| A |
| Aaron's beard; St. John's wort, Hypericum calycinum |
| Abbaya de Cluny rose, Rosa 'MELbrinpay' |
| Abelia, Chinese, Abelia chinensis |
| Abelia, Edward Goucher, Abelia x grandiflora 'Edward Goucher' |
| Abelia, Fragrant, Abelia mosanensis |
| Abelia, Frances Mason, Abelia x grandiflora 'Frances Mason' |
| Abelia, Glossy, Abelia x grandiflora |
| Abelia, Korean, Abeliophyllum distichum |
| Abelia, Prostrate, Abelia x grandiflora 'Prostrata' |
| Abelia, Sunrise, Abelia x grandiflora 'Sunrise' |
| Abraham Darby rose, Rosa 'AUScot' |
| Abyssinian, Acidanthera bicolor |
| Ace of Diamonds rose, Rosa 'BRIace' |
| Aconite, Winter, Eranthis hyemalis; E. cilicica |
| Adagio miscanthus, Miscanthus sisnesis 'Adagio' |
| Adam's needle; Spanish bayonet, Yucca filamentos |
| Adina, Glossy, Adina rubella |
| Admired Miranda rose, Rosa 'AUSmir' |
| African corn-lily, Ixia |
| African-lily, Agapanthus cultivars |
| Agave, Parry's; Century plant, Agava parryi |
| Agave, Pulque; Century plant, Agave salmiana |
| Ageratum, Ageratum houstonianum |
| Ageratum, Hardy, Eupatorium coelestinum |
| Ageratum, Hardy; Mistflower; Wild ageratum, Eupatorium coelestium |
| Aime Plantier rose, Rosa 'Aime Plantier' |
| Ain't She Sweet rose, Rosa, 'WEKfrag' |
| Ajuga, Ajuga reptans |
| Ajuga, Pyramidal, Ajuga pyramidalis |
| Akebia, Five-leaf, Akebia quinata |
| Alabama snowwreath, Neviusia alabamensis |
| Alabama, Rosa 'Alabama' |
| Alain Blanchard rose, Rosa 'Alain Blanchard' |
| Alba rose, Rosa alba |
| Alba Semi-Plena rose, Rosa alba 'Semi-plena' |
| Albert Greenberg water lily, Nymphaea 'Albert Greenburg' |
| Alder buckthorn, Rhamnus fragula |
| Alder, Black, Alnus glutinosa |
| Alder, Black, Ilex verticillata |
| Alder, Black, Ilex verticillata |
| Alder, Common, Alnus glutinosa |
| Alder, European, Alnus glutinosa |
| Alder, Japanese, Alnus japonica |
| Alder, Manchurian, Alnus hirsuta |
| Alder, Tag; Hazel alder, Alnus serrulata |
| Alfred de Dalmas rose, Rosa 'Alfred de Dalmas' |
| Alkali dropseed, Sporobolis airoides |
| Alkanet, Anchusa azurea |
| All That Jazz rose, Rosa 'TWOadvance' |
| Allamanda, Allamanda cathartica |
| Allspice, Carolina, Calycanthus floridus |
| Almond, Flowering, Prunus glandulosa |
| Almus, Hybrid, Alnus x hybrida |
| Alpine wallflower, Erysimum linifolium |
| Althea, Shrub, Hibiscus syriacus |
| Altissimo, Rosa 'DELmur' |
| Alumroot, Hairy, Heuchera villosa |
| Alumroot, Heuchera americana |
| Amaranth, Globe, Gomphrena globosa |
| Amaranthus, Magic Fountain, Amaranthus 'Magic Fountain' |
| Amaryllis, Dutch, Amaryllis = Hippeastrum |
| Amber Queen rose, Rosa 'HARroony' |
| Ambridge rose, Rosa 'AUSwonder' |
| America rose, Rosa 'JACclam' |
| American Glory rose, Rosa 'TWOadmire' |
| American snowdrop tree, Halesia diptera |
| Amethyst flower, Browallia speciosa |
| Amiga Mia rose, Rosa 'Amiga Mia' |
| Amorpha, Indigo bush, Amorpha fruticosa |
| Amorpha, Leadplant, Amorpha canescens |
| Amur maackia, Maackia amuremsis |
| Andromeda, Marsh; Bog-rosemary, Andromeda polifolia |
| Andromeda, Mountain; Fetter-bush, Pieris floribund |
| Anemone, Anemone blanda |
| Anemone, Japanese, Anemone x hybrida |
| Anemone, Large white-flowered; Thimbleweed, Anemone riparia |
| Anemone, Meadow; Pasque flower; Wind flower, Anemone pulsatilla |
| Anemone, Rue, Anemonella thalictroides |
| Anemone, Tall; Thimbleweed, Anemone virginiana |
| Anemone, Wood; Windflower, Anemone quinquefolia; Thalictrum thalictrodes |
| Anemones, Anemone coronaria |
| Anemones, Anemone fulgens 'St. Bavo' |
| Angel Face rose, Rosa 'Angel Face' |
| Angel's Trumpet, Datura metal |
| Angelica shrub, Acanthopanax sieboldianus = Eleutherococcus sieboldianus |
| Angelica, Angelica archangelica |
| Angelica, Filmy, Angelica triquinata |
| Angelica, Japanese, Aralia elata 'Aureovariegata' |
| Anise hyssop, Agastache foeniculum |
| Anise, Pimpinella anisum |
| Anisetree, Florida, Illicum floridanum |
| Anisetree, Henry, Illicum henryi |
| Anisetree, Japanese, Illicium anisatum |
| Anisetree, Small, Illicum parviflorum |
| Annuad Delband rose, Rosa 'DELtep' |
| Antares water lily, Nymphaea 'Antares' |
| Antigua rose, Rosa 'JACtig' |
| Apache plume, Falluiga paradoxa |
| Apothecary's rose, Rosa gallica officinalis |
| Apple rose, Rosa 'Annuad Delband' |
| Appleblossom Flower Carpet rose, Rosa 'Appleblossom Flower Carpet' |
| Apricot Nectar rose, Rosa 'Apricot Nectar' |
| Apricot, Flowering, Prunus mume |
| Aralia, Fiveleaf, Acanthopanax sieboldianus = Eleutherococcus sieboldianus |
| Aralia, Variegated Japanese, Aralia elata 'Variegata' |
| Arborvitae fern, Selaginella braunii |
| Arborvitae, American, Thuja occidentalis |
| Arborvitae, Danica, Thuja occidentalis 'Danica' |
| Arborvitae, Degroot's Spire, Thuja occidentalis 'Degroot's Spire' |
| Arborvitae, Eastern, Thuja occidentalis |
| Arborvitae, Filiformis Erecta, Thuja orientalis 'Filiformis Erecta' |
| Arborvitae, Giant, Thuja plicata |
| Arborvitae, Hetz's Midget eastern, Thuja occidentalis 'Hetz Midget' |
| Arborvitae, Holmstrup, Thuja occidentalis 'Holmstrup' |
| Arborvitae, Little Gem, Thuja occidentalis 'Little Gem' |
| Arborvitae, Malonyana, Thuja occidentalis 'Malonyana' |
| Arborvitae, Minima, Thuja occidentalis 'Minima' |
| Arborvitae, Rheingold, Thuja occidentalis 'Rheingold' |
| Arborvitae, Russian, Microbiota decussata |
| Arborvitae, Russian; Cypress; Siberian cypress, Microbiota decussata |
| Arborvitae, Sherwood Moss, Thuja occidentalis 'Sherwood Moss' |
| Arborvitae, Sunkist, Thuja occidentalis 'Sunkist' |
| Arborvitae, Threadleaf, Thuja occidentalis 'Filiformis' |
| Arborvitae, Westmont, Thuja orientalis 'Westmont' |
| Arbutus, Trailing, Epigaea repens |
| Arbutus, Trailing, Epigaea repens |
| Arc de Triomphe rose, Rosa 'JACale' |
| Arc-en-Ciel water lily, Nymphaea 'Arc-en-Ciel' |
| Archangel, Yellow; Golden dead nettle, Lamium galeobdolon |
| Ardisia, Chirimen, Ardisia japonica 'Chirimen' |
| Ardisia, Coral, Ardisia crenata |
| Ardisia, Japanese, Ardisia japonica |
| Ardisia, Japanese; Maleberry, Ardisia japonica |
| Arizona rose, Rosa 'Werina' |
| Arrowhead, Lanceleaved, Sagittaria lancifolia |
| Arrowwood, Downy, Viburnum rafinesquianum |
| Arrowwood, Southern, Viburnum dentatum |
| Arrowwood, Southern, Viburnum dentatum |
| Artemisia, Artemisia absinthium |
| Artemisia, Artemisia spp. |
| Artistry rose, Rosa 'JACirst' |
| Arum, Dragon; Green dragon, Arisaema draconitum |
| Asclepias; Lanceolated milkwort, Asclepias lanceolata |
| Ash, Carolina, Fraxinus caroliniana |
| Ash, Flatspine prickly, Zanthoxylum simulans |
| Ash, Green, Fraxinus pennsylvanica |
| Ash, Pumpkin, Fraxinus profunda |
| Ash, White, Fraxinus americana |
| Aster, Calico; Starved aster, Aster lateriflorus |
| Aster, China, Callistephus chinensis |
| Aster, Climbing, Aster carolinianis |
| Aster, Crooked-stemmed, Aster prenanthoides |
| Aster, Curtis, Aster curtisii |
| Aster, Downy; White old-field aster, Aster pilosus |
| Aster, Eastern aromatic, Aster oblongifolius var. angustatus |
| Aster, False; Japanese aster, Kalimeris pinnatifida |
| Aster, Flat-topped white, Aster umbellatus |
| Aster, Heart-leafed; Common blue wood aster, Aster cordifolius |
| Aster, Heath, Aster ericoides |
| Aster, Maryland, Chrysopsis mariana |
| Aster, New England, Aster novae-angliae |
| Aster, Smooth, Aster laevis |
| Aster, Stokes', Stokesia laevis |
| Aster, White wood, Aster divaricatus |
| Aster, Whorled wood, Aster acuminatus |
| Astilbe, Astilbe x arendsii |
| Atlantic white-cedar, Chamaecyparis thyoides |
| Attraction water lily, Nymphaea 'Attraction' |
| Aucuba, Aucuba japonica |
| Audrey Hepburn rose, Rosa 'TWOadore' |
| Aunt Eliza rat's rail, Antholyza |
| Austrian Copper rose, Rosa foetida 'Bicolor' |
| Autumn Damask rose, Rosa damascena 'Bifera' |
| Autumn fern; Shaggy shield fern, Dryopteris erythrosora |
| Autumn moor grass, Sesleria autumnalis |
| Autumn snowflake, Leucojum autumnale |
| Autumn Sunset rose, Rosa 'Autumn Sunset' |
| Avens, Geum spp. |
| Awakening rose, Rosa 'Awakening' |
| Azalea, Alabama, Rhododendron alabamense |
| Azalea, Alabama, Rhododendron alabamensis |
| Azalea, Belgian Indican hybrid, Rhododendron Belgian Indican hybrids |
| Azalea, Carla hybrid, Rhododendron Carla hybrids |
| Azalea, Clammy, Rhododendron viscosum |
| Azalea, Coastal, Rhododendron atlanticum |
| Azalea, Coastal; Dwarf azalea, Rhododendron atlanticum |
| Azalea, Cumberland, Rhododendron bakeri |
| Azalea, Cumberland, Rhododendron bakeri |
| Azalea, Dwarf Indica (Gumpo), Rhododendron eriocarpum |
| Azalea, Dwarf Indica (Gumpo), Rhododendron eriocarpum |
| Azalea, Dwarf, Rhododendron atlanticum |
| Azalea, Dwarf, Rhododendron minus |
| Azalea, Encore hybrid, Rhododendron Encore hybrids |
| Azalea, Flame, Rhododendron calendulaceum |
| Azalea, Flame; Yellow honeysuckle, Rhododendron calendulaceum |
| Azalea, Florida, Rhododendron austrinum |
| Azalea, Florida, Rhododendron austrinum |
| Azalea, Gable hybrid, Rhododendron Gable hybrids |
| Azalea, Gilbralter, Rhododendron kiusianum |
| Azalea, Glenn hybrid, Rhododendron Glenn Dale hybrids |
| Azalea, Hiryu, Rhododendron obtusum |
| Azalea, Hoary, Rhododendron canescens |
| Azalea, Kaempferi, Rhododendron kaempferi |
| Azalea, Kurume, Rhododendron obtusum |
| Azalea, Oconee, Rhododendron flammeum = R. speciosum |
| Azalea, P.J.M., Rhododendron 'P.J.M.' |
| Azalea, Piedmont, Rhododendron canescens |
| Azalea, Piedmont, Rhododendron minus |
| Azalea, Piedmont; Dwarf rhododendron; Minus, Rhododendron minus |
| Azalea, Piedmont; Hoary azalea; Pinxter flower, Rhododendron canescens |
| Azalea, Pinkshell, Rhododendron vaseyi |
| Azalea, Pinkshell, Rhododendron vaseyi |
| Azalea, Pinxterbloom, Rhododendron periclymenoides = R. nidiforum |
| Azalea, Pinxterbloom; Pinxterflower, Rhododendron periclymenoides (nidiforum) |
| Azalea, Plum leaf, Rhododendron prunifolium |
| Azalea, Plumleaf, Rhododendron prunifolium |
| Azalea, Robin Hill hybrid, Rhododendron Robin Hill hybrids |
| Azalea, Roseshell, Rhododendron prinophyllum = R. roseum |
| Azalea, Roseshell; Election pink azalea, Rhododendron prinophyllum = Rhododendron roseum |
| Azalea, Royal, Rhododendron schlippenbachii |
| Azalea, Southern Indica hybrid, Rhododendron indicum |
| Azalea, Swamp, Rhododendron viscosum |
| Azalea, Swamp; Swamp honeysuckle; Clammy azalea, Rhododendron viscosum |
| Azalea, Sweet; Smooth azalea, Rhododendron arborescens |
| Azalea, Sweet; Smooth azalea, Rhododendron arborescens |