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- Abelmoschus - Abelmoschus
- Abies - Abies
- Abrus - Abrus
- Abutilon - Abutilon
- Acacia - Acacia
- Acanthus - Acanthus
- Acer - Acer
- Acerola - Acerola
- Achillea - Achillea
- Achimenes - Achimenes
- Achras - Achras
- Aconitum - Aconitum napellus
- Acrocarpus - Acrocarpus
- Acroclinium - Acroclinium
- Acrocomia - Acrocomia
- Actinidia - Actinidia
- Adansonia - Adansonia
- Adenanthera - Adenanthera
- Adenium - Adenium
- Adiantum - Adiantum
- Adina - Adina
- Adonis - Adonis
- Aegle - Aegle
- Aesculus - Aesculus
- African daisy - Arcotis hybrids
- Agapanthus - Agapanthus
- Agapanthus - Agapanthus
- Agastache - Agastache
- Agave - Agave
- Ageratum - Ageratum
- Agrostemma - Agrostemma
- Ailanthus - Ailanthus
- Ajuga - Ajuga
- Akebia - Akebia
- Albizia - Albizia
- Alcea - Alcea
- Aleurites - Aleurites
- Alfalfa / Lucerne - Medicago sativa L.
- Alkaligrass - Puccinellia
- Allium - Allium
- Alnus - Alnus
- Aloe - Aloe
- Aloinopsis - Aloinopsis
- Alopecurus - Alopecurus
- Alstonea - Alstonea
- Alternanthera - Alternanthera
- Althaea - Althaea
- Alyssoides - Alyssoides
- Alyssum - Alyssum
- Amaranth - Amaranthus spp.
- Amarillo forage peanut - Arachis pintoi
- Amberboa - Amberboa
- Amelanchier - Amelanchier
- Ammi - Ammi
- Ammobium - Ammobium
- Amorpha - Amorpha
- Anacampseros - Anacampseros
- Anacardium - Anacardium
- Anagalis - Anagalis
- Anchusa - Anchusa
- Ancistrocactus - Ancistrocactus
- Anemone - Ranunculaceae spp.
- Angelica - Angelica archangelica
- Anise - Pimpinella anisum
- Annona - Annona
- Anthemis - Anthemis
- Anthriscus sylvestris - Anthriscus sylvestris
- Antigonon - Antigonon
- Antirrhinum - Antirrhinum
- Aquilegia - Aquilegia
- Arabis - Arabis
- Aralia - Aralia
- Araucaria - Araucaria
- Arbutus - Arbutus
- Archontophoenix - Archontophoenix
- Archostaphylos - Archostaphylos
- Arctotis - Arctotis
- Arecastrum - Arecastrum
- Argyreia - Argyreia
- Armeria - Armeria
- Aronia - Aronia
- Artabotrys - Artabotrys
- Artemisia - Artemisia
- Artichoke - Cynara cardunculus
- Arugula/Rocket - Eruca sativa
- Asarina - Asarina
- Asclepias - Asclepias
- Asimina - Asimina
- Asparagus - Asparagus officinalis
- Asperula - Asperula
- Aster - Callistephus chinensis
- Astilbe - Astilbe
- Astragalus - Astragalus
- Astrantia - Astrantia
- Astrophytum - Astrophytum
- Atriplex - Atriplex
- Atro - Macroptilium atropurpureum
- Aubrietia - Aubrietia
- Austrian Winter Peas - Pisum sativum subsp. arvense (L.) Poir / Lathyrus hirsutus
- Averrhoa - Averrhoa
- Avicinnia - Avicinnia
- Axillaris - Macroptyloma axillaris
- Axyris - Axyris amaranthoides
- Azadirachta - Azadirachta
- Azuki bean - Vigna angularis
- Baccharis - Baccharis
- Bactris - Bactris
- Bahiagrass - Paspalum notatum Fluegge
- Baileya - Baileya
- Balm - Melissa officinalis
- Balsam Pear - Momordica charantia
- Balsamorhiza - Balsamorhiza
- Banana - Musa, Musella
- Baptisia - Baptisia
- Barbados cherry - Malphigia
- Barley - Hordeum vulgare L.
- Basil - Ocimum basilicum
- Basil, holy (Kaprao) - Ocimum basilicum sanctum
- Bauhinia - Bauhinia
- Bay laurel - Laurus nobilis
- Beans - Name (Latin)
- Beans, adzuki - Vigna angularis (Willd.) Ohwi and Ohashi
- Beans, broad/faba - Vicia faba
- Beans, field - Phaseolus vulgaris L.
- Beans, garden - Phaseolus vulgaris L.
- Beans, jugo - Vigna subterranea
- Beans, lima - Phaseolus limensis
- Beans, Lyon - Mucuna nivea
- Beans, mung - Vigna radiata (L.) Wilczek
- Beans, runner - Phaseolus coccineus
- Beans, snake / yardlong - Vigna unguiculata subsp. sesquipedalis
- Beans, sword - Canavalia gladiata / ensiformis
- Beans, winged - Psophocarpus tetraglonolobus
- Beans, yam - Pachyrrhizus erosus
- Beaucarnea - Beaucarnea
- Beaumontia - Beaumontia
- Beet - Beta vulgaris
- Beggarweed, Florida - Desmodium tortuosum (Sw.) DC.
- Begonia - Begonia
- Belamcanda - Belamcanda
- Bellis - Bellis
- Bentgrass - Agrostis spp.
- Bentgrass, cathedral - Agrostis stolonifera x Agrostis tenuis
- Bentgrass, colonial - Agrostis capillaris L.
- Bentgrass, creeping - Agrostis stolonifera L.var. palustris (Huds) Farw.
- Bentgrass, highland - Agrostis tenuis
- Bentgrass, spike - Agrostis exarata
- Bentgrass, velvet - Agrostis canina L.
- Bentgrass, victorian - Agrostis stolonifera x Agrostis tenuis
- Berberis - Berberis
- Bergenia - Bergenia
- Berlandiera - Berlandiera
- Bermudagrass - Cynodon dactylon (L.) Pers. var. dactylon
- Bermudagrass, giant - Cynodon dactylon (L.) Pers. var. aridus Harlan and de Wet
- Betula - Betula
- Bidens - Bidens
- Bird of Paradise - Strelitzia
- Birdsfoot trefoil - Lotus corniculatus L.
- Birdwood Buffel / Grass - Cenchrus setigerus
- Bischofia - Bischofia
- Bixa - Bixa
- Bluegrass - Name (Latin)
- Bluegrass, alpine - Poa alpina ssp.alpina / vivipara
- Bluegrass, annual - Poa annua L.
- Bluegrass, Big bluegrass - Poa secunda Sherman
- Bluegrass, Canada - Poa compressa L.
- Bluegrass, creeping - Bothriochloa insculptra
- Bluegrass, Kentucky - Poa pratensis L.
- Bluegrass, rough - Poa trivialis L.
- Bluegrass, Sandberg bluegrass - Poa secunda
- Bluegrass, wood - Poa nemoralis L.
- Bluestem
- Bluestem, big - Andropogon gerardii Vitm. var. gerardii
- Bluestem, little - Schizachyrium scoparium (Michx.) Nash
- Bolusanthus - Bolusanthus
- Bombax - Bombax
- Borage - Borago officinalis
- Borecole - Brassica oleracea var. acephala
- Brachiaria
- Brachiaria, brizantha - Brachiaria brizantha
- Brachiaria, mulatto - Brachiaria mulatto
- Brachychiton - Brachychiton
- Brachycome - Brachycome
- Brahea - Brahea
- Brasilicactus - Brasilicactus
- Brazilian lucerne - Stylosanthes guianensis
- Brickellia - Brickellia
- Briza minor - Briza minor
- Broccoli - Brassica oleracea italica
- Broccoli Raab - Brassica rapa L.
- Bromegrass - Bromus spp.
- Bromegrass, California - Bromus carinatus
- Bromegrass, Columbia - Bromus vulgaris
- Bromegrass, field - Bromus arvensis L.
- Bromegrass, meadow - Bromus biebersteinii Roem. and Schult.
- Bromegrass, mountain - Bromus marginatus Steud.
- Bromegrass, smooth - Bromus inermis Leyss.
- Broomcorn - Sorghum bicolor (L.) Moench
- Broussonetia - Broussonetia
- Browallia - Browallia
- Brugmansia - Brugmansia
- Brussels Sprouts - Brassica oleracea gemmifera
- Buckwheat - Fagopyrum esculentum Moench
- Buddleia - Buddleia
- Buffalograss - Buchloe dactyloides (Nutt.)
- Buffelgrass - Cenchrus ciliaris L. / Pennisetum ciliare
- Buphthalmum - Buphthalmum
- Bupleurum - Bupleurum
- Burclover
- Burclover, California - Medicago polymorpha L.
- Burclover, spotted - Medicago arabica (L.) Huds.
- Burdock - Arctium lappa
- Burnett, little - Sanguisorba minor Scop.
- Bursera - Bursera
- Butia - Butia
- Butter leaves - Atriplex hortensis L.
- Buxus - Buxus
- Cabbage - Brassica oleracea var. capitata
- Caesalpinia - Caesalpinia
- Caisim - Brassica campestris parachinensis
- Calamintha - Calamintha
- Calceolaria - Calceolaria
- Calendula - Calendula
- Calibanus - Calibanus
- Calliandra - Calliandra
- Callicarpa - Callicarpa
- Calliopsis - Calliopsis
- Callistemon - Callistemon
- Callistephus - Callistephus
- Calluna - Calluna
- Calocedrus - Calocedrus
- Calopo - Calopogonium mucunoides
- Caltha - Caltha
- Calycanthus - Calycanthus
- Camellia - Camellia
- Campanula - Campanula
- Campsis - Campsis
- Camptotheca - Camptotheca
- Cananga - Cananga
- Canarygrass - Phalaris canariensis L. - Chamaecrista rotundifolia Wynn
- Canarygrass, reed - Phalaris arundinacea L.
- Canna - Canna
- Cannabis - Cannabis Sp.
- Canola - Brassica napus L.
- Capers - Capers
- Capparis - Capparis
- Capsella - Capsella
- Capsicum - Capsicum
- Caragana - Caragana
- Caraway - Carum carvi
- Cardamom - Elettaria, Amomum
- Cardoon - Cynara cardunculus
- Carissa - Carissa
- Carludovica - Carludovica
- Carnation - Dianthus caryophyllus
- Carnegiea - Carnegiea
- Carpetgrass - Axonopus affinis Chase / Axonopus fissifolius (Raddi) Kuhlm.
- Carpinus - Carpinus
- Carrot - Daucus carota var. sativus
- Carthamus - Carthamus tinctorius L.
- Carya - Carya
- Caryopteris - Caryopteris
- Caryota - Caryota
- Cashew - Anacardium
- Cassabanana - Sicana
- Cassia - Cassia rotundifolia
- Castanea - Castanea
- Castellanosia - Castellanosia
- Castorbean - Ricinus communis L.
- Catalpa - Catalpa
- Catananche - Catananche caerulea
- Catmint - Nepeta mussinii
- Catnip - Nepeta cataria
- Cauliflower - Brassica oleracea var. botrytis
- Ceanothus - Ceanothus
- Cedrus - Cedrus
- Ceiba - Ceiba
- Celastrus - Celastrus
- Celeriac - Apium graveolens var. rapaceum
- Celery - Apium graveolens
- Celosia - Celosia
- Celtis - Celtis
- Celtuce - Lactuca sativa var. asparagina
- Centaurea - Centaurea
- Centipede - Eremochloa ophiuroides Hack.
- Centro - Centrosema pascuorum / pubescens
- Cephalanthus - Cephalanthus
- Cephalocereus - Cephalocereus
- Cephalocleistocactus - Cephalocleistocactus
- Cephalophyllum - Cephalophyllum
- Cephalotaxus - Cephalotaxus
- Cerastium - Cerastium tomentosum
- Ceratonia - Ceratonia
- Cercidiphyllum - Cercidiphyllum
- Cercidium - Cercidium
- Cercis - Cercis
- Cercocarpus - Cercocarpus
- Cereus - Cereus
- Chaenomeles - Chaenomeles
- Chamaecrista - Chamaecrista
- Chamaecyparis - Chamaecyparis
- Chamaedorea - Chamaedorea
- Chamaerops - Chamaerops
- Chamomile - Matricaria chamomilla / recutita
- Chayote - Sechium edule
- Cheiranthus - Cheiranthus
- Cheiridopsis - Cheiridopsis
- Chervil - Anthriscus cerefolium
- Chickasaw lima bean - Canavalia ensiformis
- Chickpea - Cicer arietinum L.
- Chicory - Cichorium intybus
- Chicory, Hearted Chicory, green types
- Chicory, Hearted Chicory, red types (Radicchio)
- Chicory, Witloof
- Chimonanthus - Chimonanthus
- Chinese cabbage, heading (Pe Tsai) - Brassica pekinensis
- Chinese cabbage, non heading (Pak Choi) - Brassica campestris var. chinensis
- Chinese celery - Apium graveolens
- Chinese chives - Allium tuberosum
- Chinese flat cabbage - Brassica chinensis var. rosularis
- Chinese kale - Brassica oleracea alboglabra
- Chinese leek - Allium tuberosum Rottler
- Chinese mustard - Brassica juncea
- Chinese radish - Raphanus sativus
- Chinese spinach - Amaranthus tricolor
- Chives - Allium schoenoprasum
- Chives, garlic - Allium tuberosum
- Chorisia - Chorisia
- Choysum - Brassica campestris parachinensis
- Chrysalidocarpus - Chrysalidocarpus
- Chrysanthemum - Chrysanthemum coronarium
- Chrysophyllum - Chrysophyllum
- Cichorium intybus - Cichorium intybus
- Cima di Rapa - Brassica campestris
- Cineraria - Cineraria
- Cinnamomum - Cinnamomum
- Cirsium - Cirsium
- Cissus - Cissus
- Cistus - Cistus
- Citrus - Citrus
- Clarkia - Clarkia
- Claytonia - Claytonia perfoliata
- Cleistocactus - Cleistocactus
- Clematis - Clematis
- Cleome - Cleome
- Clerodendron - Clerodendron
- Cleyera - Cleyera
- Clitoria pea - Clitoria ternatea
- Clover
- Clover, alsike - Trifolium hybridum L.
- Clover, alyce - Alysicarpus vaginalis (L.) DC.
- Clover, arrowleaf - Trifolium vesiculosum Savi
- Clover, balansa - Trifolium balansae
- Clover, berseem - Trifolium alexandrinum L.
- Clover, cluster - Trifolium glomeratum L.
- Clover, crimson - Trifolium incarnatum L.
- Clover, desert grassland - Petalostemum spp.
- Clover, giant shaftal - Trifolium clusii
- Clover, Kenya white - Trifolium semipilosum Fresen.
- Clover, ladino - Trifolium repens L.
- Clover, Persian - Trifolium resupinatum L.
- Clover, red - Trifolium pratense L.
- Clover, rose - Trifolium hirtum L.
- Clover, strawberry - Trifolium fragiferum L.
- Clover, subterranean - Trifolium subterraneum L.
- Clover, white - Trifolium repens L.
- Coccolaba - Coccolaba
- Cocksfoot - Dactylis glomerata
- Coffea - Coffea
- Coleus - Coleus
- Collards - Brassica oleracea acephala
- Collinsia - Collinsia
- Colutea - Colutea
- Congo grass - Brachiaria ruziziensis
- Conophytum - Conophytum
- Convolvulus - Convolvulus
- Convolvulus (Kangkong) - Ipomoea aquatica
- Copernicia - Copernicia
- Cordia - Cordia
- Cordyline - Cordyline
- Coreopsis - Coreopsis
- Coriander (cilantro) - Coriandrum sativum
- Corn salad / Mache - Valerianella locusta
- Cornus - Cornus
- Coronilla - Coronilla
- Corryocactus - Corryocactus
- Corylus - Corylus
- Coryphantha - Coryphantha
- Cosmos - Cosmos
- Costus - Costus
- Cotinus - Cotinus
- Cotoneaster - Cotoneaster
- Cotton - Gossypium spp.
- Cotula - Cotula
- Couchgrass
- Couchgrass, blue - Digitaria didactyla
- Couchgrass, Indian - Bothriochloa pertusa
- Cowpea / Southern pea - Vigna unguiculata (L.) Walp. subsp. unguiculata
- Crassula - Crassula
- Crataegus - Crataegus
- Crescentia - Crescentia
- Cress - Lepidium sativum
- Crotalaria - Crotalaria
- Crotalaria, Showy rattlebox - Crotalaria spectabilis
- Crotalaria, sunn hemp - Crotalaria juncea L.
- Crownvetch - Coronilla varia L.
- Cryptomeria - Cryptomeria
- Cryptostegia - Cryptostegia
- Cucumber - Cucumis sativa
- Cudraina - Cudraina
- Cumin - Cuminum cyminum
- Cunningham leucaena - Leucaena leucocephala
- Cuphea - Cuphea
- Cupressus - Cupressus
- Cyamopsis - Cyamopsis
- Cycas - Cycas
- Cynoglossum - Cynoglossum
- Cyperus - Cyperus
- Cyphomandra - Cyphomandra
- Cyrtostachys - Cyrtostachys
- Cytisus - Cytisus
- Dahlia - Dahlia
- Dalbergia - Dalbergia
- Dalea - Dalea
- Dallisgrass - Paspalum dilatatum Poir.
- Dandelion - Taraxacum officinale
- Daphne - Daphne
- Dasylirion - Dasylirion
- Dasyliron - Dasyliron
- Datura - Datura
- Datura - Datura
- Davidia - Davidia
- Decaisna - Decaisna
- Delonix - Delonix
- Delosperma - Delosperma
- Delphinium - Delphinium
- Denmoza - Denmoza
- Derris - Derris
- Desmanthus - Desmanthus urgatus
- Desmodium - Desmodium spp.
- Desmoncus - Desmoncus
- Dianthus - Dianthus
- Diascea - Diascea
- Dichondra - Dichondra repens Forst. and Forst. f.
- Dicranopteris - Dicranopteris linearis
- Dictyosperma - Dictyosperma
- Didymaotus - Didymaotus
- Diervilla - Diervilla
- Dietes - Dietes
- Digit grass - Digitaria smutsii
- Digitalis - Digitalis
- Dill - Anethum graveolens
- Dillenia - Dillenia
- Dimorphoteca - Dimorphoteca
- Dioon - Dioon
- Dioon - Dioon
- Dioscorea - Dioscorea
- Diospyros - Diospyros
- Dipsacus - Dipsacus
- Dizygotheca - Dizygotheca
- Dolichothele - Dolichothele
- Doronichum - Doronichum
- Dorotheanthus - Dorotheanthus
- Dovyalis - Dovyalis
- Doxanthus - Doxanthus
- Dracaena - Dracaena
- Dracocephalum - Dracocephalum
- Dropseed, sand - Sporobolus cryptandrus (Torr.) A. Gray
- Dusty Miller - Centaurea cineraria
- Dypsis - Dypsis
- Ebenopsis - Ebenopsis
- Eccremocarpus - Eccremocarpus
- Echalion - Allium cepa
- Echinacea - Echinacea spp.
- Echinacea, narrowleaf - Echinacea angustifolia
- Echinacea, purple - Echinacea purpurea
- Echinocactus - Echinocactus
- Echinocereus - Echinocereus
- Echinomastus - Echinomastus
- Echinops - Echinops
- Echinopsis - Echinopsis
- Echium - Echium
- Eggplant (Brinjal) - Solanum melongena
- Elaeagnus - Elaeagnus
- Elaeis - Elaeis
- Elaeocarpus - Elaeocarpus
- Elettaria - Elettaria
- Elshotzia - Elshotzia
- Emmer - Triticum dicoccon Schrank
- Endive - Cichorium endivia spp.
- Engelmannia - Engelmannia
- Enterolobium - Enterolobium
- Epazote - Chenopodium ambrosioides
- Ephedra - Ephedra
- Erica - Erica
- Erigeron - Erigeron
- Eriobotrya - Eriobotrya
- Eriocactus - Eriocactus
- Eriogonum - Eriogonum
- Eriophyllum - Eriophyllum
- Eryngium - Eryngium
- Eryngo - Eryngium foetidum
- Erysimum - Erysimum
- Erythrina - Erythrina
- Eschscholzia - Eschscholzia
- Escontria - Escontria
- Espostoa - Espostoa
- Etlingera - Etlingera
- Eucalyptus - Eucalyptus
- Eugenia - Eugenia
- Euonymus - Euonymus
- Eupatorium - Eupatorium
- Euphorbia - Euphorbia
- Eustoma - Eustoma
- Exacum - Exacum
- Exochorda - Exochorda
- Fagrea - Fagrea
- Fagus - Fraxinus
- Faucaria - Faucaria
- Feijoa - Feijoa
- Felicia - Felicia
- Fenestraria - Fenestraria
- Fennel - Foeniculum vulgare var. dulce
- Fenugreek - Trigonella foenum-graecum
- Ferocactus - Ferocactus
- Fescue
- Fescue, Blue fescue - Festuca ovina glauca
- Fescue, chewings - Festuca rubra L. subsp. commutata Gaud
- Fescue, creeping red - Festuca rubra L. subsp. rubra
- Fescue, hair - Festuca tenuifolia Sibth.
- Fescue, hard - Festuca brevipila Tracey / Festuca ovina duriuscula
- Fescue, Idaho fescue - Festuca idahoensis
- Fescue, meadow - Festuca pratensis Huds.
- Fescue, sheep - Festuca ovina L. var. ovina
- Fescue, slender - Festuca rubra L. subsp. trichophylla
- Fescue, tall - Festuca arundinacea Schreb.
- Festulolium - Italian Ryegrass x Meadow Fescue
- Feverfew - Tanacetum parthenium
- Ficus - Ficus
- Filicium - Filicium
- Filipendula - Filipendula
- Firmiana - Firmiana
- Flax - Linum usitatissimum
- Flower sprout - Brassica oleracea gemmifera x Brassica napus
- Fockea - Fockea
- Forage
- Forage, beet - Beta vulgaris L. subsp. vulgaris
- Forage, chicory - Cichorium intybus L.
- Forage, kale - Brassica oleracea L. var. acephala DC.
- Forage, mixes
- Forage, radish - Raphanus sativus L.
- Forage, rapeseed - Brassica napus spp.
- Forage, sorghum - Sorghum
- Forage, turnip - Brassica rapa L. subsp.rapa
- Forsythia - Forsythia
- Fouquiera - Fouquiera
- Foxtail - Setaria spp.
- Foxtail, green - Setaria viridis
- Foxtail, meadow - Alopecurus pratensis L.
- Foxtail, water - Alopecurus geniculatus
- Foxtail, yellow - Setaria lutescens
- Fraxinus - Fraxinus
- French spinach - Atriplex hortensis L.
- Fritha - Fritha
- Fuchsia - Fuchsia
- Gaillardia - Gaillardia
- Galletagrass - Hilaria jamesii (Torr.) Benth.
- Galphimia - Galphimia
- Gamba grass - Andropogon gayanis
- Garlic - Allium sativum
- Gasteria - Gasteria
- Gaultheria - Gaultheria
- Gaura - Gaura
- Gazania - Gazania
- Geonoma - Geonoma
- Geranium - Geranium
- Gerbera - Gerbera
- Geum - Geum
- Gherkin - Cucumis anguria
- Gibbaeum - Gibbaeum
- Gillia - Gillia
- Ginkgo - Ginkgo
- Gleditsia - Gleditsia
- Gliricidia - Gliricidia
- Gloriosa - Gloriosa
- Gloxinia - Sinningia speciosa
- Glycine - Neonotonia wightii
- Godetia - Godetia
- Gomphrena - Gomphrena
- Gourd
- Gourd, ash - Benincasa hispida
- Gourd, bitter - Momordica charantia
- Gourd, black seeded - Cucurbita ficifolia
- Gourd, bottle - Lagenaria siceraria
- Gourd, calabash - Lagenaria leucantha
- Gourd, haired - Benincasa hispida
- Gourd, ridge - Luffa acutangula
- Gourd, serpent - Trichosanthes anguina
- Gourd, snake - Trichosanthes cucumerina var. anguina
- Gourd, sponge - Luffa aegyptica/cylindrica
- Gourd, tinda - Citrullus vulgaris
- Gourd, wax - Benincasa hispida
- Grama - Bouteloua spp.
- Grama, blue - Bouteloua gracilis (Kunth) Steud.
- Grama, side-oats - Bouteloua curtipendula (Minchx) Torr.
- Grevillea - Grevillea
- Guaiacum - Guaiacum
- Guar - Cyamopsis tetragonoloba (L.) Taub.
- Gymnocalycium - Gymnocalycium
- Gymnocladus - Gymnocladus
- Gypsophila - Gypsophila
- Haageocereus - Haageocereus
- Haematoxylon - Haematoxylon
- Halesia - Halesia
- Hamamelis - Hamamelis
- Hamatocactus - Hamatocactus
- Hardinggrass - Phalaris stenoptera Hack.
- Harpephyllum - Harpephyllum
- Harrisia - Harrisia
- Haworthia - Haworthia
- Hedera - Hedera
- Hedychium - Hedychium
- Hedysarum - Hedysarum
- Helenium - Helenium
- Heliamthemum - Heliamthemum
- Helianthocereus - Helianthocereus
- Helianthus - Helianthus annuus L.
- Helichrysum - Helichrysum
- Heliconia - Heliconia
- Heliopsis - Heliopsis
- Heliosperma - Heliosperma
- Heliotrope - Heliotrope
- Helipterum - Helipterum
- Hemerocallis - Hemerocallis
- Hemp - Cannabis sativa
- Hernandia - Hernandia
- Hesperaloe - Hesperaloe
- Hesperis - Hesperis
- Heterotheca - Heterotheca
- Heuchera - Heuchera
- Hibiscus - Hibiscus
- Hippophae - Hippophae
- Hollyhock - Hollyhock
- Homalocephala - Homalocephala
- Hovenia - Hovenia
- Howea - Howea
- Humulus - Humulus
- Hunnemannia - Hunnemannia fumariifolia
- Hura - Hura
- Hyacinth bean - Dolichos lablab / Lablab purpureus
- Hydrangea - Hydrangea
- Hylocereus - Hylocereus
- Hymenachnie - Hymenachnie amplexicaulis
- Hypericum - Hypericum
- Hypoestes - Hypoestes
- Hyssop - Hyssopus officinalis
- Hyssopus - Hyssopus
- Iberis - Iberis
- Ibervillea - Ibervillea
- Ilex - Ilex
- Impatiens - Impatiens
- Indian couch - Bothriochloa pertusa
- Indiangrass, yellow - Sorghastrum nutans (L.) Nasch
- Indigo, hairy - Indigofera hirsuta L.
- Indigofera - Indigofera
- Inula - Inula
- Ipomoea - Ipomoea
- Ipomoea x multifida - Ipomoea x multifida
- Ipomopsis - Ipomopsis
- Iresine - Iresine
- Iriartea - Iriartea
- Iris - Iris
- Jacaranda - Jacaranda
- Jackbean - Canavalia ensiformis
- Japanese lawngrass - Zoysia japonica Steud.
- Jarragrass - Digitaria milanjiana
- Jatropha - Jatropha
- Jicama - Jicama
- Johnsongrass - Sorghum halepense (L.) Pers.
- Jubaea - Jubaea
- Juglans - Juglans
- Jujube - Zizyphus
- Juniperus - Juniperus
- Kalanchoe - Kalanchoe
- Kale - Brassica oleracea
- Kenaf - Hibiscus cannabinus L.
- Khaya - Khaya
- Kigelia - Kigelia
- Kikuyu - Pennisetum clandestinum
- Kiwifruit - Actinidia
- Knautia - Knautia
- Kniphofia - Kniphofia
- Kochia - Kochia
- Kochia, forage - Kochia prostrata (L.) Schrad.
- Koeleria - Koeleria
- Koelreuteria - Koelreuteria
- Kohlrabi - Brassica oleracea var. gongylodes
- Kolkwitzia - Kolkwitzia
- Komatsuna - Brassica campestris rapifera
- Koronvivia - Brachiria humidicola
- Kudzu - Pueraria montana (Lour.) Merr. var. lobata (Willd.) Maesen and S. Almeida
- Laburnum - Laburnum
- Lagerstroemia - Lagerstroemia
- Lagurus - Lagurus
- Lantana - Lantana
- Lapidaria - Lapidaria
- Larix - Larix
- Larkspur - Consolida ambigua
- Lasthenia - Lasthenia
- Lathyrus - Lathyrus
- Laurentia - Laurentia
- Laurus - Laurus
- Lavandula - Lavandula
- Lavatera - Lavatera
- Lavender - Lavendula angustifolia
- Layia - Layia
- Leaf mustard - Brassica juncea cernea
- Leafy greens - Name (Latin)
- Leea - Leea
- Leek - Allium porrum
- Lemaireocereus - Lemaireocereus
- Lemon balm - Melissa officinalis
- Lemon grass - Cymbopogan citratus
- Lemon grass, Indian - Cymbopogon flexuosus
- Lentil - Lens culinaris Medik.
- Leontopodium - Leontopodium
- Leptosiphon - Leptosiphon
- Lespedeza - Lespedeza
- Lespedeza, Chinese - Lespedeza cuneata (Dum.-Cours.) G. Don
- Lespedeza, Korean - Kummerowia stipulacea (Maxim.) Makino
- Lespedeza, sericea - Lespedeza sericea
- Lespedeza, Siberian - Lespedeza juncea (L.f.) Pers.
- Lespedeza, striate - Kummerowia striata (Thunb.) Schindler
- Lettuce - Lactuca sativa
- Leucaena - Leucaena leucocephala
- Leuchtenbergia - Leuchtenbergia
- Leucodendron - Leucodendron
- Leucosperma - Leucosperma
- Leucosperma - Leucosperma
- Leycesteria - Leycesteria
- Liatris - Liatris
- Licuala - Licuala
- Ligularia - Ligularia
- Ligustrum - Ligustrum
- Lilium - Lilium
- Limnanthes - Limnanthes
- Limonium - Limonium
- Linanthus - Linanthus
- Linaria - Linaria
- Linaris - Linaris
- Linum - Linum
- Liquidembar - Liquidembar
- Liriodendron - Liriodendron
- Lisianthus - Lisianthus
- Lithops - Lithops
- Livistona - Livistona
- Lobelia - Lobelia
- Lobivia - Lobivia
- Lobularia - Lobularia
- Lonas - Lonas
- Lonicera - Lonicera
- Loquat - Eriobotrya
- Lotononis - Lotononis bainesii
- Lotus - Lotus corniculatus / Lotus pedunculatus
- Lovage - Levisticum officinalis
- Lovegrass
- Lovegrass, sand - Eragrostis trichodes (Nutt.) Wood
- Lovegrass, weeping - Eragrostis curvula (Schrad.) Nees
- Luffa - Luffa spp.
- Luffa, angled - Luffa acutangula
- Luffa, smooth - Luffa aegyptica/cylindrica
- Lunaria - Lunaria
- Lupine - Lupinus spp.
- Lupine, blue - Lupinus angustifolius L.
- Lupine, white - Lupinus albus L.
- Lupine, yellow - Lupinus luteus L.
- Lychnis - Lychnis
- Lythrum - Lythrum
- Macadamia - Macadamia
- Machaeranthera - Machaeranthera
- Maclura - Maclura
- Macrozamia - Macrozamia
- Magnolia - Magnolia
- Mahagony - Swietenia
- Mahonia - Mahonia
- Maize / Corn - Zea mays L.
- Malabar spinach - Basella rubra
- Malay apple - Syzygium
- Malcomia - Malcomia
- Maleophora - Maleophora
- Malope - Malope
- Malphigia - Malphigia
- Malus - Malus
- Mammillaria - Mammillaria
- Mangrove - Rhiziphora
- Manihot - Manihot
- Manilagrass - Zoysia matrella (L.) Merr.
- Marigold - Tagetes spp.
- Marigold, Mexican - Tagetes minuta
- Marigold - Tagetes erecta, patula
- Marjoram - Origanum majorana
- Matricaria - Matricaria
- Matthiola - Matthiola
- Meadow foxtail - Alopecurus pratensis L.
- Meconopsis - Meconopsis
- Medic
- Medic, barrel - Medicago truncatula
- Medic, black - Medicago lupulina L.
- Medic, bur - Medicago polymorpha L.
- Medic, disk - Medicago tornata
- Medic, gama - Medicago rugosa
- Medic, murex - Medicago murex
- Medic, snail - Medicago scutellata
- Medic, strand / water - Medicago littoralis
- Medicago - Medicago
- Melampodium - Melampodium
- Melandrium - Melandrium
- Melia - Melia
- Melica - Melica
- Melilotus - Melilotus
- Melocactus - Melocactus
- Melon - Cucumis melo
- Melon, bitter - Momordica charantia
- Melon, pickling - Cucumis melo var. conomon
- Melon, winter - Benincasa hispida
- Mentzelia - Mentzelia
- Mesembryanthemum - Mesembryanthemum
- Mespilus - Mespilus
- Metasequoia - Metasequoia
- Michelia - Michelia
- Milgarra Pea - Clitoria ternatea
- Milk thistle - Silybum marianum
- Milkvetch / Cicer milkvetch - Astragalus cicer L.
- Milkvetch, Chinese - Astragalus sinicus L
- Millet
- Millet, browntop - Brachiaria ramosa (L.) Stapf
- Millet, finger - Eleusine corocana
- Millet, foxtail - Setaria italica (L.) Beauv.
- Millet, Japanese - Echinochloa frumentacea Link
- Millet, pearl - Pennisetum glaucum (L.) R. Br.
- Millet, proso - Panicum miliaceum L.
- Millet, Shirohie - Echinochloa crus-galli
- Mimosa - Mimosa
- Mimosa - Mimosa
- Mimulus - Mimulus
- Mina - Mina
- Mirabilis - Mirabilis
- Miracle fruit - Synsepalum
- Mitsuba - Cryptotaenia japonica
- Mizuna - Brassica japonica
- Molassesgrass - Melinis minutiflora Beauv.
- Molinaria - Molinaria
- Moluccella / Bells of Ireland - Moluccella laevis
- Monarda - Monarda
- Monardella - Monardella
- Monstera - Monstera
- Morinda - Morinda
- Moringa - Moringa
- Morning Glory - Convolvulaceae spp.
- Morus - Morus
- Mountain spinach - Atriplex hortensis L.
- Mucuna - Mucuna
- Murraya - Murraya
- Musa - Musa
- Musella - Musella
- Mustard - Brassica juncea
- Mustard, black - Brassica nigra (L.) Koch / Sinapsis nigra
- Mustard, India - Brassica juncea (L.) Czernj. and Coss
- Mustard, leaf - Brassica juncea cernua/integlifolia
- Mustard, water - Brassica campestris L. ssp. rapifera var. laciniifolia
- Mustard, water - Brassica campestris L. ssp. rapifera var. laciniifolia
- Mustard, white - Brassica hirta / Sinapis alba L.
- Myosotis - Myosotis
- Myrciara - Myrciara
- Myrtillocactus - Myrtillocactus
- Myrtus - Myrtus
- Name (English) - Dypsis
- Nandina - Nandina
- Nannorrhops - Nannorrhops
- Napiergrass - Pennisetum purpureum Schumach.
- Nasturtium - Nasturtium
- Needlegrass
- Needlegrass, green - Stipa viridula Trin.
- Needlegrass, lemon's - Stipa lemonii
- Neem - Azadirachta
- Nelumbo - Nelumbo
- Nemesia - Nemesia
- Nemophila - Nemophila
- Neobuxbaumia - Neobuxbaumia
- Neocardenasia - Neocardenasia
- Neodypsis - Neodypsis
- Neonotonia - Neonotonia
- Neoporteria - Neoporteria
- Nepeta - Nepeta
- Nerium - Nerium
- New Zealand spinach - Tetragonia tetragonoides
- Nicandra - Nicandra
- Nicolaia - Nicolaia
- Nicotiana - Nicotiana
- Nierembergia - Nierembergia
- Nigella - Nigella
- Nolana - Nolana
- Notocactus - Notocactus
- Nyctanthes - Nyctanthes
- Nyssa - Nyssa
- Oat - Avena byzantina C. Koch, Avena nuda L., Avena sativa L.
- Oat, bristle - Avena strigosa
- Oat, common - Avena byzantina C. Koch, Avena nuda L., Avena sativa L.
- Oatgrass
- Oatgrass, california - Danthonia californica
- Oatgrass, tall - Arrhenatherum elatius (L.) J.S. Presl and K.B. Presl
- Ochna - Ochna
- Ochroma - Ochroma
- Oemleria - Oemleria
- Oenothera - Oenothera
- Okra - Abelmoschus esculentus
- Olea - Olea
- Onion - Allium cepa, A. fistulosum
- Onobrychis viciifolia - Onobrychis viciifolia
- Operculi - Operculi
- Opuntia - Opuntia
- Orach - Atriplex hortensis L.
- Orbignia - Orbignia
- Orchardgrass - Dactylis glomerata L.
- Oregano - Origanum vulgare L.
- Oregano, Greek - Origanum vulgare hirtum
- Orlaya - Orlaya
- Ornithogalum - Ornithogalum
- Orocereus - Orocereus
- Oroxylum - Oroxylum
- Osteospermum - Osteospermum
- Ostrya - Ostrya
- Oxypetalum - Oxypetalum caeruleum
- Pachycereus - Pachycereus
- Pachypodium - Pachypodium
- Pachyrhizus - Pachyrhizus
- Paliurus - Paliurus
- Panax - Panax
- Pandanus - Pandanus
- Panicgrass - Panicum spp.
- Panicgrass, Bambatsii - Panicum coloratum
- Panicgrass, blue - Panicum antidotale Retz
- Panicgrass, Coloni - Panicum maximum
- Panicgrass, Gatton - Panicum maximum
- Panicgrass, green - Panicum maximum Jacq. var. trichoglume Robyns
- Panicgrass, Guinea - Panicum maximum
- Panicgrass, Hamil - Panicum maximum
- Panicgrass, Lax - Panicum laxum
- Pansy - Viola x wittrockiana
- Papaver - Papaver
- Papaya - Carica
- Paragrass - Brachiaria mutica
- Parkia - Parkia
- Parkinsonia - Parkinsonia
- Parmenteria - Parmenteria
- Parodia - Parodia
- Parsley - Petroselinum crispum
- Parsnip - Pastinaca sativa
- Parthenocissus - Parthenocissus
- Paspalum
- Paspalum, atra - Paspalum atratum
- Paspalum, broadleaf - Paspalum wettsteinii
- Paspalum, plicatulum - Paspalum plicatulum
- Passiflora - Passiflora
- Paulownia - Paulownia
- Paurotis - Paurotis
- Peanut / Groundnut - Arachis hypogaea L.
- Peanut / Groundnut, forage - Arachis pintoi
- Peas, field - Pisum sativum L.
- Peas, forage - Pisum sativum L.
- Peas, garden - Pisum sativum L.
- Pedalium - Pedalium
- Pelargonium - Pelargonium
- Peniocereus - Peniocereus
- Pennisetum - Pennisetum
- Pennyroyal - Mentha pulegium
- Penstemon - Penstemon
- Pentalostemon - Pentalostemon
- Pentas - Pentas
- Pepper - Capsicum annuum
- Peppermint - Menta piperita vulgaris
- Perilla - Perilla crispa
- Petrea - Petrea
- Petunia - Petunia
- Phacelia - Phacelia tanacetifolia
- Phacelia - Phacelia
- Phalaris - Phalaris aquatica
- Philadelphus - Philadelphus
- Phillyrea - Phillyrea
- Philodendron - Philodendron
- Phlomis - Phlomis
- Phlox - Phlox
- Phoenix - Phoenix
- Phormium - Phormium
- Phyllanthus - Phyllanthus
- Physalis - Physalis
- Physocarpus - Physocarpus
- Phytolacca - Phytolacca
- Picea - Picea
- Pigeongrass, purple - Setaria incrassata
- Pigeonpea - Cajanus caja
- Pimenta - Pimenta
- Pinus - Pinus
- Piper - Piper
- Pistacia - Pistacia
- Pittosporum - Pittosporum
- Plantago lanceolata - Plantago lanceolata
- Platanus - Platanus
- Platycodon - Platycodon
- Plectranthus - Plectranthus
- Pleiospilos - Pleiospilos
- Plumbago - Plumbago
- Plumeria - Plumeria
- Plumosus - Plumosus
- Poa supina - P. annua var. supina (Schrad.) Neuman
- Podocarpus - Podocarpus
- Poinciana - Poinciana
- Polemonium - Polemonium
- Polygonum - Polygonum
- Poncirus - Poncirus
- Populus - Populus
- Portulaca - Portulaca
- Potato - Solanum tuberosum
- Potentialla - Potentialla
- Potentilla - Potentilla
- Prairiegrass - Bromus catharticus Vahl
- Primrose - Primula vulgaris
- Primula - Primula
- Pritchardia - Pritchardia
- Prosopis - Prosopis
- Protea - Protea
- Prunella - Prunella
- Prunus - Prunus
- Pseudotsuga - Pseudotsuga
- Psidium - Psidium
- Psophocarpus - Psophocarpus
- Pterocarpus - Pterocarpus
- Pterocarya - Pterocarya
- Ptychosperma - Ptychosperma
- Pueraria - Pueraria
- Puero - Pueraria phaseoloides
- Puerria - Puerria
- Pumpkin - Cucurbita spp.
- Pumpkin, Styrian - Cucurbita pepo styriaca
- Punica - Punica
- Purslane - Claytonia perfoliata
- Puya - Puya
- Pycnanthemum - Pycnanthemum
- Pyrethrum - Pyrethrum
- Pyrrhocactus - Pyrrhocactus
- Pyrrus - Pyrrus
- Quackgrass - Agropyron repens
- Quercus - Quercus
- Radermachera - Radermachera
- Radicchio - Cichorium intybus
- Radish - Raphanus sativus
- Ranunculus - Ranunculus
- Rapeseed/Colza - Brassica napus spp.
- Rapeseed/Colza, annual - Brassica napus L. var. annua Koch
- Rapeseed/Colza, bird - Brassica rapa L. subsp. rapa
- Rapeseed/Colza, edible - Brassica campestris oleifera
- Rapeseed/Colza, forage - Brassica napus spp.
- Rapeseed/Colza, swede - Brassica rapa L. subsp. oleifera
- Rapeseed/Colza, turnip - Brassica rapa L. subsp. silvestris (Lam.) Janchen
- Rapeseed/Colza, winter - Brassica napus L. var. biennis (Schubl. and Mart.) Reichb.
- Ratibida - Ratibida
- Ravenala - Ravenala
- Ravenea - Ravenea
- Rebutia - Rebutia
- Redtop - Agrostis gigantea Roth
- Rescuegrass - Bromus catharticus Vahl
- Reseda - Reseda
- Rhamnus - Rhamnus
- Rhizophora - Rhizophora
- Rhodanthe - Rhodanthe
- Rhodesgrass - Chloris gayana Kunth
- Rhodochiton - Rhodochiton
- Rhododendron - Rhododendron
- Rhubarb - Rheum rhabarbarum
- Rhus - Rhus
- Ribes - Ribes
- Rice - Oryza sativa L.
- Ricegrass, Indian - Oryzopsis hymenoides (Roem. and Schult.) Ricker
- Ricinus - Ricinus
- Robinia - Robinia
- Rootstock
- Rosa - Rosa
- Rosemary - Rosemarinus officinalis
- Roseocereus - Roseocereus
- Roughpea - Lathyrus hirsutus L.
- Roystonea - Roystonea
- Rubus - Rubus
- Rudbeckia - Rudbeckia
- Rue - Ruta graveolens
- Rutabaga - Brassica napus napobrassica
- Rye - Secale cereale L.
- Rye, mountain - Secale strictum (K.B. Presl) K.B. Presl subsp. strictum
- Ryegrass
- Ryegrass, annual or Italian - Lolium multiflorum Lam.
- Ryegrass, hybrid - Lolium x boucheanum Kunth.
- Ryegrass, intermediate - Lolium x hybridum Hausskn.
- Ryegrass, perennial - Lolium perenne L.
- Ryegrass, Westerwold - Lolium multiflorum westerwoldicum
- Ryegrass, Wimmera - Lolium rigidum Gaud.
- Sabal - Sabal
- Sabi grass - Urochloa mosambicensis
- Safflower - Carthamus tinctorius L.
- Sage, garden - Salvia officinalis
- Sagewort, Louisiana - Artemisia ludoviciana Nutt.
- Sagina subulata - Sagina subulata
- Sainfoin - Onobrychis viciifolia Scop.
- Salad burnett - Sanguasorbia minor
- Salix - Salix
- Salpiglossis - Salpiglossis
- Salsify - Tragopogon porrifolius
- Saltbush, fourwing - Atriplex canescens (Pursh) Nutt.
- Salvia - Salvia
- Samanea - Samanea
- Sambucus - Sambucus
- Sanguisorba - Sanguisorba
- Santalum - Santalum
- Santolina - Santolina
- Sanvitalia - Sanvitalia
- Sapindus - Sapindus
- Sapium - Sapium
- Saponaria - Saponaria
- Satureja - Satureja
- Savory, summer - Satureja hortensis
- Savory, winter - Satureja montana
- Scabiosa - Scabiosa
- Schefflera - Schefflera
- Schinus - Schinus
- Schizanthus - Schizanthus
- Schizolobium - Schizolobium
- Scorzonera - Scorzonera hispanica
- Sea purslane - Atriplex hortensis L.
- Sedum - Sedum
- Selenicereus - Selenicereus
- Senecio - Senecio
- Senna - Senna
- Sequoia - Sequoia
- Sequoiadendron - Sequoiadendron
- Serenoa - Serenoa
- Serradella - Ornithopus compressus
- Sesame - Sesamum indicum L.
- Sesbania - Sesbania exaltata (Raf.) A.W. Hill
- Sesbania - Sesbania
- Setaria - Setaria sphacelata (formerly anceps)
- Setaria - Setaria
- Shallot - Allium cepa aggregatum
- Shasta daisy - Leucanthemum x superbum
- Sicana - Sicana
- Sidalcea - Sidalcea
- Signalgrass - Brachiaria decumbens
- Silene - Silene
- Silphium - Silphium
- Simmondsia - Simmondsia
- Sinningia - Sinningia
- Siratro - Macroptilium atropurpureum
- Siro - Panicum laxum
- Sisyrinchium - Sisyrinchium
- Sloughgrass - Beckmannia syzigachne
- Smilax - Smilax
- Smilo - Piptatherum miliaceum (L.) Coss.
- Snapdragon - Antirrhinum spp.
- Solanum - Solanum
- Solidago - Solidago
- Sophora - Sophora
- Sorbaria - Sorbaria
- Sorbus - Sorbus
- Sorghum - Sorghum bicolor (L.) Moench
- Sorghum almum - Sorghum x almum L. Parodi
- Sorghum-sudangrass - Sorghum x drummondii (Steud.) Millsp. and Chase
- Sorgrass - Rhizomatous derivatives of a johnsongrass x sorghum cross or a johnsongrass x sudangrass cross
- Sorrel - Rumex acetosa
- Sourclover - Melilotus indicus (L.) All.
- Soybean - Glycine max (L.) Merr.
- Soybean, edible - Glycine max
- Soybean, edible - Glycine max
- Spartium - Spartium
- Spathodea - Spathodea
- Spearmint - Menta spicata viridis
- Spelt - Triticum spelta L.
- Sphaeralcea - Sphaeralcea
- Spilanthes - Spilanthes
- Spinach - Spinacea oleracea
- Spiraea - Spiraea
- Squash - Cucurbita spp.
- St. Augustine - Stenotophrum secundatum
- Stachys - Stachys
- Stapelia - Stapelia
- Statice - Statice
- Stenocactus - Stenocactus
- Stephanotis - Stephanotis
- Stetsonia - Stetsonia
- Stevia - Stevia
- Stewartia - Stewartia
- Stictocardia - Stictocardia
- Stipa - Stipa
- Stock - Stock
- Strelitzia - Strelitzia
- Strychnos - Strychnos
- Stylo - Stylosanthes spp.
- Stylo, amiga - Stylosanthes hamata
- Stylo, cook - Stylosanthes guianensis
- Stylo, siran - Stylosanthes scabra
- Styrax - Styrax
- Sudangrass - Sorghum x drummondii (Steud.) Millsp. and Chase
- Sugarbeet - Beta vulgaris L. subsp. vulgaris
- Sunflower - Helianthus annuus L.
- Swede - Brassica napus L. varnapobrassica
- Swede - Brassica napus napobrassica
- Sweet corn - Zea mays var. saccharata
- Sweet peas - Sweet peas
- Sweet vernalgrass - Anthoxanthum odoratum L.
- Sweet woodruff - Gallium odoratum
- Sweetclover - Melilotus soo.
- Sweetclover, white - Melilotus albus Medik.
- Sweetclover, yellow - Melilotus officinalis Lam.
- Sweetvetch, northern - Hedysarum boreale Nutt.
- Swietenia - Swietenia
- Swiss chard - Beta vulgaris cicla
- Switchgrass - Panicum virgatum L.
- Symphandra - Symphandra
- Symphoricarpos - Symphoricarpos
- Synsepalum - Synsepalum
- Syringa - Syringa
- Syzygium - Syzygium
- Tabebuia - Tabebuia
- Tacca - Tacca
- Tah tsai
- Talinum - Talinum
- Tamarindus - Tamarindus
- Tanacetum - Tanacetum
- Tansy - Tanacetum vulgare
- Tansy phacelia - Phacelia tanacetifolia
- Tarragon - Artemisia dracunculus
- Taxodium - Taxodium
- Taxus - Taxus
- Tecoma - Tecoma
- Tectonia - Tectonia
- Tephrocactus - Tephrocactus
- Terminalia - Terminalia
- Thelesperma - Thelesperma
- Thelocactus - Thelocactus
- Thermopsis - Thermopsis
- Thespesia - Thespesia
- Thevetia - Thevetia
- Thrinax - Thrinax
- Thunbergia - Thunbergia
- Thuya - Thuya
- Thyme - Thymus vulgaris / serphyllum
- Thyme, wild - Thymus pulegioides / T. serpyllum
- Tilia - Tilia
- Timothy - Phleum pratense L.
- Timothy, turf - Phleum bertolonii DC.
- Titanopsis - Titanopsis
- Tithonia - Tithonia
- Tobacco - Nicotinia tabacum L.
- Tomatillo - Physalis ixocarpa
- Tomato - Lycopersicum esculentum
- Torenia - Torenia
- Trachelium - Trachelium
- Trachycarpus - Trachycarpus
- Tradescantia - Tradescantia
- Tragopogon porrifolius - Tragopogon porrifolius
- Trefoil - Lotus spp.
- Trefoil, big - Lotus uliginosus Schk.
- Trefoil, birdsfoot - Lotus corniculatus L.
- Trevesia - Trevesia
- Trichocereus - Trichocereus
- Trichocereus - Trichocereus
- Trifolium incarnatum - Trifolium incarnatum
- Triticale - x Triticosecale Wittm. (Secale x Triticum)
- Tritoma - Tritoma
- Tronchuda (Portuguese kale) - Brassica oleracea var costata cv. 'Portuguesa'
- Tropaeolum - Tropaeolum
- Tsuga - Tsuga
- Turnip - Brassica campestris rapa
- Tylecodon - Tylecodon
- Typha - Typha
- Ulex - Ulex
- Ulmus - Ulmus
- Ursinia - Ursinia
- Vaccaria - Vaccaria
- Vaccinium - Vaccinium
- Valerian - Valeriana officinalis
- Vaseygrass - Paspalum urvillei Steud.
- Vatricania - Vatricania
- Veitchia - Veitchia
- Veldtgrass - Ehrharta calycina J.E. Smith
- Velvetbean - Mucuna pruriens (L.) DC var. utilis (Wright) Burck
- Velvetgrass - Holcus Lanatus L.
- Venidium - Venidium
- Verbascum - Verbascum
- Verbena - Verbena
- Verbesina - Verbesina
- Vernonia - Vernonia
- Veronica - Veronica
- Vetch
- Vetch, common - Vicia sativa L. subsp. sativa
- Vetch, hairy - Vicia villosa Roth subsp. villosa
- Vetch, Hungarian - Vicia pannonica Crantz
- Vetch, joint - Aeschynomene americana
- Vetch, monantha - Vicia articulata Hornem.
- Vetch, narrowleaf or blackpod - Vicia sativa L. subsp. nigra (L.) Ehrh.
- Vetch, purple - Vicia atropurpurea
- Vetch, reddish tufted - Vicia villosa Roth subsp. varia (Host) Corb.
- Vetch, woollypod or winter - Vicia villosa Roth subsp. varia (Host) Corb.
- Viburnum - Viburnum
- Vicia - Vicia
- Vigna, creeping - Vigna parkeri
- Viguiera - Viguiera
- Vinca - Vinca
- Viola - Viola
- Viscaria oculata - Viscaria oculata
- Vitex - Vitex
- Washingtonia - Washingtonia
- Water pepper - Polygonum hydropiper var. fastigiastum
- Watermelon - Citrullus lanatus var. lanatus
- Weigela - Weigela
- Wheat - Triticum vulgare
- Wheat, club - Triticum compactum Host
- Wheat, common - Triticum aestivum L.
- Wheat, durum - Triticum durum Desf.
- Wheat, Polish - Triticum polonicum L.
- Wheat, poulard - Triticum turgidum L.
- Wheat x Agroticum - Wheat x Agroticum
- Wheatgrass
- Wheatgrass, beardless - Pseudoroegneria spicata (Pursh) A. Love
- Wheatgrass, blue bunch - Agropyron spicatum
- Wheatgrass, crested or fairway crested - Agropyron cristatum (L.) Gaertn.
- Wheatgrass, crested or standard crested - Agropyron desertorum (Link) Schult.
- Wheatgrass, intermediate - Elytrigia intermedia (Host) Nevski subsp. intermedia
- Wheatgrass, pubescent - Elytrigia intermedia (Host) Nevski subsp. intermedia
- Wheatgrass, Siberian - Agropyron fragile (roth) Candargy subsp. sibiricum (Willd.) Meld.
- Wheatgrass, slender - Elymus trachycaulus (Link) Shinn.
- Wheatgrass, streambank - Elymus lanceolatus (Scribn. and J.G. Smith) Gould subsp. lanceolatus
- Wheatgrass, tall - Agropyron elongatum / Elytrigia elongata (Host) Nevski
- Wheatgrass, western - Pascopyrum smithii (Rydb.) A. Love
- Whitania - Whitania
- White Leadtree - Leucaena leucocephala
- Wild rocket - Rucola selvatica
- Wild rucola - Diplotaxis spp.
- Wild rye
- Wild rye, basin - Leymus cinereus (Scribn. and Merr.) A. Love
- Wild rye, Canada - Elymus canadensis L.
- Wild rye, Dahurian - Elymus dahuricus Turcz
- Wild rye, Russian - Psathyrostachys juncea (Fisch.) Nevski
- Wild strawberry - Fragaria vesca
- Wisteria - Wisteria
- Wormwood - Artemisia absinthium
- Wyethia - Wyethia
- Wynn Cassia - Chamaecrista rotundifolia
- Xanthoceras - Xanthoceras
- Xanthorrhoea - Xanthorrhoea
- Xeranthemum - Xeranthemum
- Xerophyllum - Xerophyllum
- Yarrow, white - Achillea millefolium
- Yucca - Yucca
- Zaluzianskya - Zaluzianskya
- Zamia - Zamia
- Zamia - Zamia
- Zelkova - Zelkova
- Zinnia - Zinnia
- Zizyphus - Zizyphus
- Zoysiagrass - Zoysia
- Zoysiagrass, japonica - Zoysia japonica
- Zoysiagrass, sinica - Zoysia sinica
- Zygocactus - Zygocactus
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