plants list and botanical names

•    Alder – Alnus
•    Black alder – Alnus glutinosa, Ilex verticillata
•    Common alder – Alnus glutinosa
•    False alder – Ilex verticillata
•    Gray alder – Alnus incana
•    Speckled alder – Alnus incana
•    Striped alder – Ilex verticillata
•    White alder – Alnus incana, Ilex verticillata
•    Almond – Prunus amygdalus
•    Ambrosia
•    Tall ambrosia – Ambrosia trifida
•    Amy root – Apocynum cannabinum
•    Apple – Malus domestica
•    Apricot – Prunus armeniaca
•    Arfaj – Rhanterium epapposum
•    Arizona sycamore – Platanus wrighitii
•    Arrowwood – Cornus florida
•    Indian arrowwood – Cornus florida
•    Ash – Fraxinus spp.
•    Black ash – Acer negundo, Fraxinus nigra
•    Blue ash – Fraxinus pennsylvanica
•    Cane ash – Fraxinus americana
•    Green ash – Fraxinus pennsylvanica
•    Maple ash – Acer negundo
•    Red ash – Fraxinus pennsylvanica
•    River ash – Fraxinus pennsylvanica
•    Swamp ash – Fraxinus pennsylvanica
•    White ash – Fraxinus americana
•    Water ash – Acer negundo, Fraxinus pennsylvanica
•    Azolla – Azolla
•    Carolina azolla – Azolla caroliniana
B


Fruits of four different banana cultivars
•    Bamboo – Bambuseae
•    Banana – mainly Musa × paradisica, but also other Musa species and hybrids
•    Baobab – Adansonia
•    Bay – Laurus spp. or Umbellularia spp.
•    Bay laurel – Laurus nobilis (culinary)
•    California bay – Umbellularia californica
•    Bean – Fabaceae, specifically Phaseolus spp.
•    Bearberry – Ilex decidua
•    Bear corn – Veratrum viride
•    Beech – Fagus
•    Bindweed
•    Blue bindweed – Solanum dulcamara
•    Bird's nest – Daucus carota
•    Bird's nest plant – Daucus carota

Betula lenta
•    Birch – Betula spp.
•    Black birch – Betula lenta, Betula nigra
•    Bolean birch – Betula papyrifera
•    Canoe birch – Betula papyrifera
•    Cherry birch – Betula lenta
•    European weeping birch – Betula pendula
•    European white birch – Betula pendula
•    Gray birch – Betula alleghaniensis
•    Mahogany birch – Betula lenta
•    Paper birch – Betula papyrifera
•    Red birch – Betula nigra
•    River birch – Betula nigra, Betula lenta
•    Silver birch – Betula papyrifera
•    Spice birch – Betula lenta
•    Sweet birch – Betula lenta
•    Water birch – Betula nigra
•    Weeping birch – Betula pendula
•    White birch – Betula papyrifera, Betula pendula
•    Yellow birch – Betula alleghaniensis
•    Bittercress – Barbarea vulgaris, Cardamine bulbosa, Cardamine hirsuta
•    Hairy bittercress – Cardamine hirsuta
•    Bittersweet – Solanum dulcamara
•    Trailing bittersweet – Solanum dulcamara
•    Bitterweed – Any plant in the Ambrosia genus, specially Ambrosia artemisiifolia, Artemisia trifida, Helenium amarum
•    Blackberry – Rubus spp., Rubus pensilvanicus, Rubus occidentalis
•    Hispid swamp blackberry – Rubus hispidus
•    Pennsylvania blackberry – Rubus pensilvanicus
•    Running swamp blackberry – Rubus hispidus
•    Black cap – Rubus occidentalis
•    Black-eyed Susan – Rudbeckia hirta, Rudbeckia fulgida
•    Blackhaw – Viburnum prunifolium
•    Blackiehead – Rudbeckia hirta
•    Black-weed – Ambrosia artemisiifolia
•    Blueberry – Vaccinium (Cyanococcus) spp.
•    Blue-of-the-heavens – Allium caeruleum
•    Bow-wood – Maclura pomifera
•    Box – Buxus
•    False box – Cornus florida
•    Boxelder – Acer negundo
•    Boxwood – Buxus, Cornus florida
•    False boxwood – Cornus florida
•    Brier
•    Sand brier – Solanum carolinense
•    Brittlebush – Encelia farinosa
•    Broadleaf – Plantago major
•    Brown Betty – Rudbeckia hirta
•    Brown-eyed Susan – Rudbeckia hirta, Rudbeckia triloba
•    Buckeye (California buckeye) – Aesculus californica
•    buckeye – Aesculus spp.
•    Buffalo weed – Ambrosia trifida
•    Butterfly flower – Asclepias syriaca
•    Butterfly weed – Asclepias tuberosa
C

•    Cabbage – Brassica oleracea
•    Clumpfoot cabbage – Symplocarpus foetidus
•    Meadow cabbage – Symplocarpus foetidus
•    Skunk cabbage – Symplocarpus foetidus, Lysichiton spp.
•    Swamp cabbage – Symplocarpus foetidus
•    California bay – Umbellularia californica
•    California buckeye – Aesculus californica
•    California sycamore – Platanus racemosa
•    California walnut – Juglans californica
•    Canada root – Asclepias tuberosa
•    Cancer jalap – Phytolacca americana
•    Carrot – Daucus carota
•    Wild carrot – Daucus carota
•    Carrot weed – Ambrosia artemisiifolia
•    Cart track plant – Plantago major
•    Catalina ironwood – Lyonothamnus floribundus ssp. floribundus
•    Cherry – Prunus spp.
•    Black cherry – Prunus serotina
•    Cabinet cherry – Prunus serotina
•    Rum cherry – Prunus serotina
•    Whiskey cherry – Prunus serotina
•    Wild cherry – Prunus avium, Prunus serotina
•    Wild black cherry – Prunus serotina
•    Chestnut – Castanea spp.
•    Chigger flower – Asclepias tuberosa
•    Chrysanthemum – Dendranthema grandiflora, Chrysanthemum morifolium
•    (True) cinnamon – Cinnamomum verum
•    Clove – Syzygium aromaticum
•    Clover – Trifolium spp.
•    Coakum – Phytolacca americana
•    Coconut – Cocos nucifera
•    Coffee plant – Coffea spp.
•    Colic weed – Corydalis flavula
•    Collard – Symplocarpus foetidus
•    Colwort
•    Hare's colwort – Sonchus oleraceus
•    Coneflower
•    Brilliant coneflower – Rudbeckia fulgida
•    Cutleaf coneflower – Rudbeckia laciniata
•    Eastern coneflower – Rudbeckia fulgida
•    Green-headed Coneflower – Rudbeckia laciniata
•    Orange coneflower – Rudbeckia fulgida
•    Tall coneflower – Rudbeckia laciniata
•    Thin-leaved Coneflower – Rudbeckia triloba
•    Three-leaved Coneflower – Rudbeckia triloba
•    Cornel
•    Blueberry cornel – Cornus amomum
•    Silky cornel – Cornus amomum
•    White cornel – Cornus florida
•    Cornelian tree – Cornus florida
•    Corydalis – Corydalis spp.
•    Fern-leaf Corydalis – Corydalis chelidoniifolia
•    Golden corydalis – Corydalis aurea
•    Pale corydalis – Corydalis flavula, Corydalis sempervirens
•    Pink corydalis – Corydalis sempervirens
•    Yellow corydalis – Corydalis lutea, Corydalis flavula
•    Cotton plant – Gossypium
•    Creeping yellowcress – Rorippa sylvestris
•    Cress – (several genera)
•    American cress – Barbarea verna
•    Bank cress – Barbarea verna
•    Belle Isle cress – Barbarea verna
•    Bermuda cress – Barbarea verna
•    Bulbous cress – Cardamine bulbosa
•    Lamb's cress – Cardamine hirsuta
•    Land cress – Barbarea verna, Cardamine hirsuta
•    Scurvy cress – Barbarea verna
•    Spring cress – Cardamine bulbosa
•    Upland cress – Barbarea verna
•    Crowfoot – Cardamine concatenata
•    Crow's nest – Daucus carota
•    Crow's toes – Cardamine concatenata
•    Cucumber – Cucumis sativus
D


Rudbeckia hirta
•    Daisy
•    Brown daisy – Rudbeckia hirta
•    Common daisy, daisy – Bellis perennis
•    Gloriosa daisy – Rudbeckia hirta
•    Poorland daisy – Rudbeckia hirta
•    Yellow daisy – Rudbeckia hirta
•    Yellow ox-eye daisy – Rudbeckia hirta
•    Deadnettle – Lamium spp.
•    Henbit deadnettle – Lamium amplexicaule
•    Red deadnettle – Lamium purpureum
•    Spotted deadnettle – Lamium maculatum
•    Devil's bite – Veratrum viride
•    Devil's darning needle – Clematis virginiana
•    Devil's nose – Clematis virginiana
•    Devil's plague – Daucus carota
•    Dewberry
•    Bristly dewberry – Rubus hispidus
•    Swamp dewberry – Rubus hispidus
•    Dindle – Sonchus arvensis
•    Dogwood – Cornus spp.
•    American dogwood – Cornus florida
•    Florida dogwood – Cornus florida
•    Flowering dogwood – Cornus florida
•    Japanese flowering dogwood – Cornus kousa
•    Kousa dogwood – Cornus kousa
•    Drumstick – Moringa oleifera
•    Pacific dogwood – Cornus nuttallii
•    Silky dogwood – Cornus amomum
•    Swamp dogwood – Cornus amomum
•    Duck retten – Veratrum viride
•    Duscle – Solanum nigrum
•    Dye-leaves – Ilex glabra
E

•    Earth gall – Veratrum viride
•    English bull's eye – Rudbeckia hirta
•    Eucalyptus – Eucalyptus spp.
•    Extinguisher moss – Encalypta
•    Eytelia – Amphipappus

•    Fair-maid-of-France – Achillea ptarmica
•    Fairymoss Azolla caroliniana
•    Fellenwort – Solanum dulcamara
•    Felonwood – Solanum dulcamara
•    Felonwort – Solanum dulcamara
•    Fennel – Foeniculum vulgare
•    Ferns
•    Boston fern or sword fern – Nephrolepis exaltata
•    Christmas fern – Polystichum acrostichoides
•    Coast polypody – Polypodium scouleri
•    Kimberly queen fern – Nephrolepis obliterata
•    Korean rock fern – Polystichum tsus-simense
•    Mosquito fern – Azolla caroliniana
•    Sword ferns – Polystichum spp.
•    Water fern – Azolla caroliniana
•    Western sword fern – Polystichum munitum
•    Feverbush – Ilex verticillata
•    Feverfew – Tanacetum parthenium
•    Fig – Ficus spp.
•    Common fig – Ficus carica
•    Flax
•    European flax – Linum usitatissimum
•    New Zealand flax – Phormium tenax, Phormium colensoi
•    Fluxroot – Asclepias tuberosa
•    Fumewort
•    Yellow fumewort – Corydalis flavula
G

•    Gallberry – Ilex glabra
•    Garget – Phytolacca americana
•    Garlic
•    Golden garlic – Allium moly
•    Wild garlic – Allium canadense
•    Garlic mustard – Alliaria petiolata
•    Garlic root – Alliaria petiolata
•    Gilliflower
•    Dame's gilliflower – Hesperis matronalis
•    Night scented gilliflower – Hesperis matronalis
•    Queen's gilliflower – Hesperis matronalis
•    Rogue's gilliflower – Hesperis matronalis
•    Winter gilliflower – Hesperis matronalis
•    Golden buttons – Tanacetum vulgare
•    Goldenglow – Rudbeckia laciniata
•    Golden Jerusalem – Rudbeckia hirta
•    Gordaldo – Achillea millefolium
•    Goose tongue – Achillea ptarmica
•    Grapefruit – Citrus × paradisi
•    Grapevine – Vitis
•    Groundberry – Rubus hispidus
•    Bristly groundberry – Rubus hispidus
•    Gutweed – Sonchus arvensis
H

•    Haldi – Curcuma domestica
•    Harlequin
•    Rock harlequin – Corydalis sempervirens
•    Yellow harlequin – Corydalis flavula
•    Hay fever weed – Ambrosia artemisiifolia, Artemisia trifida
•    Healing blade – Plantago major
•    Hedge plant – Maclura pomifera
•    Hellebore – Helleborus
•    American white hellebore – Veratrum viride
•    Big hellebore – Veratrum viride
•    Black hellebore – Veratrum nigrum
•    European white hellebore – Veratrum album
•    False hellebore – Veratrum album, Veratrum viride
•    Swamp hellebore – Veratrum viride
•    White hellebore – Veratrum album, Veratrum viride
•    Hemp – Cannabis spp., specifically Cannabis sativa
•    Hemp dogbane – Apocynum cannabinum
•    Hen plant – Plantago major
•    Herb barbara – Barbarea vulgaris
•    Hogweed – Ambrosia artemisiifolia
•    Holly – Ilex spp.
•    Deciduous holly – Ilex decidua, Ilex verticillata
•    European holly – Ilex aquifolium
•    Inkberry holly – Ilex glabra
•    Meadow holly – Ilex decidua
•    Swamp holly – Ilex decidua
•    Winterberry holly – Ilex verticillata
•    Horse cane – Ambrosia trifida
•    Hound's berry – Solanum nigrum
•    Huckleberry – Vaccinium spp.
•    Evergreen huckleberry – Vaccinium ovatum
•    Trailing red huckleberry – Vaccinium parvifolium
•    Houseleek – Sempervivum tectorum
I

•    Indian hemp – various genera
•    Indian hemp – Apocynum cannabinum, Cannabis indica
•    White Indian hemp – Asclepias incarnata
•    Indian paintbrush – Castilleja, Castilleja mutis, Asclepias tuberosa
•    Indian posy – Asclepias tuberosa
•    Inkberry – Ilex glabra, Phytolacca americana
•    Isle of Man cabbage – Coincya monensis
•    Itchweed – Veratrum viride
•    Ivy – Hedera spp.
J

•    Jack-by-the-hedge – Alliaria petiolata
•    Jack-in-the-bush – Alliaria petiolata
•    Juneberry – Amelanchier canadensis
•    Juniper – Various species in the genus Juniperus
K

•    Laceflower – Daucus carota
•    Lamb's foot – Plantago major
•    Lavender – Lavandula
•    Leek – Allium
•    Lemon – Citrus × limon
•    Lettuce – Lactuca sativa
•    Lily leek – Allium moly
•    Lilac
•    Summer lilac – Hesperis matronalis
•    Love vine – Clematis virginiana
M

•    Maize – Zea mays
•    Mango – Mangifera indica
•    Maple – Acer
•    Ash-leaved maple – Acer negundo
•    Black maple – Acer nigrum
•    Creek maple – Acer saccharinum
•    Cutleaf maple – Acer negundo
•    Maple ash – Acer negundo
•    Moose maple – Acer pensylvanicum
•    Red river maple – Acer negundo
•    River maple – Acer saccharinum
•    Silver maple – Acer saccharinum
•    Silverleaf maple – Acer saccharinum
•    Soft maple – Acer saccharinum
•    Striped maple – Acer pensylvanicum
•    Sugar maple – Acer saccharum (main use), Acer barbatum, Acer leucoderme,
•    Swamp maple – Acer saccharinum
•    Water maple – Acer saccharinum
•    White maple – Acer saccharinum
•    Mesquite – Prosopis
•    Honey mesquite – Prosopis glandulosa
•    Screwbean mesquite – Prosopis pubescens
•    Milfoil – Achillea millefolium
•    Milkweed – Asclepias, Sonchus oleraceus
•    Blunt-leaved Milkweed – Asclepias amplexicaulis
•    Common milkweed – Asclepias syriaca
•    Horsetail milkweed – Asclepias verticillata
•    Orange milkweed – Asclepias tuberosa
•    Swamp milkweed – Asclepias incarnata
•    Rose milkweed – Asclepias incarnata
•    Whorled milkweed – Asclepias verticillata
•    Yellow milkweed – Asclepias tuberosa
•    Milky tassel – Sonchus oleraceus
•    Moosewood – Acer pensylvanicum
•    Morel
•    Petty morel – Solanum nigrum
•    Mosquito plant – Azolla caroliniana
•    Mother-of-the-evening – Hesperis matronalis
•    Mountain mahogany – Betula lenta
•    Mulberry – Morus
•    Red mulberry – Morus rubra
•    White mulberry – Morus alba
N

•    Flowering Dogwood – Cornus florida
•    Neem – Azadirachta indica
•    Nettle - Urtica dioica
•    Bull nettle – Solanum carolinense
•    Carolina horse nettle – Solanum carolinense
•    Horse nettle – Solanum carolinense
•    Nightshade
•    American nightshade – Phytolacca americana, Solanum americanum
•    Bitter nightshade – Solanum dulcamara
•    Black nightshade – Solanum nigrum, Solanum americanum
•    Climbing nightshade – Solanum dulcamara
•    Deadly nightshade – Solanum nigrum
•    Garden nightshade – Solanum nigrum
•    Trailing nightshade – Solanum dulcamara
•    Trailing violet nightshade – Solanum dulcamara
•    Woody nightshade – Solanum dulcamara
•    Nosebleed – Achillea millefolium
O

•    Oak tree -Quercus
•    Algerian Oak Quercus canariensis
•    Blue oak – Quercus douglasii
•    Bur oak – Quercus macrocarpa
•    California Black Oak Quercus kelloggii
•    Canyon Live Oak Quercus chrysolepis
•    Champion oak – Quercus rubra
•    Coast live oak – Quercus agrifolia
•    Cork oak – Quercus suber
•    Dyer's oak – Quercus velutina
•    Eastern black oak – Quercus velutina'
•    English oak – Quercus robur
•    Island oak – Quercus. tomentella
•    Mirbeck's oak – Quercus canariensis
•    Mossycup white oak – Quercus macrocarpa
•    Northern red oak – Quercus rubra
•    Pedunculate oak – Quercus robur
•    Pin oak – Quercus palustris
•    Red oak – Quercus rubra, Quercus coccinea
•    Scarlet oak – Quercus coccinea
•    Scrub oak – Quercus macrocarpa
•    Sessile oak – Quercus petraea
•    Spanish oak – Quercus coccinea, Quercus rubra
•    Spotted oak – Quercus velutina
•    Swamp oak – Quercus palustris, Quercus bicolor
•    Swamp Spanish oak – Quercus palustris
•    Swamp white oak – Quercus bicolor
•    Valley oak – Quercus lobata
•    White oak – Quercus alba
•    Yellowbark oak – Quercus velutina
•    Olive – Olea europaea
•    Onion – Allium
•    Common onion – Allium cepa
•    Giant onion – Allium giganteum
•    Nodding onion – Allium cernuum
•    Tree onion – Allium canadense
•    Wild onion – Allium canadense
•    Orange-[awr-inj,or-]
•    Osage orange – Maclura pomifera
•    sweet orange – Citrus × sinensis
•    Wild orange – Maclura pomifera
•    Orange-root – Asclepias tuberosa
•    Osage – Maclura pomifera
•    Osier - Salix; (in North America) Cornus
•    Red osier – Cornus amomum
P

•    Parsley – Petroselinum crispum
•    Parsnip – Pastinaca sativa, Daucus carota
•    Pea – Pisum sativum
•    Peach – Prunus persica
•    Peanut – Arachis hypogaea
•    Pear – Pyrus
•    Pellitory
•    Bastard pellitory – Achillea ptarmica
•    European pellitory – Achillea ptarmica
•    Wild pellitory – Achillea ptarmica
•    Penny hedge – Alliaria petiolata
•    Pepper root – Cardamine concatenata
•    Pigeon berry – Phytolacca americana
•    Pine – Pinus
•    Pineapple – Ananas comosus
•    Pistachio – Pistacia vera
•    Plane (European sycamore) – Platanus acerifolia
•    Plantain
•    Broadleaf plantain – Plantago major
•    Common plantain – Plantago major
•    Dooryard plantain – Plantago major
•    Greater plantain – Plantago major
•    Roundleaf plantain – Plantago major
•    Wayside plantain – Plantago major
•    Pleurisy root – Asclepias tuberosa
•    Pocan bush – Phytolacca americana
•    Poison ivy – Toxicodendron radicans
•    Poisonberry – Solanum dulcamara
•    Poisonflower – Solanum dulcamara
•    Poke – Phytolacca americana
•    Indian poke – Veratrum viride
•    Pokeroot – Phytolacca americana
•    Pokeweed – Phytolacca americana
•    Polkweed – Symplocarpus foetidus
•    Polecat weed – Symplocarpus foetidus
•    Poor Annie – Veratrum viride
•    Poor man's mustard – Alliaria petiolata
•    Poplar – Populus
•    Poppy – Papaveraceae
•    Possumhaw – Ilex decidua
•    Potato – Solanum tuberosum
•    Pudina – Mentha indica

•    Radical weed – Solanum carolinense
•    Ragweed – Ambrosia
•    Common ragweed – Ambrosia artemisiifolia
•    Giant ragweed – Ambrosia trifida
•    Great ragweed – Ambrosia trifida
•    Ragwort – Senecio
•    Common ragwort – Senecio jacobaea
•    Hoary ragwort – Senecio erucifolius
•    Marsh ragwort – Senecio aquaticus
•    Oxford ragwort – Senecio squalidus
•    Silver ragwort – Senecio cineraria
•    Rantipole – Daucus carota
•    Rapeseed – Brassica napus
•    Raspberry – Rubus (Idaeobatus) spp.
•    Black raspberry – Rubus occidentalis
•    Purple raspberry – Rubus occidentalis
•    Redbrush – Cornus amomum
•    Redbud – Cercis spp.
•    Eastern redbud – Cercis canadensis
•    Western redbud – Cercis occidentalis
•    Judas-tree – Cercis siliquastrum
•    Red ink plant – Phytolacca americana
•    Redweed – Phytolacca americana
•    Rheumatism root – Apocynum cannabinum
•    Rhubarb – Rheum rhabarbarum
•    Ribwort – Plantago major
•    Rice
•    Asian rice – Oryza sativa
•    African rice – Oryza glaberrima
•    Roadweed – Plantago major
•    Rocket – (several genera)
•    Dame's rocket – Hesperis matronalis
•    Sweet rocket – Hesperis matronalis
•    Winter rocket – Barbarea vulgaris
•    Yellow rocket – Barbarea vulgaris
•    Rocketcress – Barbarea vulgaris
•    Rose – Rosa
•    Baby rose – Rosa multiflora
•    Dwarf wild rose – Rosa virginiana
•    Low rose – Rosa virginiana
•    Multiflora rose – Rosa multiflora
•    Prairie rose – Rosa virginiana
•    Rambler rose – Rosa multiflora
•    Wild rose – Rosa virginiana
•    Rosemary – Rosmarinus officinalis
•    Rye – Secale cereale
S

•    Saffron crocus – Crocus sativus
•    Sanguinary – Achillea millefolium
•    Saskatoon - Amelanchier alnifolia
•    Sauce-alone – Alliaria petiolata
•    Scarlet berry – Solanum dulcamara
•    Scoke – Phytolacca americana
•    Scotch cap – Rubus occidentalis
•    Scrambled eggs – Corydalis aurea
•    Scurvy grass – Barbarea verna
•    Serviceberry – Amelanchier
•    Common serviceberry – Amelanchier arborea
•    Downy serviceberry – Amelanchier arborea
•    Shadblow serviceberry – Amelanchier canadensis
•    Shadblow – Amelanchier canadensis
•    Shadbush – Amelanchier canadensis
•    Silkweed – Asclepias syriaca
•    Swamp silkweed – Asclepias incarnata
•    Virginia silkweed – Asclepias syriaca
•    Skunkweed – Symplocarpus foetidus
•    Snakeberry – Solanum dulcamara
•    Snowdrop – Galanthus
•    Sorrel – Oxalis
•    Redwood sorrel – Oxalis oregana
•    Speedwell
•    Corn speedwell – Veronica arvensis
•    Wall speedwell – Veronica arvensis
•    Spoolwood – Betula papyrifera
•    Squaw bush – Cornus amomum
•    Stammerwort – Ambrosia artemisiifolia
•    Star-of-Persia – Allium cristophii
•    Stickweed – Ambrosia artemisiifolia
•    Strawberry – Fragaria × ananassa
•    Strawberry tree – Arbutus unedo
•    Strawberry tree 'Marina' – Madrone – Arbutus 'Marina'
•    Sugarcane – Saccharum
•    Swallow-wort
•    Orange swallow-wort – Asclepias tuberosa
•    Silky swallow-wort – Asclepias syriaca
•    Sneezeweed – Achillea ptarmica
•    Sneezewort – Achillea ptarmica
•    Sunflower – Helianthus annuus
•    Sugarplum – Amelanchier canadensis
•    Soldier's woundwort – Achillea millefolium
•    Stag bush – Viburnum prunifolium
•    Swallow-wort
•    Orange swallow-wort – Asclepias tuberosa
•    Silky swallow-wort – Asclepias syriaca
•    Sweet potato – Ipomoea batatas
•    Sweet potato vine – Ipomoea batatas
•    Swinies – Sonchus oleraceus
•    Sycamore – Platanus spp.
•    Sycamore (California) – Platanus racemosa
•    Sycamore (Arizona) – Platanus wrighitii
•    Sycamore (American) – Platanus occidentalis
•    Sundari (Bangladesh)- "Heritiera fomes"
•    Gewa (Bangladesh)- "Excoecaria agallocha"
T

•    Tansy
•    Common tansy – Tanacetum vulgare
•    White tansy – Achillea ptarmica
•    Wild tansy – Ambrosia artemisiifolia
•    Tea – Camellia sinensis
•    Appalachian tea – Ilex glabra
•    Thimbleberry – Rubus occidentalis
•    Thimbleweed – Rudbeckia laciniata
•    Thousand-leaf – Achillea millefolium
•    Thousand-seal – Achillea millefolium
•    Tassel weed – Ambrosia artemisiifolia
•    Thistle – (Several genera)
•    Annual sow thistle – Sonchus oleraceus
•    California thistle – Cirsium arvense
•    Canada thistle – Cirsium arvense
•    Corn thistle – Cirsium arvense
•    Corn sow thistle – Sonchus arvensis
•    Creeping thistle – Cirsium arvense
•    Cursed thistle – Cirsium arvense
•    Field sow thistle – Sonchus arvensis
•    Green thistle – Cirsium arvense
•    Hard thistle – Cirsium arvense
•    Hare's thistle – Sonchus oleraceus
•    Milk thistle – Sonchus oleraceus
•    Nodding thistle – Carduus nutans L.
•    Perennial thistle – Cirsium arvense
•    Prickly thistle – Cirsium arvense
•    Sharp-fringed sow Thistle – Sonchus asper
•    Small-flowered Thistle – Cirsium arvense
•    Spiny sow thistle – Sonchus asper
•    Spiny-leaved sow Thistle – Sonchus asper
•    Swine thistle – Sonchus arvensis
•    Tree sow thistle – Sonchus arvensis
•    Way thistle – Cirsium arvense
•    Thyme – Thymus, specifically Thymus vulgaris
•    Tickleweed – Veratrum viride
•    Tobacco plant – Nicotiana
•    Tomato – Solanum lycopersicum
•    Toothwort – Cardamine concatenata
•    Cutleaf toothwort – Cardamine concatenata
•    Purple-flowered Toothwort – Cardamine concatenata
•    Touch-me-not – Impatiens capensis, Impatiens pallida, Mimosa pudica, Cardamine hirsuta
•    Traveller's joy – Clematis virginiana
•    Tread-softly – Solanum carolinense
•    Tree tobacco – Nicotiana glauca
•    Trillium – Trillium spp.
•    Western trillium – Trillium ovatum
•    Western wake robin – Trillium ovatum
•    White trillium – Trillium grandiflorum
•    Tuber-root – Asclepias tuberosa
•    Tulip – Tulipa
•    Tulsi – Ocimum santalum
U

•    Z
•    Vanilla orchid – Vanilla
•    Viburnum – Viburnum
•    Blackhaw viburnum – Viburnum prunifolium
•    Leatherleaf viburnum – Viburnum rhytidophyllum
•    Violet – (several genera)
•    Viola species
•    African violet – Saintpaulia species
•    Damask violet – Hesperis matronalis
•    Dame's violet – Hesperis matronalis
•    Dog's-tooth-violet or dogtooth violet – Erythronium dens-canis
•    Violet bloom – Solanum dulcamara
•    Virgin's bower – Clematis virginiana
•    Virginia virgin's bower – Clematis virginiana
W

•    Z
•    Walnut (California walnut) – Juglans californica
•    Walnut – Juglans sp.
•    Waybread – Plantago major
•    Western redbud – Cercis occidentalis
•    Wheat – Triticum spp.
•    White man's foot – Plantago major
•    White-root – Asclepias tuberosa
•    Wild cotton – Apocynum cannabinum, Asclepias syriaca
•    Wild hops – Clematis virginiana
•    Willow – Salix
•    Coyote willow – Salix exigua
•    Goodding willow – Salix gooddingii
•    Red willow – Cornus amomum
•    Rose willow – Cornus amomum
•    Windroot – Asclepias tuberosa
•    Wineberry – Rubus phoenicolasius
•    Winterberry – Ilex verticillata
•    American winterberry – Ilex verticillata
•    Evergreen winterberry – Ilex glabra
•    Virginia winterberry – Ilex verticillata
•    Wintercress – Barbarea vulgaris
•    Early wintercress – Barbarea verna
•    Woodbine – Clematis virginiana
•    Wormwood
•    Roman wormwood – Ambrosia artemisiifolia, Corydalis sempervirens
•    Wound rocket – Barbarea vulgaris
X

•    Z
•    Yarrow – Achillea
•    Common yarrow – Achillea millefolium
•    Fernleaf yarrow – Achillea filipendulina
•    Sneezewort yarrow – Achillea ptarmica
•    Woolly yarrow – Achillea tomentosa
•    Yellow fieldcress – Rorippa sylvestris
•    Yellowwood – Cladrastis lutea, Maclura pomifera
•    Yellow coneflower – Echinacea paradoxa
•    Yam - Dioscorea; (in North America) Ipomoea batatas