Appendix A1. Known or Suspected Plant Species on Patuxent Research Refuge Appendix A1. Suspected or Known Plant Species on Patuxent Research Refuge Table A1-1. Suspected or Known Plant Species on Patuxent Research Refuge Common Name Scientific Name Global Natural Heritage Rank Heritage Natural Global Rank Heritage Natural State Status E T & State Status & TE Federal LYCOPDIALES Lycopodiaceae (club mosses, club-moss family) Christmas green Diphasiastrum complanatum Common club moss Lycopodium clavatum Deeproot clubmoss Diphasiastrum tristachyum G5 S3 Rare clubmoss Dendrolycopodium obscurum Inundated clubmoss Lycopodiella inundata G5 S2 Huperziaceae Shining clubmoss Huperzia lucidula SELAGINELLALES Selaginellaceae (selaginella) Meadow spike-moss Selaginella apoda ISOËTALES Isoëtaceae (quillworts) Appalachian quillwort Isoëtes engelmannii G4 S3 OPHIOGLOSSALES Ophioglossaceae (adder's tongue) Southern adder's-tongue Ophioglossum vulgatum Bortychiaceae Cut-leaf grape fern Botrychium dissectum Rattlesnake fern Botrypus virginianus EQUISETALES Equisetaceae (horsetails) Field horsetail Equisetum arvense OSMUNDALES Osmundaceae (royal fern) A1-1 Patuxent Research Refuge Draft CCP/EA Common Name Scientific Name Global Natural Heritage Rank Heritage Natural Global Rank Heritage Natural State Status E T & State Status & TE Federal Cinnamon fern Osmundastrum cinnamomeum Interrupted fern Osmunda claytoniana Royal fern Osmunda regalis SCHIZAEALES Lygodiaceae (curly grass) Climbing fern Lygodium palmatum G4 S2 T POLYPODIALES Polypodiaceae (common ferns, licorice ferns) Rock polypody Polypodium virginianum Silvery-spleenwort Athyrium thelypteroides Dryopteridaceae (wood fern) Christmas fern Polystichum acrostichoides Crested wood fern Dryopteris cristara Intermediate woodfern Dryopteris intermedia Marginal wood fern Dryopteris marginalis Spinulose woodfern Dryopteris carthusiana Dennstaedtiaceae (bracken) Braken Pteridium aquilinum Braken fern Pteridium aquilinum var. latiusculum Eastern hayscented fern Dennstaedtia punctilobula Adiantaceae Maidenhair fern Adiantum pedatum BLECHNALES Blechnaceae (deer-fern) Netted chainfern Woodwardia areolata Virginia chainfern Woodwardia virginica Aspleniaceae (spleenwort) Ebony spleenwort Asplenium platyneuron Athyriaceae Lady Fern Athyrium filix-femina Onocleaceae Sensitive fern Onoclea sensibilis A1-2 Appendix A1. Known or Suspected Plant Species on Patuxent Research Refuge Common Name Scientific Name Global Natural Heritage Rank Heritage Natural Global Rank Heritage Natural State Status E T & State Status & TE Federal Thelypteridaceae Bog fern Thelypteris simulata Broad beech fern Phegopteris hexagonoptera Eastern marsh fern Thelypteris palustris New York fern Thelypteris noveboracensis PINALES (CONIFERS) Pinaceae (pines) Eastern white pine Pinus strobus Eastern-hemlock Tsuga canadensis Loblolly pine Pinus taeda Pitch pine Pinus rigida Virginia pine Pinus virginiana Cupressaceae (cypress, redwood) Bald cypress Taxodium distichum Eastern red-cedar Juniperus virginiana Northern white cedar Thuja occidentalis G5 S1 T NYMPHAEALES Cabombaceae (water-shield) Water-shield Brasenia schreberi Nymphaeaceae (water lilies) European waterlily Nymphaea alba White waterlily Nymphaea odorata Yellow pond-lily Nuphar lutea spp. advena PIPERALES Aristolochiaceae (birthworts) Canadian wild-ginger Asarum canadense Saururaceae (lizard tails) Lizard tail Saururus cernuus LAURALES Lauraceae (laurels) Sassafras Sassafras albidum Spicebush Lindera benzoin A1-3 Patuxent Research Refuge Draft CCP/EA Common Name Scientific Name Global Natural Heritage Rank Heritage Natural Global Rank Heritage Natural State Status E T & State Status & TE Federal MAGNOLIALES Annonaceae (custard apples) Pawpaw Asimina triloba Magnoliaceae (magnolias) Sweetbay Magnolia virginiana Tuliptree Liriodendron tulipfera ACORALES Acoraceae Sweetflag Acorus calamus ALISMATALES Alismataceae (arrowhead, water-plantain) Alisma subcorde Alisma subcordatum Awl-leaf arrowhead Sagittaria subulata G5 S1 E Broadlear arrowhead Sagittaria latifoilia Sagittaria graminea var. G5 SU Grass-Leaved arrowhead weatherbiana Araceae (arums) Brazilian watermeal Wolffia brasiliensis Goldenclub Orontium aquaticum Green arrow arum Peltandra virginica Jack-in-the-pulpit Arisaema triphyllum Lesser duckweed Lemna minor Skunk cabbage Symplocarpus foetidus Valdivia duckweed Lemna valdiviana Hydrocharitaceae (frog's bit, tape-grass, waternymphs) American eelgrass Vallisneria americana Broad waterweed Elodea canadensis Potamogetonaceae (pond weed, pondweed, Pondweed family) Broadleaf pondweed Potamogenton natans Heartleaf pondweed Potamogenton pulcher Ribbonleaf pondweed Potamogeton epihydrus Slender naiad Najas gracillima G5? SU X A1-4 Appendix A1. Known or Suspected Plant Species on Patuxent Research Refuge Common Name Scientific Name Global Natural Heritage Rank Heritage Natural Global Rank Heritage Natural State Status E T & State Status & TE Federal Small pondweed Potamogeton pusillus G5 S1 Southern naiad Najas guadalupensis G5 S3 Waterthread Potamogeton diversifolius DIOSCOREALES Dioscoreaceae (yams) Chinese yam Dioscorea polystachya Wild yam Dioscorea villosa Nartheciaceae White colicroot Aletris farinosa LILIALES Colchicaceae Perfoliate bellwort Uvularia perfoliata Sessileleaf bellwort Uvularia sessilifolia Liliaceae Dogtooth violet Erythronium americanum Indian cucumber Medeola virginiana Star-of-Bethlehem Ornithogalum umbellatum Turks-cap lily Lilium superbum Melanthiaceae Eastern featherbells Stenanthium gramineum G4 G5 S1 T Smilacaceae Cat greenbrier Smilax glauca Herbaceous greenbriar Smilax herbacea ASPARAGALES Amaryllidaceae Adam's needle Yucca filamentosa * Canada garlic Allium canadense Summer snowflake Leucojum aestivum Wild garlic Allium vineale Asparagaceae Asparagus Asparagus officinalis False lily-of-the-valley Maianthemum canadense A1-5 Patuxent Research Refuge Draft CCP/EA Common Name Scientific Name Global Natural Heritage Rank Heritage Natural Global Rank Heritage Natural State Status E T & State Status & TE Federal False solomons-seal Maianthemum racemosa racemosa Smooth solomons-seal Polygonatum biflorum Hypoxidaceae Common goldstar Hypoxis hirsuta Daffodil Narcissus pseudonarcissus Iridaceae Blue-eyed grass Sisyrinchium angustifolium Eastern blue-eyed grass Sisyrinchium atlanticum Harlequin blueflag Iris versicolor Paleyellow iris Iris pseudacorus Orchidaceae (orchids) Autumn coralroot Corallorrhiza odontorhiza Crippled cranefly Tipularia discolor Downy rattlesnake-plantain Goodyera pubescens Green fringe-orchid Platanthera lacera Green woodland orchid Platanthera clavellata Nodding ladies-tresses Spiranthes cernua Northern slender ladies-tresses Spiranthes lacera var. gracilis Palegreen orchid Platanthera flava G4 S2 Pink lady-slipper Cypripedium acaule Purple fiveleaf orchid Isotria verticillata Showy orchid Galearis spectabilis Upland ladies-tresses Spiranthes vernalis Yellow fringe-orchid Plantanthera ciliaris Xanthorrhoeaceae Orange daylily Hemerocallis fulva COMMELINALES Commelinaceae (spiderworts) Common dayflower Commelina communis Virginia dayflower Commelina virginica Pontederiaceae Kidneyleaf mudplantain Heteranthera reniformis A1-6 Appendix A1. Known or Suspected Plant Species on Patuxent Research Refuge Common Name Scientific Name Global Natural Heritage Rank Heritage Natural Global Rank Heritage Natural State Status E T & State Status & TE Federal Pickerel-weed Pontederia cordata POALES Cyperaceae (foins coupants, laîches, rouches, rouchettes, sedges) Amphibious sedge Carex amphibola Awlfruit sedge Carex stipata Bland sedge Carex blanda Blue sedge Carex complanata Blunt broom sedge Carex tribuloides Broad looseflower sedge Carex laxiflora Brook flatsedge Cyperus bipartitus Broom sedge Carex scoparia Brownish beakrush Rhynchospora capitellata Bur-reed sedge Carex sparganioides G5 S1 S2 Button sedge Carex bullata G5 Carolina sedge Carex caroliniana Cattail sedge Carex typhina Chufa flatsedge Cyperus esculentus Common fox sedge Carex vulpinoidea Common threesquare Schoenoplectus pungens Creeping spikerush Eleocharis palustris Cyperuslike sedge Carex pseudocyperus Darkgreen sedge Carex venusta G4 S2 T Densetuft hairsedge Bulbostylis capillaris Eastern straw sedge Carex straminea G5 S1 S2 Fescue sedge Carex festucacea Fewflower nutrush Scleria pauciflora G5 S3 Flase hop sedge Carex lupuliformis G4 S2 Fragrant flatsedge Cyperus odoratus Frank's sedge Carex frankii Globe beakrush Rhynchospora globularis G5? S1 E Globe flatsedge Cyperus echinatus Gray's sedge Carex grayi A1-7 Patuxent Research Refuge Draft CCP/EA Common Name Scientific Name Global Natural Heritage Rank Heritage Natural Global Rank Heritage Natural State Status E T & State Status & TE Federal Great Plains flatsedge Cyperus lupulinus Greater bladder sedge Carex intumescens Green bulrush Scirpus atrovirens Hairy sedge Carex lacustris G5 S2 Hardstem bulrush Scirpus acutus Hop sedge Carex lupulina Leafy bulrush Scirpus polyphyllus Leavensworth's sedge Carex leavenworthii Long's sedge Carex longii Louisiana sedge Carex louisianica G5 Low spikesedge Kyllinga pumila G5 S1 E Marsh flatsedge Cyperus pseudovegetus Needle spikerush Eleocharis acicularis Netted nutrush Scleria reticularis G4 S2 S3 Northern long sedge Carex folliculata Oval-leaf sedge Carex cephalophora Ovate spikerush Eleocharis ovata Parasol sedge Carex umbellata Pennsylvania sedge Carex pensylvanica Pine barren flatsedge Cyperus retrorsus Prickly bog sedge Carex atlantica Redroot flatsedge Cyperus erythrorhizos Ribbed sedge Carex