| Scientific Name |
Common Name |
Native Status |
|
|
|
|
|
Radula australis Austin
|
|
N |
|
Radula complanata (L.) Dumort.
|
|
N |
|
Radula obconica Sullivant
|
|
N |
|
Radula quadrata Gottsche
|
|
N |
|
Radula tenax Lindberg
|
|
N |
|
Ranunculus abortivus L.
|
Kidneyleaf Buttercup |
N |
|
Ranunculus acris L.
|
Tall Buttercup, Bitter Buttercup |
I |
|
Ranunculus allegheniensis Britt.
|
Allegheny Buttercup, Mountain Crowfoot |
N |
|
Ranunculus ambigens S. Wats.
|
Water-plantain Crowfoot, Water-plantain Spearwort |
N |
|
Ranunculus aquatilis L. var. diffusus Withering
|
Long-beaked Buttercup, White Water Crowfoot |
N |
|
Ranunculus bulbosus L.
|
Bulbous Buttercup |
I |
|
Ranunculus caricetorum Greene
|
Northern Swamp Buttercup, Marsh Buttercup |
N |
|
Ranunculus fascicularis Muhl. ex Bigelow
|
Thick-root Buttercup, Early Buttercup |
N |
|
Ranunculus flabellaris Raf.
|
Yellow Water Crowfoot |
N |
|
Ranunculus hederaceus L.
|
Ivy-leaved Water Crowfoot, Long-stalked Crowfoot |
N |
|
Ranunculus hispidus Michx.
|
Bristly Buttercup, Hispid Buttercup |
N |
|
Ranunculus laxicaulis (Torr. & Gray) Darby
|
Mississippi Buttercup |
N |
|
Ranunculus micranthus Nutt.
|
Rock Buttercup |
N |
|
Ranunculus parviflorus L.
|
Small-flowered Buttercup, Stick-seed Crowfoot |
I |
|
Ranunculus pusillus Poir.
|
Low Spearwort |
N |
|
Ranunculus recurvatus Poir. var. recurvatus
|
Hooked Buttercup, Hooked Crowfoot |
N |
|
Ranunculus repens L.
|
Creeping Buttercup |
I |
|
Ranunculus sardous Crantz
|
Hairy Buttercup |
I |
|
Ranunculus sceleratus L. var. sceleratus
|
Cursed Buttercup, Celery-leaved Crowfoot |
N |
|
Ranunculus septentrionalis Poir.
|
Carolina Buttercup |
N |
|
Raphanus raphanistrum L.
|
Wild Radish, Jointed Charlock, White Charlock |
I |
|
Raphanus sativus Linnaeus
|
Radish |
I |
|
Rapistrum rugosum (Linnaeus) Allioni
|
Annual Bastard Cabbage |
I |
|
Ratibida pinnata (Vent.) Barnh.
|
Gray-headed Coneflower |
I |
|
Rauiella scita (P. Beauv.) Reimers
|
|
N |
|
Reboulia hemisphaerica (L.) Raddi
|
|
N |
|
Reynoutria japonica Houttuyn var. japonica
|
Japanese Knotweed |
I |
|
Reynoutria sachalinensis (F. Schmidt ex Maximowicz) Nakai
|
Giant Knotweed |
I |
|
Rhabdoweisia crispata (Dicks. ex With.) Lindb.
|
|
N |
|
Rhamnus cathartica L.
|
Common Buckthorn |
I |
|
Rhamnus davurica Pallas
|
Dahurian Buckthorn |
I |
|
Rhamphospermum arvensis (L.) Al-Shehbaz
|
Charlock |
I |
|
Rhamphospermum nigrum (L.) Al-Shehbaz
|
Black Mustard, Charlock |
I |
|
Rhexia mariana L. var. mariana
|
Maryland Meadow Beauty, Pale Meadow Beauty |
N |
|
Rhexia nashii Small
|
Hairy Meadow Beauty |
N |
|
Rhexia petiolata Walt.
|
Fringed Meadow Beauty |
N |
|
Rhexia ventricosa Fernald & Griscom
|
Swollen Meadow Beauty |
N |
|
Rhexia virginica L.
|
Virginia Meadow Beauty |
N |
|
Rhizomnium appalachianum T. J. Kop.
|
|
N |
|
Rhizomnium magnifolium (Horik.) T.J. Kop.
|
|
N |
|
Rhizomnium punctatum (Hedw.) T.J. Kop.
|
|
N |
|
Rhodobryum ontariense (Kindb.) Kindb.
|
Rose Moss |
N |
|
Rhododendron arborescens (Pursh) Torrey
|
Smooth Azalea, Sweet Azalea |
N |
|
Rhododendron atlanticum (Ashe) Rehder
|
Dwarf Azalea |
N |
|
Rhododendron calendulaceum (Michx.) Torr.
|
Flame Azalea |
N |
|
Rhododendron catawbiense Michx.
|
Catawba Rhododendron, Mountain Rosebay, Pink Laurel |
N |
|
Rhododendron cumberlandense E.L. Braun
|
Cumberland Azalea |
N |
|
Rhododendron maximum L.
|
Great Rhododendron, White Rosebay, Great Laurel |
N |
|
Rhododendron minus Michx.
|
Gorge Rhododendron |
I |
|
Rhododendron periclymenoides (Michx.) Shinners
|
Wild Azalea, Pinxterflower, Pinxterbloom Azalea |
N |
|
Rhododendron pilosum (Michx.) Craven
|
Minniebush |
N |
|
Rhododendron prinophyllum (Small) Millais
|
Early Azalea, Rose Azalea, Roseshell Azalea |
N |
|
Rhododendron viscosum (L.) Torr. var. serrulatum (Small) H.E. Ahles
|
Southeastern Swamp Azalea, Southeastern Clammy Azalea |
N |
|
Rhododendron viscosum (L.) Torr. var. viscosum
|
Swamp Azalea, Clammy Azalea |
N |
|
Rhodotypos scandens (Thunb.) Makino
|
Jetbead |
I |
|
Rhus aromatica Aiton var. aromatica
|
Fragrant Sumac |
N |
|
Rhus copallinum L. var. copallinum
|
Winged Sumac, Shining Sumac |
N |
|
Rhus copallinum L. var. latifolia Engler
|
Winged Sumac, Shining Sumac |
N |
|
Rhus glabra L.
|
Smooth Sumac |
N |
|
Rhus michauxii Sargent
|
Michaux's Sumac, Dwarf Sumac |
N |
|
Rhus typhina L.
|
Staghorn Sumac |
N |
|
Rhynchosia difformis (Ell.) DC.
|
Climbing Snoutbean, Double-form Snoutbean |
N |
|
Rhynchosia tomentosa (L.) Hook. & Arnott
|
Hairy Snoutbean |
N |
|
Rhynchospora alba (L.) Vahl
|
Northern White Beaksedge |
N |
|
Rhynchospora caduca Elliott
|
Angle-stem Beaksedge |
N |
|
Rhynchospora capillacea Torrey
|
Needle Beaksedge |
N |
|
Rhynchospora capitellata (Michaux) Vahl
|
Brownish Beaksedge |
N |
|
Rhynchospora cephalantha A. Gray var. attenuata Gale
|
Small Bunched Beaksedge |
N |
|
Rhynchospora cephalantha A. Gray var. cephalantha
|
Common Bunched Beaksedge |
N |
|
Rhynchospora chalarocephala Fernald and Gale
|
Loose-headed Beaksedge |
N |
|
Rhynchospora colorata (L.) H. Pfeiffer
|
Narrow-leaf Whitetop Sedge |
N |
|
Rhynchospora corniculata (Lam.) Gray
|
Short-bristled Horned Beaksedge |
N |
|
Rhynchospora debilis Gale
|
Savanna Beaksedge |
N |
|
Rhynchospora distans (Michx.) Vahl.
|
Fasciculate Beaksedge |
N |
|
Rhynchospora fascicularis (Michaux) Vahl
|
Fasciculate Beaksedge |
N |
|
Rhynchospora filifolia Gray
|
Thread-leaved Beaksedge |
N |
|
Rhynchospora globularis (Chapman) Small
|
Globe Beaksedge |
N |
|
Rhynchospora glomerata (L.) Vahl
|
Clustered Beaksedge |
N |
|
Rhynchospora gracilenta Gray
|
Slender Beaksedge |
N |
|
Rhynchospora grayi Kunth
|
Gray's Beaksedge |
N |
|
Rhynchospora harveyi W. Boott
|
Harvey's Beaksedge |
N |
|
Rhynchospora inexpansa (Michaux) Vahl
|
Nodding Beaksedge |
N |
|
Rhynchospora macrostachya Torrey ex Gray
|
Horned Beaksedge |
N |
|
Rhynchospora microcephala (Britton) Britton ex Small
|
Small-headed Bunched Beaksedge |
N |
|
Rhynchospora miliacea (Lam.) Gray
|
Millet Beaksedge |
N |
|
Rhynchospora nitens (Vahl) Gray
|
Short-beaked Beaksedge |
N |
|
Rhynchospora oligantha Gary
|
Feather-bristled Beaksedge |
N |
|
Rhynchospora pallida M.A. Curtis
|
Pale Beaksedge |
N |
|
Rhynchospora perplexa Britton in J.K. Small
|
Pineland Beaksedge |
N |
|
Rhynchospora rariflora (Michaux) Elliott
|
Few-flowered Beaksedge |
N |
|
Rhynchospora recognita (Gale) Kral
|
Round-headed Beaksedge |
N |
|
Rhynchospora scirpoides (Torrey) Grisebach
|
Long-beaked Beaksedge |
N |
|
Rhynchospora stenophylla Chapman
|
Coastal Bog Beaksedge |
N |
|
Rhynchospora torreyana Gray
|
Torrey's Beaksedge |
N |
|
Rhynchospora wrightiana Boeckl.
|
Wright's Beaksedge |
N |
|
Rhynchostegium serrulatum (Hedw.) A. Jaeger
|
|
N |
|
Rhytidiadelphus subpinnatus (Lindb.) T.J. Koponen
|
|
N |
|
Rhytidiadelphus triquetrus (Hedw.) Warnst.
|
|
N |
|
Rhytidium rugosum (Hedw.) Kindb.
|
|
N |
|
Ribes americanum P.Mill.
|
Wild Black Currant, American Black Currant |
N |
|
Ribes cynosbati L.
|
Prickly Gooseberry |
N |
|
Ribes glandulosum Grauer
|
Skunk Currant |
N |
|
Ribes missouriense Nutt.
|
Missouri Gooseberry |
I |
|
Ribes rotundifolium Michx.
|
Appalachian Gooseberry |
N |
|
Ribes rubrum L.
|
Garden Red Currant |
I |
|
Ribes uva-crispa var. sativum DC
|
European Gooseberry |
I |
|
Riccardia chamedryfolia (With.) Grolle
|
|
N |
|
Riccardia latifrons Lindberg ssp. latifrons
|
|
N |
|
Riccardia multifida (L.) Gray
|
|
N |
|
Riccardia palmata (Hedw.) Carruth.
|
|
N |
|
Riccia beyrichiana Hampe ex Lehm.
|
|
N |
|
Riccia cavernosa Hoffm.
|
|
N |
|
Riccia dictyospora M. Howe
|
|
N |
|
Riccia fluitans Linnaeus
|
|
N |
|
Riccia hirta (Austin) Underw.
|
|
N |
|
Riccia huebeneriana Lindenb. subsp. sullivantii (Austin) R.M. Schust.
|
|
N |
|
Riccia membranacea Gottsche, Lindenb. & Nees
|
|
N |
|
Riccia sorocarpa Bischoff
|
|
N |
|
Ricciocarpos natans (L.) Corda
|
|
N |
|
Richardia brasiliensis Gomes
|
Tropical Mexican-clover |
I |
|
Richardia scabra L.
|
Rough Mexican-clover, Florida Pusley |
|
|
Ricinus communis L.
|
Castor Bean |
I |
|
Ripariosida hermaphrodita (L.) Weakley & Poindexter
|
Virginia Sida, Virginia Mallow |
N |
|
Robinia hispida L.
|
Bristly Locust |
N |
|
Robinia pseudoacacia L.
|
Black Locust |
N |
|
Robinia viscosa Vent.
|
Clammy Locust |
|
|
Rorippa austriaca (Crantz) Besser
|
Austrian Yellow Cress |
I |
|
Rorippa indica (L.) Hiern.
|
Variable-leaf Yellow Cress |
I |
|
Rorippa palustris (L.) Besser ssp. palustris
|
Marsh Yellow Cress |
N |
|
Rorippa palustris (L.) Besser ssp. hispida (Desv.) Jonsell
|
Hairy Marsh Yellow Cress |
N |
|
Rorippa sessiliflora (Nutt.) A.S. Hitchc.
|
Stalkless Yellow Cress, Sessile-flowered Yellow Cress |
N |
|
Rorippa sylvestris (Linnaeus) Besser
|
Creeping Yellow Cress |
I |
|
Rosa blanda Aiton
|
Smooth Rose, Meadow Rose |
|
|
Rosa bracteata J.C. Wendl.
|
Chickasaw Rose |
I |
|
Rosa canina L.
|
Dog Rose |
I |
|
Rosa carolina L. ssp. carolina
|
Carolina Rose, Pasture Rose |
N |
|
Rosa carolina L. ssp. subserrulata (Rydb.) W.H. Lewis
|
Carolina Rose |
N |
|
Rosa cinnamomea L.
|
Cinnamon Rose |
I |
|
Rosa gallica L.
|
French Rose |
I |
|
Rosa luciae Franchet & Rochebrune ex Crepin
|
Memorial Rose, Dorothy Perkins Rose, Lucie Rose |
I |
|
Rosa multiflora Thunb. ex Murr.
|
Multiflora Rose |
I |
|
Rosa palustris Marsh.
|
Swamp Rose |
N |
|
Rosa rubiginosa L. var. nemoralis (Leman) Thory
|
Sweetbriar |
I |
|
Rosa rubiginosa L. var. rubiginosa
|
Eglantine Rose |
I |
|
Rosa rugosa Thunb.
|
Japanese Rose |
I |
|
Rosa setigera Michx.
|
Prairie Rose, Climbing Prairie Rose |
N |
|
Rosa spinosissima L.
|
Scotch Rose |
I |
|
Rosa virginiana Miller
|
Virginia Rose |
N |
|
Rosulabryum capillare (Hedw.) J.R. Spence
|
Cluster Moss |
N |
|
Rosulabryum laevifilum (Syed) Ochyra
|
|
N |
|
Rotala ramosior (L.) Koehne
|
Toothcup |
N |
|
Rottboellia cochinchinensis (Lour.) Clayton
|
Itchgrass |
I |
|
Rubacer odoratum (L.) Rydb.
|
Flowering Raspberry, Purple-flowering Raspberry |
N |
|
Rubus allegheniensis Porter
|
Allegheny Blackberry |
N |
|
Rubus bifrons Vest
|
European Blackberry, Himalayan Blackberry |
I |
|
Rubus canadensis L.
|
Smooth Blackberry, Thornless Blackberry |
N |
|
Rubus cuneifolius Pursh
|
Sand Blackberry |
N |
|
Rubus flagellaris Willd.
|
Common Dewberry |
N |
|
Rubus hispidus L.
|
Bristly Dewberry, Swamp Dewberry |
N |
|
Rubus idaeus L. ssp. strigosus (Michx.) Focke
|
Red Raspberry |
N |
|
Rubus laciniatus Willd.
|
Cut-leaved Blackberry, Evergreen Blackberry |
I |
|
Rubus occidentalis L.
|
Black Raspberry |
N |
|
Rubus pensilvanicus Poir.
|
Pennsylvania Blackberry, Prickly Blackberry |
N |
|
Rubus phoenicolasius Maxim.
|
Wineberry |
I |
|
Rubus setosus Bigelow
|
Bristly Blackberry |
N |
|
Rubus trivialis Michx.
|
Southern Dewberry |
N |
|
Rudbeckia fulgida Ait. var. fulgida
|
Orange Coneflower |
N |
|
Rudbeckia fulgida Ait. var. umbrosa (C.L. Boynt. & Beadle) Cronq.
|
Appalachian Coneflower |
N |
|
Rudbeckia heliopsidis Torr. & Gray
|
Sun-facing Coneflower |
N |
|
Rudbeckia hirta L. var. hirta
|
Woodland Black-eyed Susan |
N |
|
Rudbeckia hirta L. var. pulcherrima Farwell
|
Black-eyed Susan |
N |
|
Rudbeckia laciniata L.
|
Cut-leaf Coneflower, Common Cut-leaf Coneflower, Green-headed Coneflower |
N |
|
Rudbeckia laciniata L. var. bipinnata Perdue
|
|
N |
|
Rudbeckia laciniata L. var. digitata (Mill.) Fiori
|
Southeastern Cut-leaf Coneflower |
N |
|
Rudbeckia laciniata L. var. laciniata
|
Common Cut-leaf Coneflower |
N |
|
Rudbeckia triloba L. var. beadlei (Small) Fernald
|
Pinnate-lobed Coneflower |
N |
|
Rudbeckia triloba L. var. triloba
|
Three-lobed Coneflower, Brown-eyed Susan |
N |
|
Ruellia caroliniensis (Gmelin) Steudel
|
Carolina Wild-petunia, Common Wild-petunia |
N |
|
Ruellia humilis Nuttall
|
Low Wild-petunia, Hairy Wild-petunia |
N |
|
Ruellia purshiana Fernald
|
Pursh's Wild-petunia |
N |
|
Ruellia strepens L.
|
Smooth Wild-petunia, Limestone Wild-petunia |
N |
|
Rumex altissimus Wood
|
Pale Dock, Tall Dock |
N |
|
Rumex conglomeratus Murr.
|
Clustered Dock, Clustered Green Dock |
I |
|
Rumex crispus L. ssp. crispus
|
Curly Dock |
I |
|
Rumex obtusifolius L.
|
Bitter Dock, Broad-leaf Dock |
I |
|
Rumex pulcher L.
|
Fiddle Dock |
I |
|
Rumex verticillatus L.
|
Swamp Dock |
N |
|
Ruppia maritima L.
|
Wigeon-grass, Ditch-grass |
N |
|
Ruta graveolens L.
|
Rue |
I |