayflower
Commelina virginica L. Virginia Dayflower
Coreopsis rosea Nutt. Pink Tickseed
Crassula aquatica (L.) Schönland Water-Pigmyweed
Crotonopsis elliptica Willd. Elliptical Rushfoil
Cynoglossum boreale Fernald Northern Hound's Tongue
Cyperus polystachyos Rottb. Many-Spiked Flatsedge
Cypripedium candidum Muhl. ex Willd. Small White Lady's-Slipper
Desmodium sessilifolium (Torr.) Torr. and A. Gray Sessile-Leaved Tick Trefoil
Dichanthelium leibergii (Vasey) Freckmann Leiberg's Panic Grass
Dichanthelium spretum (Schult.) Freckmann Eaton's Witchgrass
Diphasiastrum sabinifolium (Willd.) Holub. Fir Clubmoss
Distichlis spicata (L.) Greene Sea-Shore Salt-Grass
Draba reptans (Lam.) Fernald Carolina Whitlow-Grass
Echinacea laevigata (C. L. Boynton & Beadle) S. F. Blake Smooth Purple Coneflower
Elatine americana (Pursh) Arn. Long-Stem Waterwort
Eleocharis tricostata Torr. Three-Ribbed Spike-Rush
Eleocharis tuberculosa (Michx.) Roem. & Schult. Long-Tubercled Spike-Rush
Elodea schweinitzii (Planch) Casp. Schweinitz's Waterweed
Eriocaulon decangulare L. Ten-Angle Pipewort
Eriocaulon parkeri B. L. Rob. Parker's Pipewort
Eryngium aquaticum L. Marsh Eryngo
Eupatorium album L. var album White Thoroughwort
Eupatorium leucolepis (DC) Torr. & A. Gray White-Bracted Thoroughwort
Euphorbia obtusata Pursh Blunt-Leaved Spurge
Fimbristylis puberula (Michx.) Vahl Hairy Fimbry
Galactia regularis (L.) Britton, Stearns & Poggenb. Eastern Milk-Pea
Galactia volubilis (L.) Britton Downy Milk-Pea
Gentiana catesbaei Walter Elliott's Gentian
Gentianopsis virgata (Raf.) Holub Narrow-Leaved Fringed Gentian
Helianthus angustifolius L. Swamp Sunflower
Hordeum pusillum Nutt. Á Löve Little-Barley
Hottonia inflata Elliott American Featherfoil
Hydrocotyle umbellata L. Many-Flowered Pennywort
Hypericum adpressum Raf. ex Barton Creeping St. John's-Wort
Hypericum crux-andreae (L. ) Crantz St. Peter's-Wort
Hypericum denticulatum Walter Coppery St. John's-Wort
Hypericum gymnanthum Engelm. & A. Gray Clasping-Leaved St. John's-Wort
Ilex glabra (L.) A. Gray Inkberry
Itea virginica L. Virginia-Willow
Juncus greenei Oakes & Tuck. Greene's Rush
Koeleria macrantha (Ledeb.) Schultes Junegrass
Leiophyllum buxifolium (Berg.) Elliott Sand-Myrtle
Lespedeza stuevei Nutt. Tall Bush-Clover
Limosella australis R. Br. Awl-Shaped Mudwort
Lobelia nuttallii Roem. & Schult. Nuttall's Lobelia
Ludwigia sphaerocarpa Elliott Spherical-Fruited Seedbox
Lysimachia quadriflora Sims Four-Flowered Loosestrife
Matelea carolinensis (Jacq.) Woods. Carolina Milkvine
Micranthemum micranthemoides (Nutt.) Wettst. Nuttall's Mud-Flower
Muhlenbergia capillaris (Lam.) Trin. Short Muhly
Myrica heterophylla Raf. Evergreen Bayberry
Onosmodium virginianum (L.) A. DC. Virginia False Gromwell
Ophioglossum vulgatum L. var. pycnostichum Fernald Adders Tongue
Phoradendron leucarpum (Raf.) Reveal & M. C. Johnst. Christmas Mistletoe
Phyllanthus caroliniensis Walt. Carolina Leaf-Flower
Platanthera cristata (Michx.) Lindl. Crested Yellow Orchid
Platanthera leucophaea (Nutt.) Lindl. Prairie White-Fringed Orchid
Polygala lutea L. Yellow Milkwort
Populus heterophylla L. Swamp Cottonwood
Potamogeton alpinus Balbis Northern Pondweed
Potamogeton praelongus Wulfen White-Stem Pondweed
Prenanthes racemosa Michx. Glaucous Rattlesnake-Root
Proserpinaca pectinata Lam. Comb-Leaved Mermaid-Weed
Ranunculus hederaceus L. Long-Stalked Crowfoot
Rhododendron calendulaceum (Michx.) Torr. Flame Azalea
Rhynchospora fusca (L.) Aiton f. Brown Beak-Rush
Rhynchospora gracilenta A. Gray Beak-Rush
Ruellia caroliniensis (Walter ex J. F. Gmel.) Steud. Carolina Petunia
Sabatia campanulata (L.) Torr. Slender Marsh-Pink
Sabatia stellaris Pursh Sea Pink
Saccharum giganteum (Walter) Pers. Sugarcane-Plumegrass
Sagittaria filiformis J. G. Sm. Water Arrow-Head
Schoenoplectus heterochaetus Chase (Sojak) Slender Bulrush
Scutellaria serrata Andr. Showy Skullcap
Sisyrinchium fuscatum E. P. Bicknell Sand Blue-Eyed Grass
Smilax pseudochina L. Long-Stalked Greenbrier
Sparganium natans L. Small Bur-Reed
Spiraea virginiana Britton Virginia Spiraea
Spiranthes magnicamporum Sheviak Ladies'-Tresses
Trifolium reflexum L. Buffalo Clover
Triglochin palustris L. Marsh Arrowgrass
Utricularia fibrosa Walt. Fibrous Bladderwort
Utricularia resupinata B. D. Greene ex Bigelow Northeastern Bladderwort

§ 45.12. Pennsylvania Endangered.

 Plant species classified as Pennsylvania Endangered are as follows:

Scientific Name Common Name
Aconitum reclinatum A. Gray White Monkshood
Acorus americanus (Raf.) Raf. Sweet Flag
Agalinis auriculata (Michx.) S. F. Blake Eared False Foxglove
Agalinis paupercula (A. Gray) Britton Small-Flowered False Foxglove
Alisma triviale Pursh Broad-Leaved Water-Plaintain
Alnus viridis (Vill.) DC Mountain Alder
Amelanchier bartramiana (Tausch) M. Roem. Oblong-Fruited Serviceberry
Ammania coccinea Rottb. Scarlet Ammannia
Anemone cylindrica A. Gray Long-Headed Anemone
Arabis missouriensis Greene Missouri Rockcress
Arethusa bulbosa L. Dragon's-Mouth
Arnica acaulis (Walter) Britton, Stearns & Poggenb. Leopard's-Bane
Artemisia campestris L. ssp. caudata (Michx.) Hall & Clements. Beach Wormwood
Asclepias variegata L. White Milkweed
Asplenium resiliens Kunze Black-Stemmed Spleenwort
Bidens beckii (Torr. ex Spreng.) Greene Beck's Water-Marigold
Boltonia asteroides (L.) L'Hér. Aster-Like Boltonia
Cardamine pratensis L. var. palustris Wimm. & Grab. (Gleason, H. A. and A. Cronquist, Manual of Vascular Plants of Northeastern United States and Adjacent Canada, 1991, Second Edition) Cuckooflower
Carex atherodes Spreng. Awned Sedge
Carex aurea Nutt. Golden-Fruited Sedge
Carex bebbii (Bailey) Fern. Bebb's Sedge
Carex bicknellii Britton Bicknell's Sedge
Carex bullata Willd. Bull Sedge
Carex careyana Dewey Carey's Sedge
Carex collinsii Nutt. Collin's Sedge
Carex crinita Lam. var. brevicrinis Fernald Short-Hair Sedge
Carex eburnea Boott Ebony Sedge
Carex formosa Dewey Handsome Sedge
Carex garberi Fernald Elk Sedge
Carex geyeri Boott Geyer's Sedge
Carex gravida Bailey Heavy Sedge
Carex mitchelliana M. A. Curtis Mitchell's Sedge
Carex pauciflora Lightf. Few-Flowered Sedge
Carex polymorpha Muhl. Variable Sedge
Carex pseudocyperus L. Cyperus-Like Sedge
Carex retrorsa Schwein. Backward Sedge
Carex typhina Michx. Cat-Tail Sedge
Carex viridula Michx. Green Sedge
Cerastium velutinum Raf. var. villossissimum (Pennell) J. K. Morton Octoraro Creek Chickweed
Chasmanthium laxum (L.) H. O. Yates Slender Wild-Oats
Chenopodium foggii Wahl Fogg's Goosefoot
Chrysogonum virginianum L. Green-and-Gold
Cirsium horridulum Michx. Horrible Thistle
Cladium mariscoides (Muhl.) Torr. Twig-Rush
Clematis viorna L. Leather-Flower
Clethra acuminata Michx. Mountain Pepperbush
Clitoria mariana L. Butterfly Pea
Coeloglossum viride (L.) Hartm. Long-Bracted Green Orchis
Conioselinum chinense (L.) Britton, Stearns & Poggenb. Hemlock-Parsley
Cryptogramma stelleri (Gmel.) Prantl Slender Rockbrake
Cymophyllus fraserianus (Ker Gawl.) Kartesz & Gandhi Fraser's Sedge
Cyperus acuminatus Torr. & Hook. Short-Pointed Flatsedge
Cyperus diandrus Torr. Umbrella Sedge
Cyperus houghtonii Torr. Houghton's Flatsedge
Cyperus refractus Engelm. Reflexed Flatsedge
Cyperus retrorsus Chapman Retrorse Flatsedge
Cypripedium parviflorum Salisb. var. makasin (Source: Flora of North America) Northern Small Yellow Lady's-Slipper
Cypripedium parviflorum Salisb. var. parviflorum (Source: Flora of North America) Southern Small Yellow Lady's-Slipper
Delphinium exaltatum Aiton Tall Larkspur
Desmodium humifusum (Muhl.) Beck Trailing Tick-Trefoil
Diarrhena obovata (Gleason) Bradenburg Obovate Beakgrain
Dicentra eximia (Ker Gwal.) Torr. Wild Bleeding-Heart
Dichanthelium scoparium (Lam.) Gould Velvety Panic Grass
Dichanthelium xanthophysum (A. Gray) Freckmann Slender Panic Grass
Dodecatheon meadia L. Shooting-Star
Dryopteris campyloptera (Kunze) Clarkson Mountain Wood Fern
Echinochloa walteri (Pursh) A. Heller Walter's Barnyard-Grass
Eleocharis caribaea (Rottb.) S. F. Blake Capitate Spike-Rush
Eleocharis compressa Sull. Flat-Stemmed Spike-Rush
Eleocharis elliptica Kunth Slender Spike-Rush
Eleocharis obtusa (Willd.) Schult. var. peasei Svenson Wright's Spike-Rush
Eleocharis parvula (Roem. & Schult.) Link ex Buffon & Fingerh. Dwarf Spike-Rush
Eleocharis pauciflora (Lightf.) Link var. fernaldii Swenson Few-Flowered Spike-Rush
Eleocharis quadrangulata (Michx.) Roem. & Schult. Four-Angled Spike-Rush
Eleocharis rostellata (Torr.) Torr. Beaked Spike-Rush
Eleocharis tenuis (Willd.) Schult. var. verrucosa (Svenson) Svenson Slender Spike-Rush
Equisetum scirpoides Michx. (Source: Flora of North America) Dwarf Scouring-Rush
Equisetum variegatum Schleich. Variegated Scouring-Rush
Eriophorum gracile Koch ex Roth Slender Cotton-Grass
Eriophorum tenellum Nutt. Rough Cotton-Grass
Euphorbia ipecacuanhae L. Wild Ipecac
Euphorbia purpurea (Raf.) Fernald Glade Spurge
Eurybia spectabilis (Aiton) Nesom Showy Aster
Festuca paradoxa Desv. Cluster Fescue
Fraxinus profunda (Bush) Bush Pumpkin Ash
Galium labradoricum Wiegand Bog Bedstraw
Gaylussacia dumosa (Andr.) Torr. & A. Gray Dwarf Huckleberry
Geranium bicknellii Britton Cranesbill
Glyceria borealis (Nash) Batch. Small Floating Mannagrass
Glyceria obtusa (Muhl.) Trin. Blunt Manna-Grass
Goodyera tesselata Lodd. Checkered Rattlesnake-Plantain
Gymnopogon ambiguus (Michx.) Britton, Stearns & Poggenb. Broad-Leaved Beardgrass
Helianthemum bicknellii Fernald Bicknell's Hoary Rockrose
Heteranthera multiflora (Griseb.) Horn. Multi-Flowered Mud-Plantain
Hieracium traillii Greene Maryland Hawkweed
Hierochloe odorata (L.) Beauv. Vanilla Sweet-Grass
Huperzia porophila (F. E. Lloyd & Underw.) Holub Sandstone-Loving Firmoss
Hydrophyllum macrophyllum Nutt. Large-Leaved Water-Leaf
Iodanthus pinnatifidus (Michx.) Steud. Purple-Rocket
Iris cristata Sol. ex Aiton Dwarf Crested Iris
Iris prismatica Pursh Slender Blue Flag
Iris verna L. Dwarf Iris
Isotria medeoloides (Pursh) Raf. Small-Whorled Pogonia
Juncus brachycarpus Engelm. Short-Fruited Rush
Juncus dichotomus Elliott Forked Rush
Juncus longii Fern. Long's Rush
Juncus militaris Bigelow Bayonet Rush
Juncus scirpoides Lam. Scirpus-Like Rush
Lespedeza angustifolia (Pursh) Elliott Narrow-Leaved Bush-Clover
Ligusticum canadense (L.) Britton Nondo Lovage
Linum intercursum E. P. Bicknell Sandplain Wild Flax
Linum sulcatum Riddell Grooved Yellow Flax
Lipocarpha micrantha (Vahl) G. C. Tucker Common Hemicarpha
Listera australis Lindl. Southern Twayblade
Listera cordata (L.) R. Br. Heartleaf Twayblade
Listera smallii Wiegand Kidney-Leaved Twayblade
Lithospermum caroliniense (J. F. Gmel.) MacMill. Hispid Gromwell
Lithospermum latifolium Michx. American Gromwell
Lobelia kalmii L. Brook Lobelia
Lobelia puberula Michx. Downy Lobelia
Lonicera oblongifolia (Goldie) Hook. Swamp Fly-Honeysuckle
Lonicera villosa (Michx.) Roem. & Schult. Mountain Fly-Honeysuckle
Ludwigia decurrens Walter Upright Primrose-Willow
Ludwigia polycarpa Short & Peter False Loosestrife Seedbox
Lycopodiella alopecuroides (L.) Cranfill Foxtail Bog Clubmoss
Lycopodiella margueritae J. G. Bruce, W. H. Wagner & Beitel Marguerite's Clubmoss
Lycopus rubellus Moench. Taper-Leaved Bugle-Weed
Lyonia mariana (L.) D. Don Staggerbush
Malaxis bayardii Fernald Adder's-Mouth
Marshallia grandiflora Beadle & F. E. Boynton Large-Flowered Marshallia
Matelea obliqua (Jacq.) Woodson Oblique Milkvine
Mitella nuda L. Naked Bishop's-Cap
Monarda punctata L. Spotted Bee-Balm
Montia chamissoi (Ledeb. ex Spreng.) Greene Chamisso's Miner's-Lettuce
Muhlenbergia uniflora (Muhl.) Fern. Fall Dropseed Muhly
Myriophyllum farwellii Morong Farwell's Water-Milfoil
Myriophyllum sibiricum Komarov Northern Water-Milfoil
Myriophyllum verticillatum L. Whorled Water-Milfoil
Najas marina L. Holly-Leaved Naiad
Oclemena nemoralis (Aiton) E. Greene Leafy Bog Aster
Onosmodium molle Michx. var. hispidissimum (Mack.) Cronquist False Gromwell
Ophioglossum engelmannii Prantl Limestone Adder's-Tongue
Packera antennariifolia (Britton) W. A. Weber Á & Löve Cat's-Paw Ragwort
Panicum amarum Elliott var. amarulum (A. Hitchc. & Chase) P. G. Palmer Beachgrass
Parnassia glauca Raf. Grass-of-Parnassus
Passiflora lutea L. Passion-Flower
Paxistima canbyi A. Gray Canby's Mountain-Lover
Persicaria careyi (Olney) Greene Carey's Smartweed
Persicaria setacea (Baldwin) Small Swamp Smartweed
Phlox ovata L. Mountain Phlox
Phlox subulata L. ssp. brittonii (Small) Wherry Moss Pink
Piptatherum pungens (Torr. ex Spreng.) Dorn Slender Mountain Ricegrass
Platanthera aquilonis Sheviak, Lindleyana (Source: Flora of North America) Northern Green Orchid
Platanthera dilatata (Pursh) Lindl. ex Beck Tall White Bog-Orchid
Platanthera huronensis (Nutt.) Lindl. Huron Green Orchid
Poa autumnalis Muhl. ex Elliott Autumn Bluegrass
Polemonium van-bruntiae Britton Jacob's-Ladder
Polygala cruciata L. Cross-Leaved Milkwort
Polygala curtissii A. Gray Curtis' Milkwort
Polygala incarnata L. Pink Milkwort
Polystichum braunii (Spenn.) Fee Braun's Holly Fern
Populus balsamifera L. Balsam Poplar
Potamogeton friesii Rupr. Fries' Pondweed
Potamogeton gramineus L. Grassy Pondweed
Potamogeton hillii Morong Hill's Pondweed
Potamogeton obtusifolius Mert. & Koch Blunt-Leaved Pondweed
Potamogeton pulcher Tuck. Spotted Pondweed
Potamogeton strictifolius A. Benn. Narrow-Leaved Pondweed
Potamogeton tennesseensis Fernald Tennessee Pondweed
Potamogeton vaseyi J. W. Robbins Vasey's Pondweed
Potentilla fruticosa L. Shrubby Cinquefoil
Potentilla paradoxa Nutt. Bushy Cinquefoil
Potentilla tridentata Aiton Three-Toothed Cinquefoil
Prunus maritima Marshall Beach Plum
Prunus nigra Ait. Canada Plum
Ptilimnium capillaceum (Michx.) Raf. Mock Bishop-Weed
Pycnanthemum torrei Benth. Torrey's Mountain-Mint
Quercus falcata Michx. Southern Red Oak
Quercus phellos L. Willow Oak
Quercus shumardii Buckley Shumard Oak
Ranunculus fascicularis Muhl. ex J. M. Bigelow Tufted Buttercup
Ratibida pinnata (Vent.) Barnhart Gray-Headed Prairie Coneflower
Rhamnus lanceolata Pursh Lanceolate Buckthorn
Rhexia mariana L. Maryland Meadow-Beauty
Rhododendron atlanticum (Ashe) Rehder Dwarf Azalea
Rhynchospora capillacea Torr. Capillary Beak-Rush
Ribes missouriense Nutt. ex Torr. & A. Gray Missouri Gooseberry
Rubus cuneifolius Pursh Sand Blackberry
Ruellia humilis Nutt. Fringed-Leaved Petunia
Sagittaria calycina Engelm. Long-Lobed Arrowhead
Scheuchzeria palustris L. Pod-Grass
Schoenoplectus acutus (Muhl. ex Bigel.) Löve & Löve Hard-Stemmed Bulrush
Schoenoplectus smithii (A. Gray) Sojak Smith's Bulrush
Schoenoplectus torreyi (Olney) Palla Torrey's Bulrush
Scirpus ancistrochaetus Schuyler Northeastern Bulrush
Scleria minor (Brittton) Stone Small Nut-Rush
Scleria muhlenbergii Steud. Reticulated Nut-Rush
Scleria verticillata Muhl. ex Willd. Whorled Nut-Rush
Sedum rosea (L.) Scop. Roseroot Stonecrop
Sericocarpus linifolius (L.) Britton, Stearns & Poggenb. Narrow-Leaved White-Topped Aster
Shepherdia canadensis (L.) Nutt. Canada Buffalo-Berry
Sida hermaphrodita (L.) Rusby Virginia Mallow
Sisyrinchium atlanticum E. P. Bicknell Eastern Blue-Eyed-Grass
Solidago arguta Aiton var. harrisii (E. S. Steele) Cronquist Harris' Goldenrod
Solidago curtissii Torr. & A. Gray Curtis' Goldenrod
Solidago erecta Banks ex Pursh Slender Goldenrod
Solidago simplex Kunth ssp. randii (Porter) Ringius var. racemosa (Greene) Ringius Sticky Goldenrod
Sorbus decora (Sarg.) Schneid. Showy Mountain-Ash
Sparganium androcladum (Engelm.) Morong Branching Bur-Reed
Spiranthes casei Catling & Cruise Case's Ladies'-Tresses
Spiranthes ovalis Lindl. October Ladies'-Tresses
Spiranthes romanzoffiana Cham. Hooded Ladies'-Tresses
Spiranthes vernalis Engelm. & A. Gray Spring Ladies'-Tresses
Sporobolus clandestinus (Biehler) A. Hitchc. Rough Dropseed
Sporobolus cryptandrus (Torr.) A. Gray Sand Dropseed
Sporobolus heterolepis (A. Gray) A. Gray Prairie Dropseed
Stachys nuttallii Shuttlew. ex Benth. Nuttall's Hedge-Nettle
Swertia caroliniensis (Walter) Kuntze American Columbo
Symphyotrichum boreale (Torr. & Gray) Á Löve & D. Löve Northern Bog Aster
Taenidia montana (Mack.) Cronquist Mountain Pimpernel
Thalictrum coriaceum (Britt.) Small Thick-Leaved Meadow-Rue
Trichostema setaceum Houtt. Narrow-Leaved Blue-Curls
Trifolium virginicum Small Kate's-Mountain Clover
Triphora trianthophora (Swartz) Rydb. Nodding Pogonia
Triplasis purpurea Chapman] (Walter) Chapm. Purple Sandgrass
Trollius laxus Salisb. Spreading Globe-Flower
Veronia glauca (L.) Willd. Tawny Ironweed
Viburnum nudum L. Possum Haw Viburnum
Viola brittoniana Pollard Coast Violet
Vitis novae-angliae Fernald New England Grape
Vitis rupestris Scheele Sand Grape
Zigadenus glaucus (Nutt.) Nutt. White Camas

§ 45.13. Pennsylvania Threatened.

 Plant species classified as Pennsylvania Threatened are as follows:

Scientific Name Common Name
Aconitum uncinatum L. Blue Monkshood
Actaea podocarpa DC American Bugbane
Ammophila breviligulata Fernald American Beachgrass
Arceuthobium pusillum Peck Dwarf Mistletoe
Aristida purpurascens Poir. Arrow-Feather Three-Awned Grass
Asplenium bradleyi D. C. Eaton Bradley's Spleenwort
Baptisia australis (L.) R. Br. Blue False Indigo
Bidens bidentoides (Nutt.) Britt. Swamp Beggar-Ticks
Bouteloua curtipendula (Michx.) Torr. Tall Gramma
Camassia scilloides (Raf.) Cory Wild Hyacinth
Carex alata Torr. Broad-Winged Sedge
Carex aquatilis Wahlenb. Water Sedge
Carex cryptolepis Mack. Northeastern Sedge
Carex diandra Schrank Lesser Panicled Sedge
Carex flava L. Yellow Sedge
Carex oligosperma Michx. Few-Seeded Sedge
Carex paupercula Michx. Bog Sedge
Carex prairea Dewey Prairie Sedge
Carex schweinitzii Schwein. Schweinitz's Sedge
Carex sterilis Willd. Atlantic Sedge
Carex tetanica Schkuhr Wood's Sedge
Carex wiegandii Mack. Wiegand's Sedge
Chamaesyce polygonifolia (L.) Small Seaside Spurge
Chrysopsis mariana (L.) Elliott Maryland Golden-Aster
Cypripedium reginae Walter Showy Lady's-Slipper
Digitaria cognatum (Schultes) Pilger Fall Witch-Grass
Dodecatheon amethystinum (Fassett) Fassett Jeweled Shooting-Star
Eleocharis intermedia (Muhl.) Schult. Matted Spike-Rush
Eleocharis robbinsii Oakes Robbins' Spike-Rush
Ellisia nyctelea L. Ellisia
Erigenia bulbosa (Michx.) Nutt. Harbinger-of-Spring
Eriophorum viridicarinatum (Engelm.) Fernald Thin-Leaved Cottongrass
Euthamia caroliniana (L.) Greene ex Porter & Britton Grass-Leaved Goldenrod
Fimbristylis annua (All.) Roem. & Schult. Annual Fimbry
Gaylussacia brachycera (Michx.) A. Gray Box Huckleberry
Hypericum densiflorum Pursh Bushy St. John's-Wort
Hypericum majus (A. Gray) Britton Canadian St. John's-Wort
Ilex opaca Aiton American Holly
Juncus alpinoarticulatus Chaix in Vill. ssp. nodulosus (Wahlenb.) Hämet-Ahti. Richardson's Rush
Juncus arcticus Willd. var. littoralis (Engelm.) Boivin. Baltic Rush
Juncus brachycephalus (Engelm.) L. Buch. Small-Headed Rush
Juncus torreyi Coville Torrey's Rush
Lathyrus japonicus Willd. Beach Pea
Lathyrus ochroleucus Hook. Wild Pea
Linnaea borealis L. Twinflower
Lobelia dortmanna L. Water Lobelia
Lycopodiella appressa (Chapm.) Cranfill Appressed Bog Clubmoss
Magnolia tripetala (L.) L. Umbrella Magnolia
Magnolia virginiana L. Sweetbay Magnolia
Melica nitens Nutt. Three-Flowered Melic Grass
Minuartia glabra (Michx.) Mattf. Appalachian Sandwort
Myrica gale L. Sweet-gale
Myriophyllum tenellum Bigelow Slender Water-Milfoil
Najas gracillima (A. Braun) Magnus Bushy Naiad
Nymphoides cordata (Elliott) Fernald Floating-Heart
Oenothera argillicola Mack. Shale-Barren Evening-Primrose
Panicum tuckermanii Fernald Tuckerman's Panic-Grass
Phemeranthus teretifolius (Pursh) Raf. Round-Leaved Fameflower
Platanthera peramoena (A. Gray) A. Gray Purple Fringeless Orchid
Poa paludigena Fernald & Wiegand Bog Bluegrass
Potamogeton confervoides Reichenb. Tuckerman's Pondweed
Potamogeton richardsonii (Benn.) Rydb. Red-Head Pondweed
Ptelea trifoliata L. Hoptree
Ranunculus longirostris Godron Eastern White Water-Crowfoot
Ribes triste Pallas Wild Red Currant
Ruellia strepens L. Limestone Petunia
Salix candida Flugge ex Willd. Hoary Willow
Salix serissima (Bailey) Fernald Autumn Willow
Scirpus pedicellatus Fernald Stalked Bulrush
Scleria pauciflora Muhl. ex Willd. Few-Flowered Nutrush
Solidago uliginosa Nutt. Bog Goldenrod
Spiraea betulifolia Pallas var. corymbosa (Raf.) Maxim. Dwarf Spiraea
Streptopus amplexifolius (L.) DC Twisted-Stalk
Symphyotrichum depauperatum (Fernald) Nesom Serpentine Aster
Symphyotrichum novi-belgii (L.) Nesom var. novi-belgii New York Aster
Utricularia intermedia Hayne Flat-Leaved Bladderwort
Viola appalachiensis L. K. Henry Appalachian Blue Violet
Vittaria appalachiana Farrar & Mickel Appalachian Grass-Fern

§ 45.14. Pennsylvania Rare.

 Plant species classified as Pennsylvania Rare are as follows:

Scientific Name Common Name
Amaranthus cannabinus (L.) Sauer Water-Hemp Ragweed
Andromeda polifolia L. Bog-Rosemary
Aplectrum hyemale (Muhl. ex Willd.) Nutt. Puttyroot
Baccharis halimifolia L. Eastern Baccharis
Cakile edentula (Bigelow) Hook. American Sea-Rocket
Carex disperma Dewey Soft-Leaved Sedge
Carex lasiocarpa Ehrh. Many-Fruited Sedge
Collinsia verna Nutt. Spring Blue-Eyed Mary
Cyperus engelmannii Steud. Engelmann's Flatsedge
Cyperus schweinitzii Torr. Schweinitz's Flatsedge
Dichanthelium commonsianum (Ashe) Freckmann var. euchlamydeum (Shinners) Pohl Cloaked Panic Grass
Eleocharis olivacea Torr. Capitate Spike-Rush
Epilobium strictum Muhl. Downy Willow-Herb
Gaultheria hispidula (L.) Muhl. ex Bigelow Creeping Snowberry
Juncus filiformis L. Thread Rush
Ledum groenlandicum Oeder Common Labrador-Tea
Lupinus perennis L. Blue Lupine
Lygodium palmatum (Bernh.) Sw. Hartford Fern
Menziesia pilosa (Michx.) Juss. Minniebush
Opuntia humifusa (Raf.) Raf. Eastern Prickly-Pear Cactus
Orontium aquaticum L. Golden Club
Packera anonyma (A. W. Wood) W. A. Weber & Á Löve Appalachian Groundsel
Potamogeton robbinsii Oakes Flat-Leaved Pondweed
Potamogeton zosteriformis Fernald Flat-Stemmed Pondweed
Potentilla anserina L. Silverweed
Prunus pumila L. var pumila Sand Cherry
Pyrularia pubera Michx. Buffalo-Nut
Ranunculus micranthus (Gray) Nutt. ex Torr. & Gray Small-Flowered Crowfoot
Rotala ramosior (L.) Koehne Toothcup
Sagittaria subulata (L.) L. Buch. Subulate Arrowhead
Schizachyrium scoparium (Michx.) Nash var. littorale (Nash) Gould Seaside Bluestem
Schoenoplectus fluviatilis (Torr.) Strong River Bulrush
Sedum telephioides Michx. Allegheny Stonecrop
Solidago roanensis Porter Tennessee Golden-Rod
Tipularia discolor (Pursh) Nutt. Cranefly Orchid
Trillium nivale Riddell Snow Trillium
Wolffiella gladiata (Hegelm.) Hegelm. Bog-mat
Xyris montana Ries. Yellow Eyed Grass
Zizania aquatica L. Indian Wild Rice

§ 45.15. Pennsylvania Vulnerable.

 Plant species classified as Pennsylvania Vulnerable are as follows:

Scientific Name Common Name
Cypripedium parviflorum Salisb. var. pubescens (Willd.) Correll Large Yellow Lady's-Slipper
Hydrastis canadensis L. Goldenseal
Panax quinquefolius L. Ginseng

§ 45.21. Tentatively Undetermined.

 Plant species classified as Tentatively Undetermined are as follows:

Scientific Name Common Name
Adiantum pedatum L. ssp. caulderi Cody Northern Maidenhair Fern
Agalinis obtusifolia Raf. False-Foxglove
Aletris farinosa L. Colic-Root
Ambrosia psilostachya DC. Naked-Spiked Ambrosia
Amelanchier humilis Wiegand Low Serviceberry
Amelanchier obovalis (Michx.) Ashe Coastal Juneberry
Amelanchier sanguinea (Pursh) DC. Roundleaf Juneberry
Andropogon glomeratus (Walter) Britton, Stearns & Poggenb. Bushy Bluestem
Antennaria solitaria Rydb. Single-Headed Pussy-Toes
Arabis hirsuta (L.) Scop. Western Hairy Rock-Cress
Aristida dichotoma Michx. var. curtissii A. Gray Poverty Grass
Aristida longespica Poir. var. geniculata (Raf.) Fernald Long-Spike Three-Awned Grass
Aristolochia macrophylla Lam. Pipevine
Carex buxbaumii Wahlenb. Brown Sedge
Carex crawfordii Fernald Crawford's Sedge
Carex haydenii Dewey Cloud Sedge
Carex limosa L. Mud Sedge
Carex longii Mack. Long's Sedge
Carex lupuliformis Sartwell False Hop Sedge
Carex meadii Dewey Mead's Sedge
Carex mesochorea Mack. Midland Sedge
Castilleja coccinea (L.) Spreng. Scarlet Indian Paintbrush
Chasmanthium latifolium (Michx.) H. O. Yates Wild-Oats
Chenopodium capitatum (L.) Asch. Strawberry Goosefoot
Corallorrhiza wisteriana Conrad Spring Coral-Root
Crataegus brainerdii Sarg. Brainerd's Hawthorne
Crataegus mollis (Torr. & A. Gray) Scheele Downy Hawthorne
Cuscuta cephalanthi Engelm. Buttonbush Dodder
Cuscuta corylii Engelm. Hazel Dodder
Cuscuta polygonorum Engelm. Smartweed Dodder
Cyperus odoratus L. Rusty Flatsedge
Cyperus tenuifolius (Steud.) Dandy Thin-Leaved Flatsedge
Cystopteris laurentiana (Weath.) Blasdell Laurentian Bladder-Fern
Desmodium glabellum (Michx.) Kuntze Tall Tick-Trefoil
Desmodium nuttallii (Schindl.) Schub. Nuttall's Tick-Trefoil
Dichanthelium annulum (Ashe) LeBlond Annulus Panic Grass
Dichanthelium boreale (Nash) Freckmann Northern Panic Grass
Dichanthelium commonsianum (Ashe) Freckmann Cloaked Panic Grass
Dichanthelium lucidum (Ashe) LeBlond Shining Panic Grass
Dichanthelium villosissimum (Nash) Freckmann Long-Haired Panic Grass
Dichanthelium yadkinense (Ashe) Mohlenbr. Yadkin River Panic Grass
Dracocephalum parviflorum Nutt. American Dragonhead
Elatine minima (Nutt.) Fisch. & C. A. Mey Small Waterwort
Elymus virginicus L. var. submuticus Hook. Wild Rye
Epilobium palustre L. Marsh Willow-Herb
Eupatorium rotundifolium L. Round-Leaved Thoroughwort
Filipendula rubra (Hill) B. L. Rob. Queen-of-the-Prairie
Gentiana alba Muhl. ex Nutt. Yellow Gentian
Gentiana saponaria L. Soapwort Gentian
Gentiana villosa L. Striped Gentian
Glyceria acutiflora Torr. Sharp-Flowered Manna-Grass
Gratiola aurea Muhl. ex Pursh Golden Hedge-Hyssop
Gymnocarpium appalachianum K. M. Pryer & Haufler Appalachian Oak Fern
Houstonia purpurea L. var. purpurea Purple Bluets
Hypericum drummondii (Grev. & Hook) Torr. & A. Gray Nits-and-Lice
Juncus biflorus Elliott Grass-Leaved Rush
Lathyrus palustris L. Vetchling
Lemna turionifera Landolt Winter Duckweed
Leucothoe racemosa (L.) A. Gray Swamp Dog-Hobble
Liatris scariosa (L.) Willd. Northern Blazing-Star
Lonicera hirsuta Eaton Hairy Honeysuckle
Luzula bulbosa (A. W. Wood) Rybd. Wood-Rush
Lythrum alatum Pursh Winged Loosestrife
Malaxis monophyllos (L.) Swartz var. brachypoda (A. Gray) F. Morris & E. A. Eames White Adder's-Mouth
Meehania cordata (Nutt.) Britton Heart-Leafed Meehania
Muhlenbergia cuspidata (Torr.) Rydb. Sharp-Pointed Muhly
Nuphar microphylla (Pers.) Fernald Small Yellow Pond-Lily
Oenothera pilosella Raf. Evening-Primrose
Oxydendrum arboreum (L.) DC. Sourwood
Oxypolis rigidior (L.) Raf. Stiff Cowbane
Packera plattensis (Nutt.) W. A. Weber & Á Löve Prairie Ragwort
Panicum flexile (Gatt.) Scribn. Wiry Witchgrass
Panicum longifolium Torr. Long-Leaved Panic Grass
Paronychia fastigiata (Raf.) Fernald var. nuttallii (Small) Fernald Whitlow Wort
Parthenium intergrifolium L. American Fever-Few
Paspalum floridanum (Michx.) var. glabratum Engelm. ex Vasey Florida Beadgrass
Paspalum laeve (Michx.) var. pilosum Scribn. Field Beadgrass
Paspalum setaceum Michx. Slender Beadgrass
Phlox pilosa L. Downy Phlox
Phyla lanceolata (Michx.) Greene Lance Fog-Fruit
Physalis virginiana Mill. Virginia Ground-Cherry
Platanthera ciliaris (L.) Lindl. Yellow Fringed Orchid
Platanthera hookeri (Torr. ex Gray) Lindl. Hooker's Orchid
Pluchea odorata (L.) Cass. Shrubby Camphor-Weed
Poa languida A. Hitchc. Drooping Bluegrass
Podostemum ceratophyllum Michx. Riverweed
Polygala polygama Walter Racemed Milkwort
Polygonella articulata (L.) Meisn. Eastern Jointweed
Polygonum amphibium L. var. stipulaceum (Coleman) Fern. Stipuled Water-Smartweed
Polygonum ramosissimum Michx. Bushy Knotweed
Potamogeton filiformis Pers. var. borealis (Raf.) St. John Slender Pondweed
Potamogeton oakesianus J. W. Robbins Oakes' Pondweed
Potamogeton perfoliatus L. Clasping-Stemmed Pondweed
Pycnanthemum verticillatum (Michx.) Pers. var. pilosum (Nutt.) Cooperr. Hairy Mountain-Mint
Ranunculus aquatilis L. var. diffusus With. White Water-Crowfoot
Ranunculus flammula L. Lesser Spearwort
Rhamnus alnifolia L' Hér Alder-Leaved Buckthorn
Rhynchospora recognita (Gale) Kral Small Globe Beak-Rush
Ribes lacustre (Pers.) Poir. Swamp Currant
Rorippa palustris (L.) Besser var. palustris (Gleason, H. A. and A Cronquist, Manual of Vascular Plants of Northeastern United States and Adjacent Canada, 1991, Second Edition) Yellow Cress
Rosa virginiana P. Mill. Virginia Rose
Rubus setosus Bigelow Small Bristleberry
Rumex hastatulus Baldwin ex Elliott Heart Sorrell
Salix petiolaris Sm. Meadow Willow
Salvia reflexa Hornem. Lance-Leaved Sage
Samolus parviflorus Raf. Pineland Pimpernel
Saxifraga micranthidifolia (Haw.) Steud. Lettuce Saxifrage
Scleria triglomerata Michx. Whip Nut-Rush
Scutellaria saxatilis Riddell Rock Skullcap
Senna marilandica (L.) Link Wild Senna
Sisyrinchium albidum Raf. Blue-Eyed-Grass
Solidago rigida L. Hard-Leaved Goldenrod
Spiranthes tuberosa Raf. Slender Ladies'-Tresses
Stachys hyssopifolia Michx. Hyssop Hedge-Nettle
Stylosanthes biflora (L.) Britton, Stearns & Poggenb. Pencil-Flower
Symphyotrichum dumosum (L.) Nesom Bushy Aster
Symphyotrichum ericoides (L.) Nesom White Heath Aster
Taxus canadensis Marsh. American Yew
Trillium flexipes Raf. Declined Trillium
Triosteum angustifolium L. Horse Gentian
Tripsacum dactyloides (L.) L. Eastern Gammagrass
Uvularia pudica Michx. Mountain Bellwort
Viburnum trilobum Marshall Highbush-Cranberry
Viola renifolia A. Gray Kidney-Leaved Violet
Viola tripartita Elliott Three-parted Violet
Vitis cinerea (Englem. in A. Gray) Englem. ex Millardet var. baileyana (Munson) Comeaux Possum-Grape
Wolffia borealis (Engelm.) Landolt Dotted Dotted Watermeal
[Pa.B. Doc. No. 18-1970. Filed for public inspection December 21, 2018, 9:00 a.m.]



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