§ 45.12. Pennsylvania Endangered.
Plant species classified as Pennsylvania Endangered are as follows:
| Scientific Name | Common Name |
| Aconitum reclinatum Gray | White Monkshood |
| Acorus americanus (Raf.) Raf. | Sweet Flag |
| Agalinus paupercula (Gray) Britt. | Small-Flowered False-Foxglove |
| Alisma plantago-aquatica L. var. americana Schultes & Schultes | Broad-Leaved Water-Plaintain |
| Alnus viridis (Chaix) DC. | Mountain Alder |
| Alopecurus carolinianus Walt. | Tufted Foxtail |
| Amelanchier bartramiana (Tausch) M. Roemer | Oblong-Fruited Serviceberry |
| Ammania coccinea Rottb. | Scarlet Ammannia |
| Anemone cylindrica Gray | Long-Fruited Anemone |
| Arabis missouriensis Greene | Missouri Rock-Cress |
| Arethusa bulbosa L. | Swamp-Pink |
| Arnica acaulis (Walt.) BSP. | Leopard’s-Bane |
| Artemisia campestris L. ssp. caudata | Beach Wormwood |
| (Michx.) Hall & Clements | |
| Asplenium resiliens Kunze | Black-Stemmed Spleenwort |
| Aster borealis (Torr. & Gray) Prov. | Rush Aster |
| Aster nemoralis Ait. | Bog-Aster |
| Aster solidagineus Michx. | Narrow-Leaved White-Topped Aster |
| Aster spectabilis Ait. | Low Showy Aster |
| Boltonia asteroides (L.) L’Her. | 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 Britt. | Bicknell’s Sedge |
| Carex bullata Schkuhr | Bull Sedge |
| Carex careyana Dewey | Carey’s Sedge |
| Carex collinsii Nutt. | Collin’s Sedge |
| Carex crinita Lam. var. brevicrinis Fern. (Gleason, H. A. and A. Cronquist, Manual of Vascular Plants of Northeastern United States and Adjacent Canada, 1991, Second Edition) | Short Hair Sedge |
| Carex eburnea Boott | Ebony Sedge |
| Carex formosa Dewey | Handsome Sedge |
| Carex garberi Fern. | 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 arvense (L.) var. | Mouse-Ear Chickweed |
| villosissimum Pennell | |
| Chasmanthium laxum (L.) Yates | Slender Sea-Oats |
| Chenopodium foggii H. A. Wahl | Fogg’s Goosefoot |
| Chrysogonum virginianum L. | Green-and-Gold |
| Cirsium horridulum Michx. | Horrible Thistle |
| Cladium mariscoides (Muhl.) Torr. | Twig Rush |
| Clematis viorna L. | Vase-Vine Leather-Flower |
| Clethra acuminata Michx. | Mountain Pepper-Bush |
| Clitoria mariana L. | Butterfly-Pea |
| Conioselinum chinense (L.) BSP. | Hemlock-Parsley |
| Cryptogramma stelleri (Gmel) Prantl | Slender Rock-Brake |
| Cymophyllus fraseri (Andr.) Mackenzie | Fraser’s Sedge |
| Cynanchum laeve (Michx.) Pers. | Smooth Swallow-Wort |
| Cyperus acuminatus Torr. & Hook. | Short-Pointed Flatsedge |
| Cyperus diandrus Torr. | Umbrella Flatsedge |
| Cyperus houghtonii Torr. | Houghton’s Flatsedge |
| Cyperus refractus Engelm. ex Steud. | Reflexed Flatsedge |
| Cyperus retrorsus Chapman | Retrorse Flatsedge |
| Cypripedium parviflorum Salisb. | Small Yellow Lady’s-Slipper |
| Delphinium exaltatum Ait. | Tall Larkspur |
| Desmodium humifusum (Muhl.) Beck | Trailing Tick-Trefoil |
| Diarrhena obovata (Gleason) Bradenburg (Morris Arboretum, 1992 Pennsylvania Flora Database) | American Beakgrain |
| Dicentra eximia (Ker-Gwal.) Torr. | Wild Bleeding-Hearts |
| Dodecatheon meadia L. | Common Shooting-Star |
| Dryopteris campyloptera (Kunze) Clarkson | Mountain Wood Fern |
| Echinochloa walteri (Pursh) Heller | Walter’s Barnyard-Grass |
| Eleocharis caribaea (Rottb.) Blake | Capitate Spike-Rush |
| Eleocharis compressa Sullivant (Gleason, H. A. and A Cronquist, Manual of Vascular Plants of Northeastern United States and Adjacent Canada, 1991, Second Edition) | Flat-Stemmed Spike-Rush |
| Eleocharis elliptica Kunth | Slender Spike-Rush |
| Eleocharis obtusa (Willd.) Schultes var. peasei Svenson (Fernald, M. L., Gray’s Manual of Botany, 1970, Eighth edition) | Wright’s Spike-Rush |
| Eleocharis parvula (Roemer & Schultes) Link ex Buff. & Fingerh. | Little-Spike Spike-Rush |
| Eleocharis pauciflora (Lightf.) Link var. fernaldii Svens. (Fernald, M. L., Gray’s Manual of Botany, 1970, Eighth edition) | Few-Flowered Spike-Rush |
| Eleocharis quadrangulata (Michx.) | Four-Angled Spike-Rush |
| Roemer & Schultes | |
| Eleocharis rostellata Torr. | Beaked Spike-Rush |
| Eleocharis tenuis (Willd.) Schultes var. verrucosa (Svenson) Svenson (Gleason, H. A. and A. Cronquist, Manual of Vascular Plants of Northeastern United States and Adjacent Canada, 1991, Second Edition) | Slender Spike-Rush |
| Elephantopus carolinianus Raeusch. | Elephant’s-Foot |
| Epilobium strictum Muhl. | Downey Willow-Herb |
| Equisetum variegatum Schleich. ex Weber & C. Mohr | Variegated Horsetail |
| Eriophorum gracile W.D.J. Koch | Slender Cottongrass |
| Eriophorum tenellum Nutt. | Rough Cottongrass |
| Euphorbia ipecacuanhae L. | Wild Ipecac |
| Euphorbia purpurea (Raf.) Fern. | Glade Spurge |
| Festuca paradoxa Desv. | Cluster Fescue |
| Frasera caroliniensis Walt. | American Columbo |
| Galium labradoricum (Wieg.) Wieg. | Labrador Marsh Bedstraw |
| Gaylussacia dumosa (Andr.) Torr. & Gray | Dwarf Huckleberry |
| Geranium bicknellii Britt. | Cranesbill |
| Glyceria borealis (Nash) Batchelder | Small-Floating Manna-Grass |
| Glyceria obtusa (Muhl.) Trin. | Blunt Manna-Grass |
| Gymnopogon ambiguus (Michx.) BSP. | Broad-Leaved Beardgrass |
| Helianthemum bicknellii Fern. | Bicknell’s Hoary Rockrose |
| Hemicarpha micrantha (Vahl) Britt. | Common Hemicarpha |
| Heteranthera multiflora (Griseb) Horn. (Gleason, H. A. and A Cronquist, Manual of Vascular Plants of Northeastern United States and Adjacent Canada, 1991, Second Edition) | Multi-Flowered Mud-Plantain |
| Hieracium traillii Greene | Maryland Hawkweed |
| Hierochloe odorata (L.) Beauv. | Vanilla Sweet-Grass |
| Hydrophyllum macrophyllum Nutt. | Large-Leaved Water-Leaf |
| Iodanthus pinnatifidus (Michx.) Steud. | Purple Rocket |
| Iris cristata Soland. | Crested Dwarf Iris |
| Iris prismatica Pursh | Slender Blue Iris |
| Iris verna L. | Dwarf Iris |
| Isotria medeoloides (Pursh) Raf. | Small-Whorled Pogonia |
| Juncus brachycarpus Engelm. | Short-Fruited Rush |
| Juncus dichotomus Ell. | Forked Rush |
| Juncus longii Fern. | Long’s Rush |
| Juncus militaris Bigelow | Bayonet Rush |
| Juncus scirpoides Lam. | Scirpus-Like Rush |
| Lespedeza angustifolia (Pursh) Ell. | Narrowleaf Bushclover |
| Ligusticum canadense (L.) Britt. | Nondo Lovage |
| Linum intercursum Bickn. | Sandplain Wild Flax |
| Linum sulcatum Riddell | Grooved-Yellow Flax |
| Listera australis Lindl. | Southern Twayblade |
| Listera cordata (L.) R.Br. | Heart-Leaved Twayblade |
| Listera smallii Wieg. | Kidney-Leaved Twayblade |
| Lithospermum caroliniense (J. F. Gmel.) MacM. | 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.) Roemer & Schultes | Mountain Fly Honeysuckle |
| Ludwigia decurrens Walt. | Upright Primrose-Willow |
| Ludwigia polycarpa Short & Peter | False Loosestrife Seedbox |
| Lycopodium alopecuroides L. | Foxtail Clubmoss |
| Lycopodium porophilum Lloyd & Underwood | Rock Clubmoss |
| Lycopus rubellus Moench | Taper-Leaved Bugle-Weed |
| Lyonia mariana (L.) D. Don | Stagger-Bush |
| Marshallia grandiflora Beadle & F. E. Boynton | Large-Flowered Marshallia |
| Matelea obliqua (Jacq.) Woods. | Oblique Milkvine |
| Megalodonta beckii (Torr. ex Spreng.) Greene | Beck’s Water-Marigold |
| 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 exalbescens Fern. | Northern Water-Milfoil |
| Myriophyllum farwellii Morong | Farwell’s Water-Milfoil |
| Myriophyllum heterophyllum Michx. | Broad-Leaved Water-Milfoil |
| Myriophyllum verticillatum L. | Whorled Water-Milfoil |
| Najas marina L. | Holly-Leaved Naiad |
| Nelumbo lutea (Willd.) Pers. | American Lotus |
| Onosmodium hispidissimum Mackenzie | False Gromwell |
| Ophioglossum engelmannii Prantl | Limestone Adder’s Tongue |
| Oryzopsis pungens (Torr. ex Spreng.) A. S. Hitchc. | Slender Mountain-Ricegrass |
| Panicum amarum Ell. var. amarulum (A. S. Hitchc. & Chase) P. G. Palmer (Morris Arboretum, 1992, Pennsylvania Flora Database) | Southern Sea-Beach Panic-Grass |
| Panicum scoparium (Lam.) Gould (Morris Arboretum, 1992, Pennsylvania Flora Database) | Velvety Panic-Grass |
| Panicum xanthophysum (Gray) Freckmann (Morris Arboretum, 1992, Pennsylvania Flora Database) | Slender Panic-Grass |
| Parnassia glauca Raf. | Carolina Grass-of-Parnassus |
| Passiflora lutea L. | Passion-Flower |
| Paxistima canbyi A. Gray | Canby’s Mountain-Lover |
| Phlox ovata L. | Mountain Phlox |
| Phlox subulata L. ssp. brittonii (Small) Wherry | Moss Pink |
| Platanthera dilatata (Pursh) Lindl. ex Beck | Leafy White Orchid |
| Platanthera hyperborea (L.) Lindl. | Leafy Northern Green Orchid |
| Poa autumnalis Muhl. ex Ell. | Autumn Bluegrass |
| Polemonium vanbruntiae Britt. | Jacob’s-Ladder |
| Polygala cruciata L. | Cross-Leaved Milkwort |
| Polygala curtissii Gray | Curtis’ Milkwort |
| Polygala incarnata L. | Pink Milkwort |
| Polygonum careyi Olney | Carey’s Smartweed |
| Polygonum setaceum Baldw. ex Ell. var. interjectum Fern. | Swamp Smartweed |
| Polystichum braunii (Spenner) 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 Tuckerman | Spotted Pondweed |
| Potamogeton strictifolius Benn. | Narrow-Leaved Pondweed |
| Potamogeton tennesseensis Fern. | Tennessee Pondweed |
| Potamogeton vaseyi J. W. Robbins | Vasey’s Pondweed |
| Potentilla fruticosa L. | Shrubby Cinquefoil |
| Potentilla paradoxa Nutt. ex Torr. & Gray | Bushy Cinquefoil |
| Potentilla tridentata (Soland) Ait. | Three-Toothed Cinquefoil |
| Prenanthes crepidinea Michx. | Crepis Rattlesnake-Root |
| Prunus maritima Marsh. | Beach Plum |
| Prunus nigra Ait. | Canada Plum |
| Ptilimnium capillaceum (Michx.) Raf. | Mock Bishop-Weed |
| Pycnanthemum pycnanthemoides (Leavenw.) Fern. | Southern Mountain-Mint |
| Pycnanthemum torrei Benth. | Torrey’s Mountain-Mint |
| Quercus falcata Michx. | Spanish Oak |
| Quercus phellos L. | Willow Oak |
| Quercus shumardii Buckl. | Shumard’s Oak |
| Ranunculus fascicularis Muhl. ex Bigelow | Tufted Buttercup |
| Rhamnus lanceolata Pursh | Lanceolate Buckthorn |
| Rhexia mariana L. | Maryland Meadow-Beauty |
| Rhododendron atlanticum (Ashe) Rehd. | Dwarf Azalea |
| Rhynchospora capillacea Torr. | Capillary Beaked-Rush |
| Ribes missouriense Nutt. ex Torr. & Gray | Missouri Gooseberry |
| Ruellia humilis Nutt. | Fringed-Leaved Petunia |
| Sagittaria calycina Engelm. var. | Long-Lobed Arrow-Head |
| spongiosa Engelm. | |
| Scheuchzeria palustris L. | Pod-Grass |
| Scirpus acutus Muhl. ex Bigelow | Hard-Stemmed Bullrush |
| Scirpus ancistrochaetus Schuyler | Northeastern Bullrush |
| Scirpus smithii Gray | Smith’s Bullrush |
| Scirpus torreyi Olney | Torrey’s Bullrush |
| Scleria minor (Britt.) W. Stone | Minor Nutrush |
| Scleria reticularis Michx. | Reticulated Nutrush |
| Scleria verticillata Muhl. ex Willd. | Whorled Nutrush |
| Sedum rosea (L.) Scop. | Roseroot Stonecrop |
| Senecio antennariifolius Britt. | Cat’s-Paw Ragwort |
| Shepherdia canadensis (L.) Nutt. | Canada Buffalo-Berry |
| Sida hermaphrodita (L.) Rusby | Sida |
| Sisyrinchium atlanticum Bickn. | Eastern Blue-Eyed Grass |
| Solidago arguta Ait. var. harrissii (Steele) Cronq. | Harris’ Goldenrod |
| Solidago curtissii Torr. & Gray | Curtis’ Goldenrod |
| Solidago erecta Pursh | Slender Goldenrod |
| Solidago spathulata DC. ssp. randii var. | Sticky Goldenrod |
| racemosa (Greene) Gleason | |
| 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. & Gray | Spring Ladies’-Tresses |
| Sporobolus clandestinus (Biehler) A. S. Hitchc. | Rough Dropseed |
| Sporobolus cryptandrus (Torr.) Gray | Sand Dropseed |
| Sporobolus heterolepis (Gray) Gray | Prairie Dropseed |
| Stachys nuttallii Shuttlw. ex Benth. | Nuttall’s Hedge-Nettle |
| Taenidia montana (Mackenzie) Cronq. (Gleason, H. A. and A. Cronquist, Manual of Vascular Plants of Northeastern United States and Adjacent Canada, 1991, Second Edition) | Mountain Pimpernel |
| Thalictrum coriaceum (Britt.) Small | Thick-Leaved Meadow-Rue |
| Tomanthera auriculata (Michx.) Raf. | Eared False-Foxglove |
| Trichostema setaceum Houtt. | Blue-Curls |
| Trifolium virginicum Small | Kate’s Mountain Clover |
| Triphora trianthophora (Sw.) Rydb. | Nodding Pogonia |
| Triplasis purpurea (Walt.) Chapman | Purple Sandgrass |
| Trollius laxus Salisb. ssp. laxus | Spreading Globe-Flower |
| Veronia glauca (L.) Willd. | Tawny Ironweed |
| Viburnum nudum L. | Possum Haw Viburnum |
| Viola brittoniana Pollard | Coast Violet |
| Viola pedatifida G. Don | Prairie Violet |
| Vitis novae-angliae Fern. | New England Grape |
The provisions of this § 45.12 adopted December 4, 1987, effective January 1, 1988, 17 Pa.B. 5027; amended June 18, 1993, effective June 19, 1993, 23 Pa.B. 2816. Immediately preceding text appears at serial pages (123449) to (123452).
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