Abrus precatorius rosary pea
Abutilon hulseanum red Indian mallow
Abutilon theophrasti butter-print velvet-leaf
Acacia choriophylla tamarindillo, thornless acacia
Acacia farnesiana sweet acacia
Acacia pinetorum pine acacia
Acacia tortuosa long-spine acacia, steel acacia
Acanthocereus tetragonus dildoe cactus, barbed wire cactus
Acer negundo box-elder
Acer rubrum red maple
Acer saccharinum silver maple
Acer saccharum subsp. floridanum Florida maple
Acer saccharum subsp. leucoderme sugar maple
Achillea millefolium yarrow, milfoil
Achyranthes aspera devil's horsewhip
Acmella oppositifolia var. repens button of gold, oppositeleaf spotflower
Acoelorraphe wrightii parotis palm
Acrostichum aureum golden golden leather fern
Acrostichum danaeifolium giant leather fern
Actaea pachypoda white baneberry, doll's eyes
Adiantum capillus-veneris Venus maidenhair fern
Adiantum tenerum fan maidenhair fern, brittle maidenhair fern
Aeschynomene pratensis meadow jointvetch
Aeschynomene viscidula prostrate jointvetch
Aesculus pavia red buckeye
Agalinis divaricata pineland falsefoxglove
Agalinis fasciculata beach falsefoxglove, purple falsefoxglove
Agalinis filicaulis Jackson falsefoxglove
Agalinis filifolia Seminole falsefoxglove
Agalinis linifolia flax-leaf falsefoxglove
Agalinis maritima saltmarsh falsefoxglove
Agalinis obtusifolia ten-lobe falsefoxglove
Agalinis purpurea large purple false-foxglove, purple gerardia
Agalinis tenuifolia slender falsefoxglove
Agarista populifolia Florida hobblebush, pipewood, agarista
Ageratina altissima white snakeroot
Ageratina aromatica wild hoarhound
Ageratina jucunda ageratina
Agrostis hyemalis ticklegrass, winter bentgrass
Albizia julibrissin mimosa, silk tree
Albizia lebbeck woman's-tongue
Aletris aurea golden colic-root
Aletris lutea yellow colic-root
Aletris obovata southern colic-root, white colic-root
Allamanda cathartica golden-trumpet
Allamanda violaceae purple allamanda
Allium canadense wild onion, meadow garlic
Alnus serrulata hazel alder
Alternanthera philoxeroides alligator-weed
Amaranthus australis southern amaranth, giant amaranth
Amaranthus hybridus common pigweed
Ambrosia artemisiifolia annual ragweed
Ambrosia hispida coastal ragweed
Amelanchier arborea serviceberry
Amorpha fruticosa false indigo-bush, bastard-indigo
Amorpha herbacea cluster-spike indigo-bush
Ampelopsis arborea pepper-vine
Amphicarpum muhlenbergianum blue maidencane
Amsonia ciliata slimpod, bluestar, blue dogbane
Amsonia tabernaemontana easterm bluestar
Andropogon brachystachyus short-spike bluestem
Andropogon glomeratus bushy bluestem
Andropogon glomeratus var. glaucopsis purple bluestem
Andropogon gyrans Elliott's bluestem
Andropogon ternarius splitbeard bluestem
Andropogon virginicus broomsedge bluestem
Andropogon virginicus var. decipiens broomsedge bluestem
Andropogon virginicus var. glaucus chalky bluestem
Anemia adiantifolia pine fern
Anemonella thalictroides rue-anemone
Angadenia berteroi pineland allamanda
Annona glabra pond-apple, custard-apple
Annona squamosa sugar-apple, sweetsop
Anredera vesicaria Madiera vine
Antigonon leptopus coral-vine
Apios americana American groundnut
Apocynum cannabinum Indian hemp, dogbane
Aquilegia canadensis var. australis Marianna columbine
Aralia spinosa devil's-walkingstick
Ardisia crenata marlberry
Ardisia escallonioides marlberry, marbleberry
Argemone albiflora Carolina pricklypoppy
Argemone mexicana Mexican pricklypoppy
Argusia gnaphalodes sea-lavender, sea-rosemary
Argythamnia blodgettii Blodgett's wild-mercury
Arisaema dracontium green dragon
Arisaema triphyllum jack-in-the-pulpit
Aristida purpurascens arrowfeather
Aristida spiciformis bottlebrush grass
Aristida stricta var. beyrichiana wiregrass
Aristolochia serpentaria snakeroot
Aristolochia tomentosa wooly Dutchman's pipe
Arnoglossum floridanum Indian-plantain
Arnoglossum ovatum egg-leaf Indian-plantain
Arundinaria gigantea switchcane, giant cane
Arundo donax giant-reed
Asarum arifolium heartleaf, wild ginger
Asclepias cinerea Carolina milkweed
Asclepias connivens large-flower milkweed
Asclepias curassavica scarlet milkweed
Asclepias curtissii Curtis' milkweed
Asclepias feayi Feay's milkweed
Asclepias humistrata sandhill milkweed
Asclepias incarnata swamp milkweed
Asclepias lanceolata red (fen-flower) milkweed
Asclepias longifolia long-leaf milkweed
Asclepias michauxii milkweed
Asclepias obovata pineland milkweed
Asclepias pedicellata Savannah milkweed
Asclepias perennis aquatic milkweed
Asclepias tuberosa butterflyweed
Asclepias variegata variegated milkweed
Asclepias verticillata whorl-leaf milkweed
Asclepias viridula southern (=green) milkweed
Asimina angustifolia narrowleaf pawpaw
Asimina incana polecat bush, flag pawpaw
Asimina obovata flag pawpaw
Asimina parviflora small-fruited pawpaw
Asimina pygmea dwarf pawpaw
Asimina reticulata dog banana, reticulate pawpaw
Asimina tetramera four-petal (=opossum) pawpaw
Asparagus aethiopicus Sprenger's asparagus-fern
Asparagus officinalis garden aparugus-fern asparagus
Asplenium erosum auricled spleenwort
Asplenium heterochroum Wagner's spleenwort, varicolored spleenwort
Asplenium monanthes San Felasco spleenwort
Asplenium serratum bird's nest spleenwort
Astragalus villosus hairy milkvetch, bearded milkvetch
Aureolaria flava smooth yellow false foxgove
Aureolaria pedicularia var. pectinata fernleaf yellow false foxglove
Avicennia germinans black mangrove
Axonopus fissifolius common carpetgrass
Axonopus furcatus big carpetgrass
Azolla caroliniana mosquito fern