Acalypha gracilens Gray Slender Three-seeded Mercury, Short-stalk Copperleaf Acalypha rhomboidea Raf. Common Three-seeded Mercury, Common Copperleaf Acalypha virginica L. Virginia Three-seeded Mercury, Virginia Copperleaf Acer negundo L. var. negundo Boxelder, Eastern Boxelder Acer rubrum L. Red Maple Acer saccharinum L. Silver Maple Achillea millefolium L. Common Yarrow Aconitum uncinatum L. Blue Monkshood Actaea pachypoda Ell. White Baneberry, Dolls'-eyes Actaea racemosa L. Common Black Cohosh, Bugbane Adiantum pedatum L. Northern Maidenhair Fern Aeschynomene virginica (L.) B.S.P. Sensitive Joint-vetch, Northern Joint-vetch Agalinis maritima (Raf.) Raf. var. maritima Salt Marsh False Foxglove Agalinis obtusifolia Raf. Ten-lobe False Foxglove Agalinis purpurea (L.) Pennell Purple False Foxglove Agalinis setacea (J.F. Gmel.) Raf. Threadleaf False Foxglove Agastache nepetoides (L.) Kuntze Yellow Giant Hyssop Ageratina altissima (L.) King & H.E. Robins. var. altissima White Snakeroot Ageratina aromatica (L.) Spach Small White Snakeroot, Lesser Snakeroot Agrimonia gryposepala Wallr. Tall Hairy Agrimony Agrimonia pubescens Wallr. Downy Agrimony Agrimonia rostellata Wallr. Woodland Agrimony Agrostis hyemalis (Walt.) B.S.P. Winter Bentgrass, Ticklegrass Agrostis perennans (Walt.) Tuckerman var. perennans Autumn Bentgrass Alisma subcordatum Rafinesque Southern Water-plantain Allium canadense L. var. canadense Wild Onion, Meadow Onion Alnus serrulata (Ait.) Willd. Smooth Alder, Hazel Alder Alopecurus carolinianus Walt. Carolina Foxtail Grass Amaranthus cannabinus (L.) J.D. Sauer Tidal-marsh Amaranth, Water-hemp Amaranthus hybridus L. Slender Pigweed, Smooth Pigweed, Green Amaranth Ambrosia artemisiifolia L. Common Ragweed Ambrosia trifida L. Giant Ragweed Amelanchier arborea (Michx. f.) Fernald Downy Serviceberry Amelanchier canadensis (L.) Medik. Giant Ragweed Amelanchier laevis Wieg. Smooth Serviceberry Amelanchier obovalis (Michx.) Ashe Coastal Plain Serviceberry Amelanchier sanguinea (Pursh) DC. var. sanguinea Roundleaf Serviceberry Amelanchier spicata (Lam.) K. Koch Running Serviceberry, Dwarf Serviceberry Ammannia latifolia L. Koehne's Ammannia, Pink Redstem Ammophila breviligulata Fern. American Beach Grass Amorpha fruticosa L. False Indigo-bush, Tall Indigo-bush Ampelopsis cordata Michx. Heart-leaf Peppervine, False Grape not specified Amphicarpaea bracteata (L.) Fern. Hog-peanut Andropogon glomeratus (Walt.) B.S.P. var. glomeratus Bushy Bluestem Andropogon gyrans Ashe Elliott's Bluestem Andropogon ternarius Michx. var. ternarius Splitbeard Bluestem, Silvery Bluestem Andropogon virginicus L. var. virginicus Broomsedge, Broomstraw, Sedge Grass, Sage Grass Anemone quinquefolia L. var. quinquefolia Wood Anemone Anemone virginiana L. var. virginiana Thimbleweed, Tall Anemone Angelica venenosa (Greenway) Fern. Hairy Angelica Antennaria parlinii Fern. ssp. fallax (Greene) Bayer & Stebbins Big-head Pussytoes Antennaria plantaginifolia (L.) Richards. Plantain-leaved Pussytoes Antennaria solitaria Rydb. Single-head Pussytoes Apios americana Medik. Groundnut Aplectrum hyemale (Muhl. ex Willd.) Torrey Puttyroot, Adam-and-Eve Apocynum cannabinum L. Indian Hemp, Hemp Dogbane Aquilegia canadensis L. Wild Columbine, Eastern Red Columbine Arabidopsis lyrata (L.) O'Kane & Al-Shehbaz ssp. lyrata Lyre-leaf Rock Cress Aralia nudicaulis L. Wild Sarsaparilla Aralia spinosa L. Devil's Walking-stick Arisaema dracontium (L.) Schott Green Dragon Arisaema triphyllum (L.) Schott ssp. triphyllum Common Jack-in-the-pulpit Aristida dichotoma Michx. var. dichotoma Fork-tip Three-awn Grass Aristida oligantha Michx. Prairie Three-awn Grass Aristida purpurascens Poir. Purple Three-awn Grass, Arrow-feather, Three-awn Grass Arnica acaulis (Walt.) B.S.P. Leopard's-bane Arnoglossum atriplicifolium (L.) H.E. Robins. Pale Indian-plantain Aronia arbutifolia (L.) Ell. Red Chokeberry Aronia melanocarpa (Michx.) Elliott Black Chokeberry Aronia prunifolia (Marsh.) Rehder Purple Chokeberry Arundinaria tecta (Walt.) Muhl. Small Cane, Switch Cane Asarum canadense L. Common Wild Ginger Asclepias amplexicaulis J.E.Smith Clasping Milkweed Asclepias incarnata L. Swamp Milkweed Asclepias incarnata L. var. pulchra (Ehrh. ex Willd.) Pers. Swamp Milkweed Asclepias syriaca L. Common Milkweed Asclepias tuberosa L. var. tuberosa Butterfly-weed, Common Butterfly-weed Asclepias variegata L. White Milkweed Asclepias verticillata L. Whorled Milkweed Asimina triloba (L.) Dunal Pawpaw, Common Pawpaw Asplenium platyneuron (L.) B.S.P. Ebony Spleenwort Astragalus canadensis L. var. canadensis Canada Milkvetch Athyrium asplenioides (Michx.) A.A. Eaton Southern Lady Fern Atriplex mucronata Raf. Sea-beach Orach Aureolaria virginica (L.) Pennell Downy Yellow False Foxglove, Downy Oak-leach Avenella flexuosa (Linnaeus) Drejer Wavy Hairgrass Baccharis halimifolia L. High-tide Bush, Groundsel Tree Baptisia tinctoria (L.) R. Br. ex Ait. f. Yellow Wild Indigo, Horsefly Weed Bartonia virginica (L.) BSP Yellow Bartonia, Yellow Screwstem Betula lenta L. var. lenta Sweet Birch, Black Birch Betula nigra L. River Birch, Red Birch Bidens aristosa (Michx.) Britt. Tickseed Sunflower not specified Bidens bipinnata L. Spanish Needles Bidens cernua L. Nodding Beggar-ticks, Nodding Bur-marigold Bidens comosa (Gray) Wiegand Three-lobe Beggar-ticks Bidens discoidea (Torr. & Gray) Britt. Small Beggar-ticks Bidens frondosa L. Devil's Beggar-ticks Bidens laevis (L.) B.S.P. Smooth Bur-marigold, Showy Bur-marigold Bignonia capreolata L. Cross-vine Boechera laevigata (Muhl. ex Willd.) Al-Shehbaz Smooth Rock Cress Boehmeria cylindrica (L.) Sw. False Nettle Bolboschoenus robustus (Pursh) Sojak Saltmarsh Bulrush Borrichia frutescens (L.) DC. Seaside Oxeye, Sea Oxeye Botrypus virginianus (L.) Holub Rattlesnake Fern Brachyelytrum erectum (Schreb. ex Spreng.) Beauv. Bearded Shorthusk, Common Shorthusk Brasenia schreberi J. F. Gmel. Water Shield Bromus pubescens Sprengel Common Eastern Brome Grass, Hairy Woodland Brome Bulbostylis capillaris (L.) Clarke in Hook. Common Hairsedge Cakile edentula (Bigelow) Hooker American Sea Rocket Calamagrostis coarctata (Torrey) Eaton Nuttall's Reedgrass Callicarpa americana L. American Beauty-berry, French-mulberry Callitriche heterophylla Pursh ssp. heterophylla Large Water-starwort Callitriche palustris L. Vernal Water-starwort Callitriche terrestris Raf. Terrestrial Water-starwort Caltha palustris L. Marsh Marigold, Cowslip Calystegia sepium (L.) R. Br. Hedge Bindweed Campsis radicans (L.) Seem. ex Bureau Trumpet-creeper Cardamine angustata O. E. Schulz Slender Toothwort Cardamine bulbosa (Schreber ex. Muhlenberg) Britton, Sterns & Poggenberg Spring Cress, Bulbous Bittercress Cardamine concatenata (Michaux) O. Schwarz Cut-leaf Toothwort Cardamine pensylvanica Muhlenberg ex Willdenow Pennsylvania Bittercress Cardamine pratensis Linnaeus Cuckoo-flower Carex abscondita Mackenzie Thicket Sedge Carex alata Torrey Broad-winged Sedge Carex albicans complex Carex albicans complex Carex albolutescens Schweinitz Greenish-white Sedge Carex amphibola complex Carex amphibola complex Carex amphibola Steudel Eastern Narrow-leaved Sedge Carex annectens (Bickn.) Bickn. Yellow-fuited Sedge Carex atlantica Bailey ssp. atlantica Prickly Bog Sedge, Atlantic Sedge Carex atlantica Bailey ssp. capillacea (Bailey) Rezn. Howe's Sedge Carex blanda Dewey Eastern Woodland Sedge Carex bromoides Schk. ex Willd. ssp. bromoides Common Brome Sedge Carex canescens L. var. disjuncta Fernald Silvery Sedge Carex caroliniana Schweinitz Carolina Sedge Carex cephalophora Muhl. ex Willd. Oval-leaved Sedge Carex collinsii Nuttall Collins's Sedge Carex comosa Boott Bottlebrush Sedge, Bristly Sedge Carex complanata Torr. & Hook. Hirsute Sedge Carex crebriflora Wiegand Coastal Plain Sedge Carex crinita Lam. var. crinita Long-fringed Sedge Carex debilis Michaux White-edged Sedge Carex digitalis Willd. Slender Woodland Sedge Carex digitalis Willd. var. digitalis Slender Woodland Sedge Carex echinata Murray ssp. echinata Star Sedge, Little Prickly Sedge Carex festucacea Schk. ex Willd. Fescue Sedge Carex frankii Kunth Frank's Sedge Carex gigantea Rudge Giant Sedge Carex glaucescens Elliott Southern Waxy Sedge Carex gracilescens Steudel Slender Loose-flowered Sedge Carex granularis Muhl. ex Willd. Limestone Meadow Sedge Carex gravida Bailey Heavy Sedge Carex grayi Carey Gray's Sedge Carex hirsutella Mackenzie Fuzzy Sedge, Hairy-leaved Sedge Carex hormathodes Fernald Marsh Straw Sedge Carex intumescens Rudge var. intumescens Bladder Sedge Carex kraliana Naczi & Bryson Kral's Sedge Carex lacustris Willdenow Lake-shore Sedge Carex laevivaginata (Kukenth.) Mackenzie Smooth-sheathed Sedge Carex laxiculmis Schweinitz var. laxiculmis Spreading Sedge Carex laxiflora Lam. Broad Loose-flowered Sedge Carex leptalea Wahlenb. Bristly-stalk Sedge Carex lonchocarpa Willd. ex Sprengel Southern Long Sedge Carex longii Mackenzie Long's Sedge Carex lupulina Willd. Hop Sedge Carex lurida Wahlenb. Sallow Sedge Carex muehlenbergii Schk. ex Willd. Muehlenberg's Sedge Carex nigromarginata Schweinitz Black-edged Sedge Carex normalis Mackenzie Greater Straw Sedge Carex oligocarpa Willd. Eastern Few-fruited Sedge Carex platyphylla Carey Broad-leaved Sedge Carex prasina Wahlenb. Drooping Sedge Carex retroflexa Muhl. ex Willd. var. retroflexa Reflexed Sedge Carex rosea Schk. ex Willd. Rosy Sedge Carex scoparia Schk. ex Willd. var. scoparia Broom Sedge Carex seorsa Howe in Gordinier & Howe Weak Stellate Sedge Carex stipata Muhl. ex Willd. var. stipata Stalk-grain