Plants — A
- Abelmoschus esculentus
- Abelmoschus moschatus
- Abies balsamea Balm Of Gilead Fir
- Abroma augustum
- Abronia fragrans Fragrant White Sand Verbena
- Abrus precatorius Crab's Eye
- Abrus pulchellus subsp. cantoniensis
- Abuta grandifolia
- Abuta grisebachii
- Abuta imene
- Abuta rufescens
- Abuta vaupesensis
- Abutilon hirtum Florida Keys Indian Mallow
- Abutilon indicum Abutilon
- Acacia Acacia sensu lato
- Acacia cebil Anadenanthera colubrina var. cebil
- Acacia concinna
- Acacia dealbata Blue Wattle
- Acacia pennata
- Acacia senegal gum arabic
- Acacia tortilis umbrella thorn
- Acalypha indica Indian Copperleaf
- Acalypha psilostachya
- Acanthophoenix rubra Mascarene Islands cabbage palm
- Acanthospermum australe Australian Starbur
- Acanthus ebracteatus Acanthus
- Acanthus ilicifolius Holly-leaved acanthus, Sea holly, Holly mangrove
- Acer saccharinum Red Maple
- Acer saccharum Sugar Maple
- Achillea
- Achillea millefolium Bloodwort
- Achyranthes aspera Chaff-flower
- Achyranthes bidentata Ruderal chaff flower
- Achyrocline saturejoides
- Acmella Spotflower
- Acmella oleracea Brazil Cress
- Acokanthera oblongifolia
- Aconitum Aconite
- Aconitum alboviolaceum Whitish-purple monk’shood
- Aconitum anthora
- Aconitum baicalense
- Aconitum barbatum Yellow monk’shood
- Aconitum × cammarum Hybrid Monk's-hood
- Aconitum carmichaelii Autumn Monkshood
- Aconitum coreanum
- Aconitum czekanovskyi
- Aconitum leucostomum Lucid Monkshood
- Aconitum lycoctonum Wolf's-Bane
- Aconitum raddeanum Big-bract monk’shood
- Aconitum soongaricum Dzungaria Monkshood
- Aconitum villosum Dissected-leaf monk’shood
- Aconitum volubile
- Acorus Calamus
- Acorus calamus Asian Sweet-Flag
- Acorus gramineus Grass-leaf sweet flag
- Acourtia wrightii Wright's desertpeony
- Acronychia pedunculata Indian Aspen
- Actaea cimicifuga
- Actaea pachypoda Baneberry
- Actaea racemosa Black Baneberry
- Adansonia digitata Africa's Upside-Down
- Adenanthera microsperma Red Sandalwood
- Adenanthera pavonina Circassian-tree
- Adenia hondala
- Adenophora stricta
- Adenophora triphylla Three-leaf ladybell
- Adiantum capillus-veneris Black Maidenhair
- Adonis aestivalis
- Adonis amurensis Amur Adonis
- Adonis annua Blooddrops
- Adonis apennina
- Adonis flammea
- Adonis turkestanica
- Adonis vernalis False Hellebore
- Adonis volgensis
- Adoxa moschatellina
- Aegiphila sellowiana
- Aegle marmelos Bael Tree
- Aegopodium podagraria Ashweed
- Aerva lanata
- Aesculus Buckeye
- Aesculus chinensis Chinese horse-chestnut
- Aesculus chinensis var. wilsonii
- Aesculus hippocastanum Conker-tree
- Aframomum
- Aframomum melegueta Grains of paradise
- Aganonerion polymorphum
- Aganosma marginata
- Agastache foeniculum Anise-hyssop
- Agastache nepetoides
- Agastache rugosa Chinese giant-hyssop
- Agastache scrophulariifolia Purple Giant Hyssop
- Agave
- Agave americana American Agave
- Ageratina glabrata
- Ageratum conyzoides
- Aglaia silvestris
- Aglaonema
- Agrimonia Agrimonies
- Agrimonia eupatoria Agrimony
- Agrimonia pilosa Hairy agrimony
- Ailanthus altissima
- Ajuga decumbens
- Ajuga genevensis Blue Bugle
- Akebia quinata Chocolate Vine
- Akebia trifoliata chocolate-vine
- Akebia trifoliata subsp. australis
- Alafia lucida
- Alangium
- Alangium chinense
- Albizia julibrissin Mimosa
- Albizia myriophylla Creeping Albizia
- Alcea rosea Black Hollyhock
- Alchemilla Lady's Mantle
- Alchemilla arvensis breakstone
- Alchemilla vulgaris
- Alchornea castaneifolia
- Alchornea glandulosa
- Alepidea peduncularis
- Aleurites moluccanus Candlenut Tree
- Alhagi maurorum Camelthorn
- Alhagi pseudalhagi
- Alisma plantago-aquatica
- Alkekengi Chinese lantern
- Alkekengi officinarum Chinese-lantern
- Allamanda cathartica
- Allamanda schottii
- Alliaria petiolata Garlic Mustard
- Allium ampeloprasum var. ampeloprasum Elephant garlic
- Allium canadense Canada Onion
- Allium cepa onion
- Allium cyrilli
- Allium drobovii
- Allium fistulosum Welsh onion
- Allium galanthum Snowdrop onion
- Allium macrostemon Chinese Garlic
- Allium microdictyon Alpine broad-leaf allium
- Allium moly Lily Leek
- Allium monanthum Korean wild chive
- Allium neapolitanum Naples garlic
- Allium oleraceum Field Garlic
- Allium oporinanthum
- Allium ramosum fragrant garlic
- Allium sativum garlic
- Allium schoenoprasum Chives
- Allium tuberosum Chinese Chives
- Allium ursinum
- Allium victorialis
- Allophylus cobbe
- Alocasia Taro
- Alocasia cucullata Buddha's hand
- Alocasia macrorrhizos
- Alocasia odora Night-scented lily
- Aloe Aloes
- Aloe arborescens Candelabra Aloe
- Aloe officinalis
- Aloe vera Aloe
- Aloysia citrodora
- Aloysia deserticola
- Alpinia Shell ginger
- Alpinia calcarata Indian Ginger
- Alpinia conchigera
- Alpinia galanga Galanga
- Alpinia hainanensis Hainan Galangal
- Alpinia officinarum Chinese-ginger
- Alpinia oxyphylla sharp-leaf galangal
- Alpinia zerumbet Shell Ginger
- Alsophila latebrosa
- Alstonia macrophylla Deviltree
- Alstonia scholaris Blackboard Tree
- Althaea Marsh-mallows
- Althaea armeniaca Armenian marshmallow
- Althaea officinalis Common Marsh-mallow
- Alysicarpus Moneywort
- Alyssum desertorum Desert Madwort
- Amaranthus spinosus Carelessweed
- Amaranthus viridis Callaloo
- Ambrosia arborescens
- Amelanchier canadensis
- Ammi bullworts
- Ammi majus Bishop's Weed
- Ammi visnaga Toothpick-plant
- Amomum
- Amomum ovoideum
- Amomum testaceum
- Amomum villosum Malabar cardamom
- Amorpha fruticosa Bastard Indigo
- Amorphophallus konjac Devil's tongue
- Amorphophallus paeoniifolius Elephant foot yam
- Ampelocissus martini
- Ampelopsis grossedentata
- Amsonia tomentosa woolly amosonia
- Anacardium occidentale Cashew
- Anacardium othonianum
- Anacyclus pyrethrum Mt. Atlas daisy
- Anadenanthera colubrina Curupay
- Anagyris foetida Bean Trefoil
- Anamirta
- Anamirta cocculus Levantnut
- Ananas comosus
- Anchusa azurea Garden Anchusa
- Anchusa officinalis common bugloss
- Andrographis paniculata Green Chiretta
- Androsace filiformis Filiform rockjasmine
- Androstephium coeruleum Androstephium caeruleum
- Anemarrhena asphodeloides
- Anemonastrum richardsonii
- Anemone Anemones
- Anemone hupehensis var. japonica
- Anemonoides nemorosa
- Anemonoides ranunculoides
- Anethum
- Anethum graveolens
- Angelica Angelicas
- Angelica archangelica
- Angelica biserrata
- Angelica dahurica Dahurian angelica
- Angelica gigas Gigantic Angelica
- Angelica japonica Coastal angelica, Japanese angelica
- Angelica keiskei Ashitaba
- Angelica polymorpha Polymorphic Angelica
- Angelica sachalinensis
- Angelica sinensis Chinese angelica
- Angiopteris evecta King Fern
- Angostura trifoliata
- Anisomeles indica Indian catmint
- Anisomeles malabarica
- Annonaceae Custard Apple
- Annona cherimola Cherimoya
- Annona muricata
- Annona squamosa Scopapel
- Antennaria dioica Catsfoot
- Anthriscus cerefolium garden chervil
- Anthriscus sylvestris Bur Chervil
- Anthyllis Kidney-vetches
- Anthyllis vulneraria Common Kidney-Vetch
- Antidesma ghaesembilla black currant-tree
- Antidesma thwaitesianum
- Apium graveolens Celery
- Apocynum cannabinum American-hemp
- Apoplanesia paniculata
- Aquilegia
- Aquilegia viridiflora Green Columbine
- Aquilegia vulgaris columbine
- Aralia californica
- Aralia continentalis Continental spikenard
- Aralia cordata Herbal aralia, East Asian angelica, East Asian spikenard
- Aralia elata Japanese Angelica Tree
- Arcangelisia flava yellow-fruit moonseed
- Archidasyphyllum diacanthoides
- Archidendron bubalinum
- Arctium
- Arctium lappa
- Arctostaphylos Bearberries
- Arctostaphylos uva-ursi Bear-grape
- Ardisia colorata
- Ardisia crenata Coralberry Tree
- Ardisia elliptica Inkberry
- Ardisia japonica Japanese cleyera
- Areca Areca nut
- Areca catechu Betel Nut Palm
- Areca vestiaria
- Arenga pinnata Black-fiber palm
- Argemone mexicana Bathurst Bur-weed
- Argentina anserina
- Argyreia nervosa
- Argyreia splendens
- Arisaema peninsulae
- Arisaema triphyllum jack-in-the-pulpit
- Aristolochia
- Aristolochia chlamydophylla
- Aristolochia clematitis Birthwort
- Aristolochia contorta Northern Dutchman's Pipe
- Aristolochia debilis slender Dutchman's pipe
- Aristolochia grandiflora Pelicanflower
- Aristolochia impresinervis
- Aristolochia tagala
- Aristolochia tuberosa
- Aristolochia tubiflora Tubeflower Dutchmanspipe
- Armoracia rusticana Horseradish
- Arnica
- Arnica montana European arnica
- Aronia melanocarpa Black Chokeberry
- Artemisia Artemisia (plant)
- Artemisia abrotanum
- Artemisia absinthium Absinth Sagewort
- Artemisia anethifolia
- Artemisia annua Annual Mugwort
- Artemisia argyi Chinese mugwort
- Artemisia austriaca Austrian Mugwort
- Artemisia californica California sagebrush
- Artemisia capillaris Capillary wormwood
- Artemisia carruthii Carruth wormwood
- Artemisia cina Levant wormseed
- Artemisia douglasiana California mugwort
- Artemisia dracunculus Tarragon
- Artemisia frigida estafiata
- Artemisia gmelinii Gmelin's wormwood
- Artemisia herba-alba Pyrenean Wormwood
- Artemisia inculta
- Artemisia kawakamii
- Artemisia maritima Sea Wormwood
- Artemisia pallens
- Artemisia princeps Japanese mugwort
- Artemisia santonicum
- Artemisia scoparia Oriental wormwood
- Artemisia selengensis Riverside wormwood
- Artemisia sericea
- Artemisia vestita
- Artemisia vulgaris Artemisia
- Artocarpus heterophyllus Jackfruit
- Artocarpus lacucha
- Arum cylindraceum
- Arum italicum Italian Lords And Ladies
- Arum maculatum Adam-and-Eve
- Asarum canadense American Wild Ginger
- Asarum europaeum
- Asarum sieboldii Seonun wild Ginger
- Asclepias curassavica
- Asimina Paw Paws
- Asimina triloba American paw paw
- Aspalathus linearis Bush-Tea
- Asparagus africanus African Asparagus
- Asparagus cochinchinensis Chinese Asparagus
- Asparagus officinalis Asparagus
- Asparagus racemosus Bottlebrush Asparagus
- Aspidistra elatior Cast iron plant
- Aspidosperma
- Aspidosperma quebracho-blanco Common White Quebracho
- Asplenium scolopendrium
- Aster ageratoides Rough-surface aster
- Aster glehnii
- Aster hayatae Korean montane aster
- Aster tataricus
- Astilbe chinensis
- Astilbe grandis Korean astilbe
- Astilbe rubra Tall False-buck's-beard
- Astilbe thunbergii Ostrich Plume
- Astragalus Astragalus (plant)
- Astragalus arenarius Arenarious Milk-vetch
- Astragalus dasyanthus yellow milkvetch
- Astragalus falcatus Russian milk-vetch
- Astragalus glycyphyllos
- Astragalus membranaceus
- Astragalus piletocladus
- Astragalus propinquus
- Astragalus zingeri
- Astrocaryum aculeatissimum
- Asystasia gangetica Asian Coromandel
- Asystasia gangetica subsp. micrantha Chinese violet
- Athyrium filix-femina Common Ladyfern
- Atractylodes lancea White atractylodes
- Atropa Belladonna
- Atropa acuminata Indian Belladonna
- Atropa bella-donna Belladonna
- Atropa pallidiflora Hyrcanian Belladonna
- Avena sativa Oat
- Averrhoa bilimbi Belimbing
- Averrhoa carambola
- Azadirachta indica Indian lilac