- Arctostaphylos hookeri
Monterey Manzanita, Hooker's Manzanita - Arctostaphylos manzanita
White-Leaf Manzanita - Arctostaphylos patula
Green-Leaf Manzanita - Arctostaphylos uva-ursi
Bearberry, Kinnikinnick - Arctotheca calendula
Cape Weed - Arctotis fastuosa
Monarch of the Veldt - Arctotis hybrida
Aurora Daisy - Ardisia crenata
Coral Berry, Hilo Holly, Hen's Eyes - Ardisia japonica
Marlberry, Japanese Ardisia - Areca catechu
Betel Nut Palm - Areca triandra
Triandra Palm - Areca vestiaria
Betel Nut Palm - Arenaria montana
Sand Wort - Arenga australasica
Australian Sugar Palm - Arenga caudata
Palm - Arenga engleri
Formosa Sugar Palm - Arenga pinnata
Sugar Palm - Argemone grandiflora
Prickly Poppy, Mexican Crepe Poppy - Argemone mexicana
Mexican Prickly Poppy - Argemone ochroleuca
Pale Mexican Prickly Poppy, Devil's Fig, Mexican Thistle, Sweet Mexican Poppy - Argemone platyceras
Crested Poppy, Rough Prickly Poppy, Chicalote Poppy - Argyranthemum foeniculaceum
Canary Island Margeurite, Teneriffe Daisy, Dill Daisy - Argyranthemum frutescens
Marguerite Daisy, Cobbity Daisy, Paris Daisy - Argyranthemum frutescens Sunray
Sunray Federation Daisy - Argyranthemum Surf City
Federation Daisy - Argyreia nervosa
Woolly Morning Glory, Elephant Creeper, Hawaiian Baby Wood Rose - Argyrocytisus battandieri
Pineapple Broom, Moroccan Broom - Argyrodendron actinophyllum
Black Booyong, Blush Tulip Oak, Black Jack, Crow's Foot Elm, Mackay Tulip Oak - Argyroderma fissum
Argyroderma - Argyroderma pearsonii
Stone Plant, Living Rock - Ariocarpus
Mexican Rock Cactus - Arisaema candidissimum
Striped Cobra Lily - Arisaema ciliatum
Himalayan Cobra Lily, Jack in the Pulpit - Arisaema ringens
Japanese Cobra Lily, Almond Turnip, Jack in the Pulpit - Arisaema tortuosum
Whipcord Cobra Lily - Arisaema triphyllum
Jack in the Pulpit, Bog Onion, Brown Dragon, Cuckoo Plant, Pepper Turnip, Priest's Pentle, Starch Wort, Three Leaf Indian Turnip, Wake Robin - Arisarum vulgare
Friar's Cowl - Aristea capitata
Blue Sceptre, Great Blue Flower Rod - Aristea capitata pink
Pink Sceptre, Great Pink Flower Rod - Aristea ecklonii
Blue Stars, Blue Corn Lily - Aristolochia gibertii
Dutchman's Pipe - Aristolochia macrophylla
Pipe Vine, Dutchman's Pipe, Broad-Leaf Birth Wort - Aristotelia australasica
Mountain Wine Berry - Aristotelia chilensis
Chilean Wine Berry, Maqui - Aristotelia serrata
Wine Berry, Makomako - Armeria maritima
Sea Thrift, Leadwort - Armeria pseudoarmeria
Plantain Thrift, Pinkball Thrift, Sea Pink - Armeria pungens
Spiny Thrift, Sea Rose, Prickly Thrift, Love Plant - Armoracia rusticana
Horseradish - Armoracia rusticana Variegata
Variegated Horseradish - Arnebia pulchra
Prophet Flower - Arnica montana
Mountain Arnica, European Arnica, Leopard's Bane - Aronia melanocarpa
Black Chokeberry - Artabotrys hexapetalus
Ylang Ylang Vine, Eagle's Claw, Climbing Ylang Ylang - Artabotrys siamensis
Climbing Ylang Ylang - Artemisia absinthium
Absinth, Wormwood - Artemisia arborescens
Tree Wormwood - Artemisia armeniaca
Wormwood - Artemisia dracunculus
Tarragon, Silky Wormwood, Biting Dragon - Artemisia dracunculus Russian
Russian Tarragon - Artemisia dracunculus Sativa
French Tarragon - Artemisia frigida
Fringed Wormwood, Prairie Sage Wort, Silky Wormwood - Artemisia ludoviciana
Western Mugwort, White Sage Brush, Silver Wormwood - Artemisia ludoviciana candicans
Dakota White Sage Brush, Louisiana Sage Wort - Artemisia ludoviciana Valerie Finnis
Valerie Finnis Wormwood, White Sage, Louisiana Sagewort - Artemisia Powis Castle
Powis Castle Wormwood - Artemisia stelleriana Boughton Silver
Beach Wormwood - Artemisia vulgaris Variegata
Variegated Mugwort - Arthropodium candidum
Dwarf Rock Lily - Arthropodium candidum Purpureum
Purple Dwarf Rock Lily - Arthropodium cirratum
Renga Renga Lily - Arthropodium cirratum Matapouri Bay
Matapouri Bay Renga Lily - Arthropodium cirratum Te Puna
Te Puna Renga Lily - Arthropodium cirratum White Knight
White Knight Renga Lily - Arthropodium milleflorum
Pale Vanilla Lily - Arthropteris tenella
Jointed Fern - Artocarpus altilis
Breadfruit - Artocarpus elasticus
Terap - Artocarpus heterophyllus
Jackfruit - Arum creticum
Cretan Arum - Arum italicum
Lords and Ladies, Italian Arum Lily, Italian Cuckoo Pint - Arum italicum Marmoratum
Marbled Lords and Ladies, Italian Arum Lily - Aruncus dioicus
Goat's Beard, Bride's Feathers - Arundina graminifolia
Bamboo Orchid - Arundinaria gigantea
Canebrake, Giant Cane, Cane Reed, Switch Cane - Arundo donax
Giant Reed, Spanish Reed, False Bamboo - Arundo donax versicolor
Variegated Giant Reed - Arytera divaricata
Rose Tamarind, Coogera, Coogara, Gap Axe - Asarina procumbens
Trailing Snapdragon, Heart Leaf Snapdragon - Asarum canadense
Canadian Wild Ginger, Canadian Snake Root - Asarum caudatum
Long-Tailed Wild Ginger, Western Wild Ginger, British Columbia Wild Ginger - Asarum caulescens
Asian Wild Ginger - Asarum europaeum
Asarabacca, Wild Ginger - Asclepias curassavica
Blood Flower, Butterfly Weed, Red Head Cotton Bush, Red Head - Asclepias curassavica Silky Gold
Yellow Butterfly Weed - Asclepias syriaca
Milkweed, Wild Cotton, Virginia Silk, Silk Weed, Cotton Weed - Asclepias tuberosa
Butterfly Milkweed, Pleurisy Root, Rolfs's Milkweed - Ascocentrum ampullaceum
Orchid - Asimina triloba
Pawpaw - Asparagus aethiopicus Myersii
Foxtail Fern, Plume Asparagus - Asparagus aethiopicus Sprengeri Group
Ground Asparagus Fern, Emerald Feather, Sprenger's Asparagus Fern - Asparagus officinalis
Asparagus - Asperula conferta
Woodruff - Asperula suberosa
Woodruff - Asperula tinctoria
Dyer's Woodruff - Asphodeline liburnica
Yellow Asphodel - Asphodeline lutea
Yellow Asphodel, Jacob's Rod, King's Spear, Yellow Jacob's Rod - Asphodelus aestivus
Tall Asphodel - Asphodelus albus
White Asphodel - Asphodelus ramosus
Branched Asphodel, Silver Rod, King's Spear - Aspidistra elatior
Cast Iron Plant - Aspidistra elatior Variegata
Variegated Cast Iron Plant - Aspidistra lurida Ginga
Spotted Cast Iron Plant, Aspidistra | - Asplenium antiquum Victoria
Ruffled Bird's Nest Fern - Asplenium australasicum
Bird's Nest Fern - Asplenium bulbiferum
Mother Spleenwort, Hen & Chicken Fern - Asplenium flabellifolium
Necklace Fern - Asplenium flaccidum
Weeping Spleenwort - Asplenium harmanii
Bird's Nest Fern - Asplenium nidus
Bird's Nest Fern - Asplenium nidus Bush Baby
Bird's Nest Fern - Asplenium oblongifolium
Shining Spleenwort - Asplenium polyodon
Willow Spleenwort, Sickle Spleenwort - Asplenium scolopendrium
Hart's Tongue Fern - Asplenium trichomanes
Maidenhair Spleenwort - Astartea ambigua
Astartea - Astartea astarteoides
False Baeckea - Astartea fascicularis
False Baeckea - Astartea Winter Pink
Astartea - Astelia australiana
Tall Astelia - Astelia banksii
Shore Astelia, Coastal Astelia, Wharawhara - Astelia chathamica
Silver Spear, Maori Flax - Astelia fragrans
Bush Flax, Bush Lily, Bush Astelia - Astelia grandis
Swamp Astelia - Astelia neocaledonica
New Caledonian Astelia - Astelia nervosa
Mountain Astelia, Kakaha - Astelia nervosa Westland
Astelia - Asteranthera ovata
Estrellita - Asteriscus sericeus
Canary Island Daisy - Asterogyne martiana
Pata de Gallo - Asterolasia asteriscophora
Lemon Star Bush - Asterolasia correifolia
Star Bush - Asterolasia hexapetala
Star Bush - Asterolasia rupestris
Star Bush - Asterotrichion discolor
Tasmanian Hemp Bush, Currajong - Astilbe arendsii Ellie
Ellie Astilbe - Astilbe arendsii Fanal
Fanal Astilbe - Astilbe arendsii Federsee
Federsee Astilbe - Astilbe arendsii Granat
Granat Astilbe - Astilbe Deutschland
Deutschland Astilbe - Astilbe Red Sentinel
Red Sentinel Astilbe - Astilbe rubra
Chinese Astilbe, Plume Flower, False Goat's Beard - Astilbe Sprite
Sprite Astilbe - Astilbe Vision
Vision Astilbe - Astilbe White Wings
White Wings Astilbe - Astilboides tabularis
Shield Leaf Rodgersia - Astrantia major
Masterwort, Tall Sanicle - Astrantia major Rosea
Pink Masterwort, Tall Sanicle - Astrantia major Rubra
Red Masterwort, Tall Sanicle - Astrantia major Sunningdale Variegated
Variegated Masterwort - Astrantia maxima
Large Masterwort - Astrocaryum mexicanum
Chocho Palm, Cohune Palm - Astroloma ciliatum
Candle Cranberry - Astroloma conostephioides
Flame Heath - Astroloma foliosum
Candle Cranberry - Astroloma humifusum
Cranberry Heath - Astroloma pinifolium
Pine Heath - Astrophytum ornatum
Bishop's Cap Cactus, Star Plant, Monk's Hood - Astrotricha asperifolia
Rough Star Hair - Astrotricha floccosa
Flannel Leaf, Woolly Star Hair - Asystasia gangetica
Ganges Bluebell, Chinese Violet, Coromandel, Creeping Foxglove - Asystasia gangetica Alba
White Ganges Bluebell, Chinese Violet, Coromandel, Creeping Foxglove - Atalaya hemiglauca
White Wood - Atherosperma moschatum
Black Sassafras - Athertonia diversifolia
White Oak - Athrotaxis laxifolia
Tasmanian Cedar - Athrotaxis selaginoides
King William Pine, King Billy Pine - Athyrium filix-femina
Lady Fern, Subarctic Lady Fern - Athyrium filix-femina Frizelliae
Tatting Fern, Beaded Lady Fern - Atractocarpus benthamianus
Native Gardenia - Atractocarpus chartaceus
Narrow Leaf Native Gardenia - Atractocarpus fitzalanii
Brown Gardenia - Atriplex amnicola
River Saltbush, Swamp Saltbush - Atriplex canescens
Four Wing Saltbush, Grey Sage Brush - Atriplex cinerea
Coast Saltbush, Grey Saltbush - Atriplex halimus
Saltbush - Atriplex hortensis
Mountain Spinach, Garden Orache, French Spinach - Atriplex hortensis Rubra
Red Mountain Spinach, Red Orache - Atriplex lentiformis
Big Saltbush, Quail Brush - Atriplex leucoclada
Saltbush - Atriplex nummularia
Old Man Saltbush, Blue-Green Saltbush - Atriplex rhagodioides
Silver Saltbush, River Saltbush - Atriplex semibaccata
Creeping Saltbush, Berry Saltbush - Atriplex stocksii
Saltbush - Atropa belladonna
Belladona, Deadly Nightshade, Devil's Cherry - Aubrieta deltoidea
Purple Rock Cress, Lilac Bush - Aubrieta deltoidea Variegata Group
Rock Cress - Aucuba japonica Crotonifolia
Spotted Laurel - Aucuba japonica Picturata
Variegated Japanese Laurel - Aucuba japonica Variegata
Gold Dust Plant, Spotted Laurel - Auranticarpa rhombifolia
Queensland Pittosporum, White Holly, Hollywood, Diamond Leaf Pittosporum - Aurinia saxatilis
Yellow Alyssum, Gold Dust, Basket of Gold - Austrocedrus chilensis
Chilean Incense Cedar - Austrocylindropuntia pachypus
Cactus - Austrocylindropuntia verschaffeltii
Cactus - Austrocylindropuntia vestita
Cotton Pole Cactus - Austroderia splendens
Coastal Toetoe - Austromyrtus dulcis
Midgen Berry - Austromyrtus tenuifolia
Narrow Leaf Myrtle - Austrostipa ramosissima
Stout Bamboo Grass, Pillar of Smoke - Austrostipa scabra falcata
Rough Spear Grass - Austrostipa verticillata
Slender Bamboo Grass, Slender Spear Grass - Avena sativa
Oats, Cat Grass - Averrhoa carambola
Carambola, Star Fruit, Star Pickle - Avicennia marina
Grey Mangrove - Avicennia marina australasica
Grey Mangrove - Azadirachta indica
Neem, Indian Lilac, Margosa Tree - Azara lanceolata
Azara - Azara microphylla
Vanilla Tree - Azara serrata
Saw-Toothed Azara - Azolla filiculoides
Fairy Moss, Pacific Mosquito Fern, Red Water Fern, Red Azolla - Azolla pinnata
Ferny Azolla, Feathered Mosquito Fern - Azorella selago
Cushion Plant - Azorella trifurcata
Cushion Plant - Azorina vidalii
Azores Bell Flower
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