Pennsylvania Code & Bulletin
COMMONWEALTH OF PENNSYLVANIA

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The Pennsylvania Code website reflects the Pennsylvania Code changes effective through 54 Pa.B. 5070 (August 3, 2024).

Pennsylvania Code



Subchapter B. CLASSIFIED PLANTS


Sec.


45.11.    Pennsylvania Extirpated.
45.12.    Pennsylvania Endangered.
45.13.    Pennsylvania Threatened.
45.14.    Pennsylvania Rare.
45.15.    Pennsylvania Vulnerable.
45.16.    [Reserved].
45.17.    [Reserved].
45.18.    [Reserved].
45.19.    [Reserved].
45.20.    Special Concern Population.
45.21.    Tentatively Undetermined.

Cross References

   This subchapter cited in 17 Pa. Code §  45.3 (relating to classified plant taxonomy).

§ 45.11. Pennsylvania Extirpated.

 Plant species classified as Pennsylvania Extirpated are as follows:

Scientific NameCommon Name
Acalypha deamii (Weath.) AhlesTwo-Seeded Copperleaf
Aeschynomene virginica (L.) Britton, Stearns & Poggenb.Sensitive Joint-Vetch
Agalinis decemloba (Greene) PennellBlue 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) SheldonCooper’s Milk-Vetch
Berberis canadensis P. Mill.American Barberry
Buchnera americana L.Bluehearts
Carex adusta BoottCrowded Sedge
Carex backii BoottRocky 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.) ReichardBlack Sedge
Carex sartwellii DeweySartwell’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.) SchönlandWater-Pigmyweed
Crotonopsis elliptica Willd.Elliptical Rushfoil
Cuscuta coryli Engelm.Hazel Dodder
Cynoglossum boreale FernaldNorthern Hound’s Tongue
Cyperus polystachyos Rottb.Many-Spiked Flatsedge
Cyperus retrorsus Chapm.Retrorse Flatsedge
Cypripedium candidum Muhl. ex Willd.Small White Lady’s-Slipper
Desmodium sessilifolium (Torr.) Torr. and A. GraySessile-Leaved Tick Trefoil
Dichanthelium leibergii (Vasey) FreckmannLeiberg’s Panic Grass
Dichanthelium spretum (Schult.) FreckmannEaton’s Witchgrass
Diphasiastrum sabinifolium (Willd.) Holub.Fir Clubmoss
Draba reptans (Lam.) FernaldCarolina Whitlow-Grass
Echinacea laevigata (C. L. Boynton & Beadle) S. F. BlakeSmooth 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 albumWhite Thoroughwort
Eupatorium leucolepis (DC) Torr. & A. GrayWhite-Bracted Thoroughwort
Euphorbia obtusata PurshBlunt-Leaved Spurge
Fimbristylis puberula (Michx.) VahlHairy Fimbry
Galactia regularis (L.) Britton, Stearns & Poggenb.Eastern Milk-Pea
Galactia volubilis (L.) BrittonDowny Milk-Pea
Gentiana catesbaei WalterElliott’s Gentian
Gentianopsis virgata (Raf.) HolubNarrow-Leaved Fringed Gentian
Gymnopogon ambiguus (Michx.) Britton, Stearns & Poggenb.Broad-Leaved Beardgrass
Helianthus angustifolius L.Swamp Sunflower
Hordeum pusillum Nutt. Á LöveLittle-Barley
Hottonia inflata ElliottAmerican Featherfoil
Hydrocotyle umbellata L.Many-Flowered Pennywort
Hypericum adpressum Raf. ex BartonCreeping St. John’s-Wort
Hypericum crux-andreae (L.) CrantzSt. Peter’s-Wort
Hypericum denticulatum WalterCoppery St. John’s-Wort
Ilex glabra (L.) A. GrayInkberry
Itea virginica L.Virginia-Willow
Juncus greenei Oakes & Tuck.Greene’s Rush
Koeleria macrantha (Ledeb.) SchultesJunegrass
Leiophyllum buxifolium (Berg.) ElliottSand-Myrtle
Lespedeza stuevei Nutt.Tall Bush-Clover
Limosella australis R. Br.Awl-Shaped Mudwort
Lobelia nuttallii Roem. & Schult.Nuttall’s Lobelia
Ludwigia sphaerocarpa ElliottSpherical-Fruited Seedbox
Lysimachia quadriflora SimsFour-Flowered Loosestrife
Micranthemum micranthemoides (Nutt.) Wettst.Nuttall’s Mud-Flower
Muhlenbergia capillaris (Lam.) Trin.Short Muhly
Onosmodium virginianum (L.) A. DC.Virginia False Gromwell
Ophioglossum vulgatum L. var. pycnostichum FernaldAdders 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 BalbisNorthern Pondweed
Potamogeton praelongus WulfenWhite-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. GrayBeak-Rush
Ruellia caroliniensis (Walter ex J. F. Gmel.) Steud.Carolina Petunia
Sabatia campanulata (L.) Torr.Slender Marsh-Pink
Sabatia stellaris PurshSea 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. BicknellSand Blue-Eyed Grass
Smilax pseudochina L.Long-Stalked Greenbrier
Sparganium natans L.Small Bur-Reed
Spiraea virginiana BrittonVirginia Spiraea
Spiranthes magnicamporum SheviakLadies’-Tresses
Trifolium reflexum L.Buffalo Clover
Triglochin palustris L.Marsh Arrowgrass
Utricularia fibrosa Walt.Fibrous Bladderwort
Utricularia resupinata B. D. Greene ex BigelowNortheastern Bladderwort
Utricularia subulata L.Slender Bladderwort

Authority

   The provisions of this §  45.11 amended under section 7 of the Wild Resource Conservation Act (32 P.S. §  5307); and sections 305(a)(9) and 313(g) of the Conservation and Natural Resources Act (71 P.S. § §  1340.305(a)(9) and 1340.313(g)).

Source

   The provisions of this §  45.11 adopted December 4, 1987, effective January 1, 1988, 17 Pa.B. 5027; amended June 18, 1993, effective June 19, 1993, 23 Pa.B. 2816; amended December 21, 2018, effective December 22, 2018, 48 Pa.B. 7757; amended September 22, 2023, effective September 23, 2023, 53 Pa.B. 5892. Immediately preceding text appears at serial pages (394737) to (394740).

§ 45.12. Pennsylvania Endangered.

 Plant species classified as Pennsylvania Endangered are as follows:

Scientific NameCommon Name
Aconitum reclinatum A. GrayWhite Monkshood
Acorus americanus (Raf.) Raf.Sweet Flag
Agalinis auriculata (Michx.) S. F. BlakeEared False Foxglove
Agalinis paupercula (A. Gray) BrittonSmall-Flowered False Foxglove
Aletris farinosa L.Colic-Root
Alisma triviale PurshBroad-Leaved Water-Plaintain
Alnus viridis (Vill.) DCMountain Alder
Amelanchier bartramiana (Tausch) M. Roem.Oblong-Fruited Serviceberry
Ammania coccinea Rottb.Scarlet Ammannia
Anemone cylindrica A. GrayLong-Headed Anemone
Arabis missouriensis GreeneMissouri Rockcress
Arethusa bulbosa L.Dragon’s-Mouth
Arnica acaulis (Walter) Britton, Stearns & Poggenb.Leopard’s-Bane
Arnoglossum reniforme (Hook.) H. E. Robins.Great Indian Plantain
Artemisia campestris L. ssp. caudata (Michx.) Hall & Clements.Beach Wormwood
Asclepias variegata L.White Milkweed
Asplenium bradleyi D. C. EatonBradley’s Spleenwort
Asplenium resiliens KunzeBlack-Stemmed Spleenwort
Astragalus canadensis L.Canadian Milk-Vetch
Bidens beckii (Torr. ex Spreng.) GreeneBeck’s Water-Marigold
Bidens bidentoides (Nutt.) BrittonSwamp Beggar-Ticks
Boltonia asteroides (L.) L’Hér.Aster-Like Boltonia
Camassia scilloides (Raf.) CoryWild Hyacinth
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 BrittonBicknell’s Sedge
Carex bullata Willd.Bull Sedge
Carex careyana DeweyCarey’s Sedge
Carex crinita Lam. var. brevicrinis FernaldShort-Hair Sedge
Carex eburnea BoottEbony Sedge
Carex formosa DeweyHandsome Sedge
Carex garberi FernaldElk Sedge
Carex geyeri BoottGeyer’s Sedge
Carex lupuliformis SartwellFalse Hop Sedge
Carex mitchelliana M. A. CurtisMitchell’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 roanensis F. J. Herm (Source: Flora of the Southeastern United States, Weakley 2020)Roan Mountain Sedge
Carex schweinitzii Schwein.Schweinitz’s Sedge
Carex sterilis Willd.Sterile Sedge
Carex typhina Michx.Cat-Tail Sedge
Carex viridula Michx.Green Sedge
Cerastium velutinum Raf. var. villossissimum (Pennell) J. K. MortonOctoraro Creek Chickweed
Chasmanthium laxum (L.) H. O. YatesSlender Wild-Oats
Chenopodium foggii WahlFogg’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
Corallorhiza wisteriana ConradSpring Coral-Root
Cryptogramma stelleri (Gmel.) PrantlSlender Rockbrake
Cymophyllus fraserianus (Ker Gawl.) Kartesz & GandhiFraser’s Sedge
Cyperus diandrus Torr.Umbrella Sedge
Cyperus houghtonii Torr.Houghton’s Flatsedge
Cyperus refractus Engelm.Reflexed 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
Cypripedium reginae WalterShow Lady’s-Slipper
Delphinium exaltatum AitonTall Larkspur
Dicentra eximia (Ker Gwal.) Torr.Wild Bleeding-Heart
Dichanthelium scoparium (Lam.) GouldVelvety Panic Grass
Dichanthelium xanthophysum (A. Gray) FreckmannSlender Panic Grass
Dodecatheon meadia L.Shooting-Star
Dryopteris campyloptera (Kunze) ClarksonMountain Wood Fern
Echinochloa walteri (Pursh) A. HellerWalter’s Barnyard-Grass
Eleocharis caribaea (Rottb.) S. F. BlakeCapitate Spike-Rush
Eleocharis compressa Sull.Flat-Stemmed Spike-Rush
Eleocharis elliptica KunthSlender Spike-Rush
Eleocharis obtusa (Willd.) Schult. var. peasei SvensonWright’s Spike-Rush
Eleocharis parvula (Roem. & Schult.) Link ex Buffon & Fingerh.Dwarf Spike-Rush
Eleocharis pauciflora (Lightf.) Link var. fernaldii SwensonFew-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) SvensonSlender Spike-Rush
Equisetum scirpoides Michx. (Source: Flora of North America)Dwarf Scouring-Rush
Equisetum variegatum Schleich.Variegated Scouring-Rush
Eriophorum gracile Koch ex RothSlender Cotton-Grass
Eriophorum tenellum Nutt.Rough Cotton-Grass
Euphorbia ipecacuanhae L.Wild Ipecac
Euphorbia purpurea (Raf.) FernaldGlade Spurge
Eurybia spectabilis (Aiton) NesomShowy Aster
Festuca paradoxa Desv.Cluster Fescue
Fraxinus profunda (Bush) BushPumpkin Ash
Fraxinus quadrangulata Michx. (Source: Flora of the Southeastern United States, Weakley 2020)Blue Ash
Galium labradoricum WiegandBog Bedstraw
Gaylussacia brachycera (Michx.) A. GrayBox Huckleberry
Gaylussacia dumosa (Andr.) Torr. & A. GrayDwarf Huckleberry
Geranium bicknellii BrittonCranesbill
Glyceria obtusa (Muhl.) Trin.Blunt Manna-Grass
Goodyera tesselata Lodd.Checkered Rattlesnake-Plantain
Gratiola aurea Muhl. ex PurshGolden Hedge-Hyssop
Helianthemum bicknellii FernaldBicknell’s Hoary Rockrose
Heteranthera multiflora (Griseb.) Horn.Multi-Flowered Mud-Plantain
Hieracium traillii GreeneMaryland Hawkweed
Hierochloe hirta (Schrank) Borb[aacute]s (Source: Flora of the Southeastern United States, Weakley 2020)Common Northern Sweet Grass
Hierochloe odorata (L.) Beauv.Vanilla Sweet-Grass
Huperzia porophila (F. E. Lloyd & Underw.) HolubSandstone-Loving Firmoss
Hydrophyllum macrophyllum Nutt.Large-Leaved Water-Leaf
Hypericum gymnanthum Engelm. & A. GrayClasping-Leaved St. John’s-Wort
Iodanthus pinnatifidus (Michx.) Steud.Purple-Rocket
Iris cristata Sol. ex AitonDwarf Crested Iris
Iris prismatica PurshSlender Blue Flag
Iris verna L.Dwarf Iris
Isotria medeoloides (Pursh) Raf.Small-Whorled Pogonia
Juncus brachycarpus Engelm.Short-Fruited Rush
Juncus dichotomus ElliottForked Rush
Juncus militaris BigelowBayonet Rush
Juncus scirpoides Lam.Scirpus-Like Rush
Lespedeza angustifolia (Pursh) ElliottNarrow-Leaved Bush-Clover
Ligusticum canadense (L.) BrittonNondo Lovage
Linum intercursum E. P. BicknellSandplain Wild Flax
Linum sulcatum RiddellGrooved Yellow Flax
Lipocarpha micrantha (Vahl) G. C. TuckerCommon Hemicarpha
Listera australis Lindl.Southern Twayblade
Listera cordata (L.) R. Br.Heartleaf Twayblade
Listera smallii WiegandKidney-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 WalterUpright Primrose-Willow
Ludwigia polycarpa Short & PeterFalse Loosestrife Seedbox
Lycopodiella alopecuroides (L.) CranfillFoxtail Bog Clubmoss
Lycopodiella margueritae J. G. Bruce, W. H. Wagner & BeitelMarguerite’s Clubmoss
Lycopus rubellus Moench.Taper-Leaved Bugle-Weed
Lyonia mariana (L.) D. DonStaggerbush
Lysimachia hybrida Michx.Lance-Leaved Loosestrife
Lythrum alatum PurshWinged Loosestrife
Malaxis bayardii FernaldAdder’s-Mouth
Marshallia pulchra W. M. Knapp, D. B. Poind. & Weakley (Source: Flora of Southeastern United States, Weakley 2020)Beautiful Barbara’s Buttons
Matelea obliqua (Jacq.) WoodsonOblique Milkvine
Mitella nuda L.Naked Bishop’s-Cap
Monarda punctata L.Spotted Bee-Balm
Montia chamissoi (Ledeb. ex Spreng.) GreeneChamisso’s Miner’s-Lettuce
Muhlenbergia uniflora (Muhl.) Fern.Fall Dropseed Muhly
Myriophyllum farwellii MorongFarwell’s Water-Milfoil
Myriophyllum sibiricum KomarovNorthern Water-Milfoil
Myriophyllum verticillatum L.Whorled Water-Milfoil
Najas marina L.Holly-Leaved Naiad
Oclemena nemoralis (Aiton) E. GreeneLeafy Bog Aster
Onosmodium molle Michx. var. hispidissimum (Mack.) CronquistFalse Gromwell
Ophioglossum engelmannii PrantlLimestone Adder’s-Tongue
Packera antennariifolia (Britton) W. A. Weber Á & LöveCat’s-Paw Ragwort
Panicum amarum Elliott var. amarulum (A. Hitchc. & Chase) P. G. PalmerBeachgrass
Parnassia glauca Raf.Grass-of-Parnassus
Paxistima canbyi A. GrayCanby’s Mountain-Lover
Persicaria careyi (Olney) GreeneCarey’s Smartweed
Persicaria setacea (Baldwin) SmallSwamp Smartweed
Phlox ovata L.Mountain Phlox
Phlox subulata L. ssp. brittonii (Small) WherryMoss Pink
Piptatherum pungens (Torr. ex Spreng.) DornSlender Mountain Ricegrass
Platanthera aquilonis Sheviak, Lindleyana (Source: Flora of North America)Northern Green Orchid
Platanthera dilatata (Pursh) Lindl. ex BeckTall White Bog-Orchid
Platanthera huronensis (Nutt.) Lindl.Huron Green Orchid
Poa autumnalis Muhl. ex ElliottAutumn Bluegrass
Polemonium van-bruntiae BrittonJacob’s-Ladder
Polygala cruciata L.Cross-Leaved Milkwort
Polygala curtissii A. GrayCurtis’ Milkwort
Polygala incarnata L.Pink Milkwort
Polystichum braunii (Spenn.) FeeBraun’s Holly Fern
Populus balsamifera L.Balsam Poplar
Potamogeton friesii Rupr.Fries’ Pondweed
Potamogeton gramineus L.Grassy Pondweed
Potamogeton hillii MorongHill’s Pondweed
Potamogeton obtusifolius Mert. & KochBlunt-Leaved Pondweed
Potamogeton pulcher Tuck.Spotted Pondweed
Potamogeton strictifolius A. Benn.Narrow-Leaved Pondweed
Potamogeton tennesseensis FernaldTennessee Pondweed
Potamogeton vaseyi J. W. RobbinsVasey’s Pondweed
Potentilla fruticosa L.Shrubby Cinquefoil
Potentilla paradoxa Nutt.Bushy Cinquefoil
Potentilla tridentata AitonThree-Toothed Cinquefoil
Prunus maritima MarshallBeach 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 BuckleyShumard Oak
Ranunculus fascicularis Muhl. ex J. M. BigelowTufted Buttercup
Ratibida pinnata (Vent.) BarnhartGray-Headed Prairie Coneflower
Rhamnus lanceolata PurshLanceolate Buckthorn
Rhexia mariana L.Maryland Meadow-Beauty
Rhododendron atlanticum (Ashe) RehderDwarf Azalea
Rhynchospora capillacea Torr.Capillary Beak-Rush
Ribes missouriense Nutt. ex Torr. & A. GrayMissouri Gooseberry
Rubus cuneifolius PurshSand Blackberry
Ruellia humilis Nutt.Fringed-Leaved Petunia
Sagittaria calycina Engelm.Long-Lobed Arrowhead
Salix candida Fl[uuml ]ggé ex Willd.Hoary Willow
Scheuchzeria palustris L.Pod-Grass
Schoenoplectus acutus (Muhl. ex Bigel.) Löve & LöveHard-Stemmed Bulrush
Schoenoplectus smithii (A. Gray) SojakSmith’s Bulrush
Schoenoplectus torreyi (Olney) PallaTorrey’s Bulrush
Scirpus ancistrochaetus SchuylerNortheastern Bulrush
Scleria minor (Britton) StoneSmall 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.) RusbyVirginia Mallow
Sisyrinchium atlanticum E. P. BicknellEastern Blue-Eyed-Grass
Solidago arguta Aiton var. harrisii (E. S. Steele) CronquistHarris’ Goldenrod
Solidago curtissii Torr. & A. GrayCurtis’ Goldenrod
Solidago erecta Banks ex PurshSlender Goldenrod
Solidago simplex Kunth ssp. randii (Porter) Ringius var. racemosa (Greene) RingiusSticky Goldenrod
Sorbus decora (Sarg.) Schneid.Showy Mountain-Ash
Sparganium androcladum (Engelm.) MorongBranching Bur-Reed
Spiraea corymbosa Rafinesque (Source: Flora of the Southeastern United States, Weakley 2020)Dwarf Spiraea
Spiranthes casei Catling & CruiseCase’s Ladies’-Tresses
Spiranthes ovalis Lindl.October Ladies’-Tresses
Spiranthes romanzoffiana Cham.Hooded Ladies’-Tresses
Spiranthes vernalis Engelm. & A. GraySpring Ladies’-Tresses
Sporobolus clandestinus (Biehler) A. Hitchc.Rough Dropseed
Sporobolus cryptandrus (Torr.) A. GraySand Dropseed
Sporobolus heterolepis (A. Gray) A. GrayPrairie Dropseed
Stachys nuttallii Shuttlew. ex Benth.Nuttall’s Hedge-Nettle
Swertia caroliniensis (Walter) KuntzeAmerican Columbo
Symphyotrichum boreale (Torr. & Gray) Á Löve & D. LöveNorthern Bog Aster
Taenidia montana (Mack.) CronquistMountain Pimpernel
Trichostema setaceum Houtt.Narrow-Leaved Blue-Curls
Trifolium stoloniferum Eaton (Source: Flora of the Southeastern United States, Weakley 2020)Running Buffalo Clover
Trifolium virginicum SmallKate’s-Mountain Clover
Triphora trianthophora (Swartz) Rydb.Nodding Pogonia
Triplasis purpurea (Walter) Chapm.Purple Sandgrass
Trollius laxus Salisb.Spreading Globe-Flower
Veronia glauca (L.) Willd.Tawny Ironweed
Viburnum nudum L.Possum Haw Viburnum
Viola brittoniana PollardCoast Violet
Viola glaberrima (Ging.) House (Source: Flora of the Southeastern United States, Weakley 2020)Wedge-Leaved Violet
Vitis rupestris ScheeleSand Grape
Zigadenus glaucus (Nutt.) Nutt.White Camas

Authority

   The provisions of this §  45.12 amended under section 7 of the Wild Resource Conservation Act (32 P.S. §  5307); and sections 305(a)(9) and 313(g) of the Conservation and Natural Resources Act (71 P.S. § §  1340.305(a)(9) and 1340.313(g)).

Source

   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; amended December 21, 2018, effective December 22, 2018, 48 Pa.B. 7757; amended September 22, 2023, effective September 23, 2023, 53 Pa.B. 5892. Immediately preceding text appears at serial pages (394741) to (394748).

Cross References

   This section cited in 7 Pa. Code §  128.102 (relating to protected designated areas).

§ 45.13. Pennsylvania Threatened.

 Plant species classified as Pennsylvania Threatened are as follows:

Scientific NameCommon Name
Aconitum uncinatum L.Blue Monkshood
Ageratina aromatica (L.) SpachSmall White-Snakeroot
Ammophila breviligulata FernaldAmerican Beachgrass
Arabis patens Sull.Spreading Rockcress
Arceuthobium pusillum PeckDwarf Mistletoe
Aristida purpurascens Poir.Arrow-Feather Three-Awned Grass
Asclepias verticillata L.Whorled Milkweed
Baptisia australis (L.) R. Br.Blue False Indigo
Bouteloua curtipendula (Michx.) Torr.Tall Gramma
Bromus kalmii A. GrayKalm’s Brome
Carex alata Torr.Broad-Winged Sedge
Carex aquatilis Wahlenb.Water Sedge
Carex collinsii Nutt.Collins’ Sedge
Carex cryptolepis Mack.Northeastern Sedge
Carex diandra SchrankLesser Panicled Sedge
Carex flava L.Yellow Sedge
Carex longii Mack.Long’s Sedge
Carex oligosperma Michx.Few-Seeded Sedge
Carex prairea DeweyPrairie Sedge
Carex tetanica SchkuhrWood’s Sedge
Carex wiegandii Mack.Wiegand’s Sedge
Castilleja coccinea (L.) Spreng.Eastern Paintbrush
Chamaesyce polygonifolia (L.) SmallSeaside Spurge
Chrysopsis mariana (L.) ElliottMaryland Golden-Aster
Dodecatheon amethystinum (Fassett) FassettJeweled Shooting-Star
Eleocharis intermedia (Muhl.) Schult.Matted Spike-Rush
Eleocharis robbinsii OakesRobbins’ Spike-Rush
Ellisia nyctelea L.Ellisia
Erigenia bulbosa (Michx.) Nutt.Harbinger-of-Spring
Eriophorum viridicarinatum (Engelm.) FernaldThin-Leaved Cottongrass
Euthamia caroliniana (L.) Greene ex Porter & BrittonGrass-Leaved Goldenrod
Fimbristylis annua (All.) Roem. & Schult.Annual Fimbry
Galium latifolium Michx. Purple Bedstraw
Hypericum densiflorum PurshBushy St. John’s-Wort
Hypericum majus (A. Gray) BrittonCanadian St. John’s-Wort
Ilex opaca AitonAmerican 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 CovilleTorrey’s Rush
Lathyrus japonicus Willd.Beach Pea
Lathyrus ochroleucus Hook.Wild Pea
Linnaea borealis L.Twinflower
Lobelia dortmanna L.Water Lobelia
Lycopodiella appressa (Chapm.) CranfillAppressed 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 BigelowSlender Water-Milfoil
Najas gracillima (A. Braun) MagnusBushy Naiad
Nymphoides cordata (Elliott) FernaldFloating-Heart
Oenothera argillicola Mack.Shale-Barren Evening-Primrose
Panicum tuckermanii FernaldTuckerman’s Panic-Grass
Passiflora lutea L.Passion-Flower
Phemeranthus teretifolius (Pursh) Raf.Round-Leaved Fameflower
Platanthera ciliaris (L.) Lindl.Yellow Fringed Orchid
Platanthera peramoena (A. Gray) A. GrayPurple Fringeless Orchid
Poa paludigena Fernald & WiegandBog Bluegrass
Potamogeton confervoides Reichenb.Tuckerman’s Pondweed
Potamogeton richardsonii (Benn.) Rydb.Red-Head Pondweed
Ptelea trifoliata L.Hoptree
Ranunculus ambigens S. WatsonWater-Plantain Spearwort
Ranunculus longirostris GodronEastern White Water-Crowfoot
Ribes triste PallasWild Red Currant
Ruellia strepens L.Limestone Petunia
Salix serissima (Bailey) FernaldAutumn Willow
Scirpus pedicellatus FernaldStalked Bulrush
Scleria pauciflora Muhl. ex Willd.Few-Flowered Nutrush
Solidago roanensis PorterMountain Goldenrod
Solidago uliginosa Nutt.Bog Goldenrod
Stellaria borealis BigelowNorthern Stitchwort
Streptopus amplexifolius (L.) DCTwisted-Stalk
Symphyotrichum depauperatum (Fernald) NesomSerpentine Aster
Symphyotrichum novi-belgii (L.) Nesom var. novi-belgiiNew York Aster
Thalictrum coriaceum (Britton) SmallThick-Leaved Meadow-Rue
Utricularia intermedia HayneFlat-Leaved Bladderwort
Viola appalachiensis L. K. HenryAppalachian Blue Violet
Vittaria appalachiana Farrar & MickelAppalachian Grass-Fern

Authority

   The provisions of this §  45.13 amended under section 7 of the Wild Resource Conservation Act (32 P.S. §  5307); and sections 305(a)(9) and 313(g) of the Conservation and Natural Resources Act (71 P.S. § §  1340.305(a)(9) and 1340.313(g)).

Source

   The provisions of this §  45.13 adopted December 4, 1987, effective January 1, 1988, 17 Pa.B. 5027; amended June 18, 1993, effective June 19, 1993, 23 Pa.B. 2816; amended December 21, 2018, effective December 22, 2018, 48 Pa.B. 7757; amended September 22, 2023, effective September 23, 2023, 53 Pa.B. 5892. Immediately preceding text appears at serial pages (394748) to (394751).

Cross References

   This section cited in 7 Pa. Code §  128.102 (relating to protected designated areas).

§ 45.14. Pennsylvania Rare.

 Plant species classified as Pennsylvania Rare are as follows:

Scientific NameCommon Name
Actaea podocarpa DCMountain Bugbane
Amaranthus cannabinus (L.) SauerWater-Hemp Ragweed
Andromeda polifolia L.Bog-Rosemary
Andropogon gyrans AsheElliott’s Beardgrass
Asplenium pinnatifidum Nutt.Lobed Spleenwort
Bartonia paniculata ssp. paniculata (Michx.) Muhl.Screw-Stem
Cakile edentula (Bigelow) Hook.American Sea-Rocket
Carex buxbaumii Wahlenb.Brown Sedge
Carex disperma DeweySoft-Leaved Sedge
Carex lasiocarpa Ehrh.Many-Fruited Sedge
Carex paupercula Michx.Bog Sedge
Cyperus engelmannii Steud.Engelmann’s Flatsedge
Cyperus schweinitzii Torr.Schweinitz’s Flatsedge
Dichanthelium commonsianum (Ashe) Freckmann var. euchlamydeum (Shinners) PohlCloaked Panic Grass
Epilobium strictum Muhl.Downy Willow-Herb
Erythronium albidum Nutt.White Trout-Lily
Gaultheria hispidula (L.) Muhl. ex BigelowCreeping Snowberry
Juncus biflorus ElliottGrass-Leaved Rush
Juncus filiformis L.Thread Rush
Ledum groenlandicum OederCommon Labrador-Tea
Lorinseria areolata (Linnaeus) C. Presl. (Source: Flora of the Southeastern United States, Weakley 2020)Netted Chain Fern
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 LöveAppalachian Groundsel
Potamogeton robbinsii Oakes Flat-Leaved Pondweed
Potamogeton zosteriformis FernaldFlat-Stemmed Pondweed
Potentilla anserina L.Silverweed
Prunus pumila L. var. pumilaSand Cherry
Pyrularia pubera Michx.Buffalo-Nut
Ranunculus micranthus (Gray) Nutt. ex Torr. & GraySmall-Flowered Crowfoot
Rotala ramosior (L.) KoehneToothcup
Sagittaria subulata (L.) L. Buch.Subulate Arrowhead
Schizachyrium scoparium (Michx.) Nash var. littorale (Nash) GouldSeaside Bluestem
Schoenoplectus fluviatilis (Torr.) StrongRiver Bulrush
Sedum telephioides Michx.Allegheny Stonecrop
Trillium nivale RiddellSnow Trillium
Wolffiella gladiata (Hegelm.) Hegelm.Bog-Mat
Xyris montana Ries.Yellow Eyed Grass
Zizania aquatica L.Indian Wild Rice

Authority

   The provisions of this §  45.14 amended under section 7 of the Wild Resource Conservation Act (32 P.S. §  5307); and sections 305(a)(9) and 313(g) of the Conservation and Natural Resources Act (71 P.S. § §  1340.305(a)(9) and 1340.313(g)).

Source

   The provisions of this §  45.14 adopted December 4, 1987, effective January 1, 1988, 17 Pa.B. 5027; amended June 18, 1993, effective June 19, 1993, 23 Pa.B. 2816; amended December 21, 2018, effective December 22, 2018, 48 Pa.B. 7757; amended September 22, 2023, effective September 23, 2023, 53 Pa.B. 5892. Immediately preceding text appears at serial pages (394751) to (394752).

§ 45.15. Pennsylvania Vulnerable.

 Plant species classified as Pennsylvania Vulnerable are as follows:

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

Authority

   The provisions of this §  45.15 amended under section 7 of the Wild Resource Conservation Act (32 P.S. §  5307); and sections 305(a)(9) and 313(g) of the Conservation and Natural Resources Act (71 P.S. § §  1340.305(a)(9) and 1340.313(g)).

Source

   The provisions of this §  45.15 amended December 21, 2018, effective December 22, 2018, 48 Pa.B. 7757. Immediately preceding text appears at serial page (353992).

§ 45.16. [Reserved].


Source

   The provisions of this §  45.16 adopted December 4, 1987, effective January 1, 1988, 17 Pa.B. 5027; reserved June 18, 1993, effective June 19, 1993, 23 Pa.B. 2816. Immediately preceding text appears at serial page (123456).

§ 45.17. [Reserved].


Source

   The provisions of this §  45.17 adopted December 4, 1987, effective January 1, 1988, 17 Pa.B. 5027; reserved June 18, 1993, effective June 19, 1993, 23 Pa.B. 2816. Immediately preceding text appears at serial page (123456).

§ 45.18. [Reserved].


Source

   The provisions of this §  45.18 adopted December 4, 1987, effective January 1, 1988, 17 Pa.B. 5027; reserved June 18, 1993, effective June 19, 1993, 23 Pa.B. 2816. Immediately preceding text appears at serial page (123456).

§ 45.19. [Reserved].


Source

   The provisions of this §  45.19 adopted December 4, 1987, effective January 1, 1988, 17 Pa.B. 5027; reserved June 18, 1993, effective June 19, 1993, 23 Pa.B. 2816. Immediately preceding text appears at serial page (123456).

§ 45.20. Special Concern Population.

 As of January 1, 1988, no plant species have been listed solely within the classification of Special Concern Population.

Source

   The provisions of this §  45.20 adopted December 4, 1987, effective January 1, 1988, 17 Pa.B. 5027.

§ 45.21. Tentatively Undetermined.

 Plant species classified as Tentatively Undetermined are as follows:

Scientific NameCommon Name
Agalinis obtusifolia Raf.False-Foxglove
Amelanchier humilis WiegandLow Serviceberry
Amelanchier obovalis (Michx.) AsheCoastal 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. GrayPoverty Grass
Aristida longespica Poir. var. geniculata (Raf.) FernaldLong-Spike Three-Awned Grass
Aristolochia macrophylla Lam.Pipevine
Carex crawfordii FernaldCrawford’s Sedge
Carex haydenii DeweyCloud Sedge
Carex limosa L.Mud Sedge
Carex meadii DeweyMead’s Sedge
Chasmanthium latifolium (Michx.) H. O. YatesWild-Oats
Chenopodium capitatum (L.) Asch.Strawberry Goosefoot
Crataegus brainerdii Sarg.Brainerd’s Hawthorne
Crataegus mollis (Torr. & A. Gray) ScheeleDowny Hawthorne
Cuscuta cephalanthi Engelm.Buttonbush Dodder
Cuscuta polygonorum Engelm.Smartweed Dodder
Cyperus tenuifolius (Steud.) DandyThin-Leaved Flatsedge
Cystopteris laurentiana (Weath.) BlasdellLaurentian Bladder-Fern
Desmodium glabellum (Michx.) KuntzeTall Tick-Trefoil
Desmodium nuttallii (Schindl.) Schub.Nuttall’s Tick-Trefoil
Dichanthelium annulum (Ashe) LeBlondAnnulus Panic Grass
Dichanthelium boreale (Nash) FreckmannNorthern Panic Grass
Dichanthelium commonsianum (Ashe) FreckmannCloaked Panic Grass
Dichanthelium lucidum (Ashe) LeBlondShining Panic Grass
Dichanthelium villosissimum (Nash) FreckmannLong-Haired Panic Grass
Dichanthelium yadkinense (Ashe) Mohlenbr.Yadkin River Panic Grass
Dracocephalum parviflorum Nutt.American Dragonhead
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
Gymnocarpium appalachianum K. M. Pryer & HauflerAppalachian Oak Fern
Houstonia purpurea L. var. purpureaPurple Bluets
Hypericum drummondii (Grev. & Hook) Torr. & A. GrayNits-and-Lice
Lathyrus palustris L.Vetchling
Lemna turionifera LandoltWinter Duckweed
Leucothoe racemosa (L.) A. GraySwamp Dog-Hobble
Liatris scariosa (L.) Willd.Northern Blazing-Star
Lonicera hirsuta EatonHairy Honeysuckle
Luzula bulbosa (A. W. Wood) Rybd.Wood-Rush
Malaxis monophyllos (L.) Swartz var. brachypoda (A. Gray) F. Morris & E. A. EamesWhite Adder’s-Mouth
Meehania cordata (Nutt.) BrittonHeart-Leafed Meehania
Muhlenbergia cuspidata (Torr.) Rydb.Sharp-Pointed Muhly
Nuphar microphylla (Pers.) FernaldSmall Yellow Pond-Lily
Oenothera pilosella Raf.Evening-Primrose
Oxypolis rigidior (L.) Raf.Stiff Cowbane
Packera plattensis (Nutt.) W. A. Weber & Á LövePrairie Ragwort
Panicum flexile (Gatt.) Scribn.Wiry Witchgrass
Panicum longifolium Torr.Long-Leaved Panic Grass
Paronychia fastigiata (Raf.) Fernald var. nuttallii (Small) FernaldWhitlow Wort
Parthenium intergrifolium L.American Fever-Few
Paspalum floridanum (Michx.) var. glabratum Engelm. ex VaseyFlorida Beadgrass
Paspalum laeve (Michx.) var. pilosum Scribn.Field Beadgrass
Paspalum setaceum Michx.Slender Beadgrass
Phlox pilosa L.Downy Phlox
Phyla lanceolata (Michx.) GreeneLance Fog-Fruit
Physalis virginiana Mill.Virginia Ground-Cherry
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 WalterRacemed 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. JohnSlender Pondweed
Potamogeton oakesianus J. W. RobbinsOakes’ 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’ HérAlder-Leaved Buckthorn
Rhynchospora recognita (Gale) KralSmall Globe Beak-Rush
Ribes lacustre (Pers.) Poir.Swamp Currant
Rosa virginiana P. Mill. Virginia Rose
Rubus setosus BigelowSmall Bristleberry
Rumex hastatulus Baldwin ex ElliottHeart Sorrell
Samolus parviflorus Raf.Pineland Pimpernel
Saxifraga micranthidifolia (Haw.) Steud.Lettuce Saxifrage
Scleria triglomerata Michx.Whip Nut-Rush
Scutellaria saxatilis RiddellRock Skullcap
Senna marilandica (L.) LinkWild 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.) NesomBushy Aster
Symphyotrichum ericoides (L.) NesomWhite 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 MarshallHighbush-Cranberry
Viola renifolia A. GrayKidney-Leaved Violet
Vitis cinerea (Englem. in A. Gray) Englem. ex Millardet var. baileyana (Munson) ComeauxPossum-Grape
Wolffia borealis (Engelm.) LandoltDotted Dotted Watermeal

Authority

   The provisions of this §  45.21 amended under section 7 of the Wild Resource Conservation Act (32 P.S. §  5307); and sections 305(a)(9) and 313(g) of the Conservation and Natural Resources Act (71 P.S. § §  1340.305(a)(9) and 1340.313(g)).

Source

   The provisions of this §  45.21 adopted December 4, 1987, effective January 1, 1988, 17 Pa.B. 5027; amended June 18, 1993, effective June 19, 1993, 23 Pa.B. 2816; amended December 21, 2018, effective December 22, 2018, 48 Pa.B. 7757; amended September 22, 2023, effective September 23, 2023, 53 Pa.B. 5892. Immediately preceding text appears at serial pages (394753) to (394758).



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