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COMMONWEALTH OF PENNSYLVANIA

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PA Bulletin, Doc. No. 22-1291a

[52 Pa.B. 5476]
[Saturday, August 27, 2022]

[Continued from previous Web Page]

Annex A

TITLE 17. CONSERVATION AND NATURAL RESOURCES

PART I. DEPARTMENT OF CONSERVATION AND NATURAL RESOURCES

Subpart D. RESOURCE CONSERVATION

CHAPTER 45. CONSERVATION OF PENNSYLVANIA NATIVE WILD PLANTS

Subchapter B. CLASSIFIED PLANTS

§ 45.11. Pennsylvania Extirpated.

 Plant species classified as Pennsylvania Extirpated are as follows:

Scientific NameCommon Name
Acalypha deamii (Weath.) Ahles Two-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 alopecoidea TuckermanFoxtail 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
[Distichlis spicata (L.) GreeneSea-Shore Salt-Grass]
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 Löve Little-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
[Hypericum gymnanthum Engelm. & A. GrayClasping-Leaved 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
[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 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. 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
Utricularia subulata L. Slender Bladderwort

§ 45.12. Pennsylvania Endangered.

 Plant species classified as Pennsylvania Endangered are as follows:

Scientific NameCommon 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
Aletris farinosa L. Colic-Root
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
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. Eaton Bradley's Spleenwort
Asplenium resiliens Kunze Black-Stemmed Spleenwort
Astragalus canadensis L. Canadian Milk-vetch
Bidens beckii (Torr. ex Spreng.) Greene Beck's Water-Marigold
Bidens bidentoides (Nutt.) Britton Swamp Beggar-Ticks
Boltonia asteroides (L.) L'Hér.Aster-Like Boltonia
Camassia scilloides (Raf.) Cory Wild 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 Britton Bicknell's Sedge
Carex bullata Willd. Bull Sedge
Carex careyana Dewey Carey's Sedge
[Carex collinsii Nutt. Collins' 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 lupuliformis Sartwell False Hop 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 roanensis
F. J. Herm (Source: Flora of 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. 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
Corallorhiza wisteriana ConradSpring Coral-Root
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 Chapm.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
Cypripedium reginae WalterShow Lady's-Slipper
Delphinium exaltatum Aiton Tall Larkspur
[Desmodium humifusum (Muhl.) BeckTrailing Tick-Trefoil
Diarrhena obovata (Gleason) BradenburgObovate 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
Fraxinus quadrangulata Michx. (Source: Flora of Southeastern United States, Weakley 2020)Blue Ash
Galium labradoricum Wiegand Bog Bedstraw
Gaylussacia brachycera (Michx.) A. GrayBox Huckleberry
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]
Gratiola aurea Muhl. ex PurshGolden Hedge-Hyssop
Helianthemum bicknellii Fernald Bicknell's Hoary Rockrose
Heteranthera multiflora (Griseb.) Horn. Multi-Flowered Mud-Plantain
Hieracium traillii Greene Maryland Hawkweed
Hierochloe hirta (Schrank) Borbás (Source: Flora of Southeastern United States, Weakley 2020)Common Northern Sweet Grass
Hierochloe odorata (L.) Beauv. Vanilla Sweet-Grass
Huperzia porophila
(F. E. Lloyd & Underw.) Holub
Sandstone-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 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
Lysimachia hybrida Michx.Lance-Leaved Loosestrife
Lythrum alatum PurshWinged Loosestrife
Malaxis bayardii Fernald Adder's-Mouth
[Marshallia grandiflora Beadle &
F. E. Boynton
Large-flowered Marshallia]
Marshallia pulchra
W. M. Knapp, D. B. Poind. & Weakley (Source: Flora of Southeastern United States, Weakley 2020)
Beautiful Barbara's Buttons
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
Salix candida Flüggé ex Willd. Hoary Willow
Scheuchzeria palustris L. Pod-Grass
Schoenoplectus acutus (Muhl. ex Bigel.) Löve & LöveHard-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
Spiraea corymbosa Rafinesque (Source: Flora of Southeastern United States, Weakley 2020) Dwarf Spiraea
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 (Britton) SmallThick-Leaved Meadow-Rue]
Trichostema setaceum Houtt. Narrow-Leaved Blue-Curls
Trifolium stoloniferum Eaton (Source: Flora of the Southeastern United States, Weakley 2020)Running Buffalo Clover
Trifolium virginicum Small Kate'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 Pollard Coast Violet
[Vitis novae-angliae FernaldNew England Grape]
Viola glaberrima (Ging.) House (Source: Flora of Southeastern United States, Weakley 2020)Wedge-leaved violet
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 NameCommon Name
Aconitum uncinatum L.Blue Monkshood
[Actaea podocarpa DC American Bugbane]
Ageratina aromatica (L.) SpachSmall White-Snakeroot
Ammophila breviligulata FernaldAmerican Beachgrass
Arabis patens Sull. Spreading Rockcress
Arceuthobium pusillum Peck Dwarf Mistletoe
Aristida purpurascens Poir. Arrow-Feather Three-Awned Grass
[Asplenium bradleyi
D. C. Eaton
Bradley's Spleenwort]
Asclepias verticillata L. Whorled milkweed
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]
Bromus kalmii A. Gray Kalm'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 Schrank Lesser Panicled Sedge
Carex flava L. Yellow Sedge
Carex longii Mack. Long's 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
Castilleja coccinea (L.) Spreng. Eastern Paintbrush
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]
Galium latifolium Michx. Purple Bedstraw
Hypericum densiflorum Pursh Bushy St. John's-Wort
Hypericum majus (A. Gray) Britton Canadian 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 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
Passiflora lutea L. Passion-Flower
Phemeranthus teretifolius (Pursh) Raf. Round-Leaved Fameflower
Platanthera ciliaris (L.) Lindl. Yellow Fringed Orchid
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 ambigens
S. Watson
Water-Plantain Spearwort
Ranunculus longirostris Godron Eastern White Water-Crowfoot
Ribes triste Pallas Wild Red Currant
Ruellia strepens L. Limestone Petunia
[Salix candida Flüggé ex Willd. Hoary Willow]
Salix serissima (Bailey) Fernald Autumn Willow
Scirpus pedicellatus Fernald Stalked Bulrush
Scleria pauciflora Muhl. ex Willd. Few-Flowered Nutrush
Solidago roanensis Porter Mountain Goldenrod
Solidago uliginosa Nutt. Bog Goldenrod
[Spiraea betulifolia Pallas var. corymbosa (Raf.) Maxim. Dwarf Spiraea]
Stellaria borealis Bigelow Northern Stitchwort
Streptopus amplexifolius (L.) DC Twisted-Stalk
Symphyotrichum depauperatum (Fernald) Nesom Serpentine Aster
Symphyotrichum novi-belgii (L.) Nesom var. novi-belgii New York Aster
Thalictrum coriaceum (Britton) Small Thick-Leaved Meadow-Rue
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 NameCommon Name
Actaea podocarpa DC Mountain Bugbane
Amaranthus cannabinus (L.) Sauer Water-Hemp Ragweed
Andromeda polifolia L. Bog-Rosemary
[Aplectrum hyemale (Muhl. ex Willd.) Nutt. Puttyroot
Baccharis halimifolia L. Eastern Baccharis]
Andropogon gyrans Ashe Elliott'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 Dewey Soft-Leaved Sedge
Carex lasiocarpa Ehrh. Many-Fruited Sedge
[Collinsia verna Nutt. Spring Blue-Eyed Mary]
Carex paupercula Michx. Bog Sedge
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
Erythronium albidum Nutt. White Trout-Lily
Gaultheria hispidula (L.) Muhl. ex Bigelow Creeping Snowberry
Juncus biflorus Elliott Grass-Leaved Rush
Juncus filiformis L. Thread Rush
Ledum groenlandicum Oeder Common 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 Löve Appalachian Groundsel
Potamogeton robbinsii OakesFlat-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

§ 45.21. Tentatively Undetermined.

 Plant species classified as Tentatively Undetermined are as follows:

Scientific NameCommon 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 LövePrairie 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 Watermeal
[Pa.B. Doc. No. 22-1291. Filed for public inspection August 26, 2022, 9:00 a.m.]



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