A B C D E F G H I J K L M N O P Q R S T U V W X/Y/Z
A
Abies
Abraham-Isaac-Jacob
Acacia, false
Acaena
Acanthaceae
Acanthus
Achillea
Acer
Aceraceace
Aconite, winter
Aconitum
Acorus
Actaea
Adder's-tongue
Adoxa
Adoxaceae
Adiantum
Aegonychon
Aegopodium
Aesculus
Aethusa
Agave
Agapanthus
Agrimonia
Agrimony
Agrostemma
Agrostis
Ailanthus
Aira
Aizoaceae
Ajuga
Ake-ake
Alcea
Alchemilla
Alder
Alder-buckthorn
Alexanders
Alfalfa
Alisma
Alismataceae
Alison
Alison, golden
Alkanet
Alliaria
Allium
Allseed
Allseed, four-leaved
Alnus
Alopecurus
Alsike-clover
Alstroemeria
Alstroemeriaceae
Altar-lily
Althaea
Altingiaceae
Alyssum (see Aurinia)
Amaranth
Amaranthaceae
Amaranthus
Amaryllidaceae
Amaryllis
Ambrosia
Amelanchier
American-brome
Ammi
Ammophila
Amsinckia
Anacamptis
Anacardiaceae
Anagallis
Anaphalis
Anchusa
Andromeda
Anemone
Anemone
Anethum
Angelica
Angelica
Anisantha
Anogramma
Antennaria
Anthemis
Anthoxanthum
Anthriscus
Anthyllis
Antirrhinum
Aphanes
Apiaceae
Apium
Apium (=Helosciadium)
Apocynaceae
Aponogeton
Apple
Apple-of-Peru
Aquifoliaceae
Aquilegia
Arabidopsis
Arabis
Araceae
Araliceae
Araucaria
Araucariaceae
Arbutus
Archangel, yellow
Arctium
Arctostaphylos
Arenaria
Arisarum
Aristavena
Armeria
Armoracia
Aronia
Arrhenatherum
Arrowhead
Arrowgrass
Artemisia
Artichoke, globe
Artichoke, Jerusalem
Arum
Aruncus
Asarina
Ash
Asparagaceae
Asparagus
Asparagus
Aspen
Asphodel, bog
Asphodel, Scottish
Asperula
Asplenium
Aster
Aster
Aster, Mexican
Aster, sea
Asteraceae
Astragalus
Astrantia
Astrantia
Athrotaxis
Athyrium
Atriplex
Atropa
Aubretia
Aubretia
Aucuba
Aurinia
Austrocedrus
Autumn-hawkbit
Autumn-crocus
Avena
Avenella
Avens
Avens, mountain
Avenula
Awlwort
Azalea, mountain
Azolla
B
Bacopa
Baldellia
Ballota
Balm
Balsam
Balsaminaceae
Bamboo
Baneberry
Barbarea
Barberry
Barley
Barley, wall
Barrenwort
Bartsia
Bartsia, alpine
Bartsia, red
Bartsia, yellow
Basil, wild
Bastard-toadflax
Bay
Beak-sedge
Bearberry
Beard-grass, Annual
Bear's-breech
Bedstraw
Bee-orchid
Beech
Beech-fern
Beet, sea
Beggarticks
Bella-di-notte
Bellflower
Bellis
Bent
Berberidaceae
Berberis
Bergenia
Bermuda-grass
Berula
Beta
Betonica
Betony
Betula
Betulaceae
Bidens
Bilberry
Bindii
Bindweed
Bindweed-family
Bindweed, black
Birch
Bird's-foot
Bird's-foot-fenugreek
Bird's-foot-trefoil
Bird's-nest, yellow
Bird's-nest-orchid
Bistort
Bitter-cress
Bittersweet
Blackberry
Black-bryony
Black-eyed_Susan
Black-grass
Black-jack
Black-mustard
Blackstonia
Blackthorn
Black-twitch
Bladder-fern
Bladderwort
Blechnum
Blinks
Blitum
Bluebell
Blue-eyed-grass
Blue-eyed-Mary
Blue-heath
Blue-moor-grass
Blue-sowthistle
Blysmus
Bog-asphodel
Bog-bean
Bog-myrtle
Bog-orchid
Bog-pimpernel
Bog-rosemary
Bog-rush
Bolboschoenus
Boraginaceae
Borage
Borage-family
Borago
Boston-ivy
Botrychium
Box
Box, carpet
Brachyglottis
Brachypodium
Bracken
Bramble
Brassica
Brassicaceae
Bridal-spray
Bridewort
Bristle-grass
Briza
Broadleaf, New-Zealand
Brome
Brome, barren
Brome, hairy
Bromopsis
Bromus
Brookweed
Broom
Broom, Spanish
Broomrape
Broomrape, yarrow
Brunnera
Bryonia
Bryony, black
Bryony, white
Buckler-ferns
Buckthorn
Buck's-beard
Buckthorn,sea
Buckwheat
Buddleja
Bugle
Bugloss
Buglossoides
Bullwort
Bulrush
Bunium
Bupleurum
Bur-chervil
Bur-marigold, trifid
Burdock
Burnet, greater
Burnet-saxifrage
Burnt-tip-orchid
Bur-reed
Bur-weed
Butcher's-broom
Butomaceae
Butomus
Butterbur
Buttercup
Buttercup-family
Butterfly-bush
Butterfly-orchid
Butterfly-stonecrop
Butterwort
Buttonweed
Buxaceae
Buxus
C
Cabbage
Cabbage, Isle-of-Man
Cakile
Calamagrostis
Calamint, common
Calendula
Californian-brome
Californian-poppy
Calocedrus
Calystegia
Callitrichaceae
Callitriche
Calluna
Caltha
Camassia
Cambridge-milk-parsley
Camelina
Campanula
Campanulaceae
Campion
Canary-grass
Candytuft
Cannabaceae
Cannabis
Cape-figwort
Cape-gooseberry
Cape-lily, Powell's
Cape-pondweed
Caprifoliaceae
Capsella
Caraway, whorled
Cardamine
Carduus
Carex
Carlina
Carline-thistle
Carnation
Carpinus
Carpobrotus
Carrot
Carrot, moon
Carum
Caryophyllaceae
Castanea
Caster-oil
Catabrosa
Catapodium
Catchfly
Cat-mint
Cat's-ear
Cedar
Cedar, incense
Cedar, Japanese
Cedar, Western-red
Cedrus
Celandine, greater
Celandine, lesser
Celastraceae
Celery, wild
Centaurea
Centaurium
Centaury
Centaury, yellow
Centranthus
Centunculus
Cephalanthera
Cephalaria
Cerastium
Ceratocapnos
Ceratophyllaceae
Ceratochloa
Ceterach (=Asplenium)
Chaenomeles
Chaenorhinum
Chaenostoma
Chaerophyllum
Chaffweed
Chamaemelum
Chamaenerion
Chamerion (=Chamaenerion)
Chamomile (Anthemis)
Chamomile (Chamemelum)
Chamomile (Cota)
Chamomile, Austrian
Chamomile, yellow
Chara
Characeae
Charlock
Checker-tree
Chelidonium
Chenopodiastrum
Chenopodium
Cherleria
Cherry
Cherry, cornelian
Cherry-laurel
Chervil
Chestnut, horse
Chestnut, sweet
Chichory
Chickweed
Chickweed, mouse-ear
Chickweed, upright
Chickweed, water
Chickweed-wintergreen
Chilean-plum-yew
Chinese-teaplant
Chionodoxa
Chives
Chokeberry
Chrysanthemum
Chrysosplenium
Cicendia
Cicerbita
Cichorium
Cicuta
Cineraria
Cinquefoil
Cinquefoil, marsh
Cinquefoil, shrubby
Circaea
Cirsium
Cistaceae
Cladium
Clary
Claytonia
Cleavers
Clematis
Clematis
Climbing-corydalis
Clinopodium
Cloudberry
Clover
Clubmoss
Clubmoss, alpine
Clubmoss, lesser
Clubmoss, marsh
Club-rush, bristle
Club-rush, grey
Club-rush, sea
Club-rush, wood
Clustered-bellflower
Coast-redwood, coast
Cochlearia
Cock's-foot
Cockspur
Coeloglossum
Coincya
Colchicaceae
Colchicum
Colt's-foot
Colt's-foot, purple
Columbine
Comarum
Comfrey
Commelinaceae
Commelina
Coneflower
Conifers
Conium
Conopodium
Consolida
Convallaria
Convolvulaceae
Convolvulus
Conyza
Corallorhiza
Coral-bells
Coralberry
Coral-necklace
Coralroot
Coralroot-orchid
Cord-grass
Cordyline
Coriander
Coriandrum
Cornaceae
Cornelian-cherry
Corn-marigold
Corncockle
Cornish-moneywort
Cornsalad
Cornus
Coronilla
Corrigiola
Cortaderia
Corydalis
Corydalis, climbing
Corylus
Corynephorus
Cosmos
Cota
Cotoneaster
Cotinus
Cottongrass
Cotton-thistle
Cotula
Couch-grass
Couch, bearded
Cowbane
Cowberry
Cow-parsley
Cowslip
Cowslip, Tibetan
Cow-wheat
Crambe
Cranberry
Crane's-bill
Crassula
Crassulaceae
Crataegus
Creeping-Jenny
Creeping-lady's-tresses
Crepis
Cress, winter
Crimson-Clover
Crinum
Crithmum
Crocosmia
Crocus
Crocus
Crocus, autumn
Crosswort
Crowberry
Crowfoot
Crown-vetch
Cruciata
Cryptogramma
Cryptomeria
Cuckooflower
Cucumber-family
Cucumber, Squirting
Cucurbitaceae
Cudweed (Filago)
Cudweed (Gnaphalium)
Cudweed (Logfia)
Cudweed (Omalotheca)
Cudweed, cape (Pseudognaphalium)
Cudweed, Jersey (Laphangium)
Cunninghamia
Cupressaceae
Cupressus
Currant
Curved-sedge
Cuscuta
Cyclamen
Cyclamen
Cymbalaria
Cynara
Cynodon
Cynoglossum
Cynosurus
Cyperus
Cyperaceae
Cyphel
Cypress, Sawara
Cypress, swamp
Cypress, Leyland
Cypress, Monterey
Cypripedium
Cyrtomium
Cystopteris
Cytisus
D
Daboecia
Dactylis
Dactylorhiza
Daisy
Daisy-bush
Daisy-bush, S. African
Daisy-family
Daisy, Shasta
Daffodil
Daffodil-family
Damasonium
Damson
Dame's-violet
Dandelion
Danthonia
Daphne
Darmera
Dasiphora
Datura
Daucus
Dawn-redwood
Day-lily
Deadly-nightshade
Dead-nettle
Deergrass
Delairea
Delosperma
Dense-flowered-orchid
Deschampsia
Descurainia
Devil's-bit-scabious
Dewplant
Dewplant, pale
Dewplant, purple
Dianthus
Diapensia
Diapensiaceae
Diaphanous-Bladder-fern
Digitalis
Digitaria
Dill
Dioscoreaceae
Diphasiastrum
Diplotaxis
Dipsacaceae
Dipsacus
Disphyma
Dock
Dodder
Dog's-mercury
Dog's-tail-grass
Dog's-tooth-violet
Dogwood
Doronicum
Douglas-fir
Draba
Drabella
Dropseed
Drosanthemum
Drosera
Droseraceae
Dryas
Drymochloa
Dryopteris
Duckweed
Duke-of-Argyll's-teaplant
E
Early-sand-grass
Echballium
Echinochloa
Echinops
Echium
Eel-grass
Egeria
Ehrharta
Elaeagnaceae
Elaeagnus
Elder
Elecampane
Eleocharis
Eleogiton
Elephant-ears
Elm
Elodea
Elymus
Elytrigia
Empetrum
Enchanter's-nightshade
Epilobium
Epimedium
Epipactis
Equisetaceae
Equisetum
Eranthis
Erica
Ericaceae
Erigeron
Erinus
Eriophorum
Erodium
Erophila
Eruca
Ervilia
Ervum
Eryngium
Eryngo, Blue
Erysimum
Erythranthe
Erythronium
Escallonia
Eschscholzia
Eucalyptus
Euonymus
Eupatorium
Euphorbia
Euphorbiaceae
Euphrasia
Euryops
Evening-primrose
Everlasting, mountain
Eyebright
F
Fabaceae
Fagaceae
Fagus
Fagopyrum
Fairy-foxglove
Falcaria
Fallopia
False-acacia
False-brome
False-oat-grass
False-sedge
Fat-hen
Fatsia
Fatsia
Feathertop-grass
Fennel
Fenugreek
Fern-grass
Fern, water
'Ferns'
Fescue
Fescue, meadow
Fescue, wood
Festuca
Feverfew
Ficaria
Fiddleneck
Field Scabious
Figwort
Figwort-family
Filago
Filipendula
Filmy-fern
Finger-grass
Fir
Fir-Douglas
Firethorn
Fireweed
Fish-plant
Flat-sedge
Flax
Fleabane (Erigeron)
Fleabane (Inula)
Fleabane (Pulicaria)
Fleabane, Alpine
Fleawort, South-Stack
Flixweed
Floating-clubrush
Flowering-rush
Fluellen
Fly-orchid
Foeniculum
Fool's-parsley
Forget-me-not
Forget-me-not, great
Forget-me-not, white
Forsythia
Fox-and-cubs
Foxglove
Foxtail
Fragaria
Fragrant-orchid
Frangula
Frankenia
Frankeniaceae
Fraxinus
Freesia
Friar's Cowl
Fringecups
Fritillaria
Frog-orchid
Fuchsia
Fumaria
Fumitory
G
Gagea
Galanthus
Galatella
Galega
Galeopsis
Galingale
Galinsoga
Galium
Gallant-soldier
Garden-rocket
Garlic
Garlic mustard
Garrya
Garryaceae
Gaultheria
Gazania
Genista
Gentian
Gentiana
Gentianaceae
Gentianella
Geranium
Geraniaceae
German-ivy
Germander
Geum
Ginkgo
Ginkgoaceae
Giant-redwood
Gilia
Gipsywort
Gladiolus
Gladiolus
Gladiolus, wild
Glasswort
Glaucium
Glaux
Glebionis
Guizotia
Glechoma
Globeflower
Globe-artichoke
Globe-thistle
Glory-of-the-snow
Glyceria
Gnaphalium
Goat's-beard
Goat's-rue
Gold-of-pleasure
Goldilocks-buttercup
Golden-rod
Golden-samphire
Golden-saxifrage
Goldilocks-aster
Good-King-Henry
Goodyera
Gooseberry
Gooseberry, cape
Goosefoot
Gorse
Goutweed
Grape
Grape-hyacinth
Grasses
Grass-of-Parnassus
Grass-poly
Great-forget-me-not
Greater-celandine
Great-fen-sedge
Great-Woodrush
Green-winged orchid
Greenweed
Grey-hair-grass
Griselinia
Griseliniaceae
Groenlandia
Gromwell, common
Gromwell, field
Grossulariaceae
Ground-elder
Ground-ivy
Groundsel
Guelder-rose
Guernsey lily
Guizotia
Gum-tree
Gunnera
Gymnadenia
Gymnocarpium
Gymnospermae
H
Hair-grass (Aira)
Hair-grass (Koeleria)
Hair-grass, bog
Hair-grass, grey
Hair-grass, tufted
Hair-grass, wavy
Hairy-brome
Haloragaceae
Hammarbya
Hard-fern
Hard-grass
Harebell
Hare's-ear
Hare's-tail
Hart's-tongue
Hazel
Hawkbit
Hawk's-beard
Hawkweeds
Hawthorn
Heath
Heath, prickly
Heath-grass
Heather
Heathers
Hebe (see Veronica)
Hedera
Hedge-mustard
Hedge-parsley
Hedlundia
Helianthemum
Helianthus
Helictochloa
Heliotrope
Hellebore
Helleborine (Cephalanthera)
Helleborine (Epipactis)
Helleborine, false
Helleborus
Helminthotheca
Helosciadium
Hemerocallis
Hemlock
Hemlock, Western
Hemp
Hemp-agrimony
Hemp-nettle
Henbane
Henbit-dead-nettle
Heracleum
Herb-Paris
Herb-Robert
Herminium
Herniaria
Hesperis
Heuchera
Hiba
Hieracium
Hierochloe
Himalayan-balsam
Himalayan-honeysuckle
Himalayan-knotweed
Himantoglossum
Hippocrepis
Hippophae
Hippuridaceae
Hippuris
Hirschfeldia
Hogweed
Holcus
Holly
Holly-fern
Holly-fern, House
Hollyhock
Holy-grass
Holly-leaved Senecio
Homogyne
Honckenya
Honesty
Honewort
Honey-garlic
Hop
Hop-sedge
Honeysuckle
Hordelymus
Hordeum
Horehound, black
Horehound, white
Hornbeam
Horned-poppy
Hornungia
Hornwort
Horse-chestnut
Horse-radish
Horseshoe-vetch
Horsetail
Hottentot-fig
Hottonia
Hound's-tongue
House-Holly-fern
House-leek
Houttuynia
Humulus
Hutchinsia
Hyacinth
Hyacinth, grape
Hyacinth, tassel
Hydrocharitaceae
Hyacinthoides
Hyacinthus
Hydrangea
Hydrangeaceae
Hydrocotylaceae
Hydrocotyle
Hydrophyllaceae
Hylotelephium
Hymenophyllum
Hyoscymus
Hypericaceae
Hypericum
Hypochaeris
Hypopitys
Hyssop
Hyssopus
I
Iberis
Iceplant
Ilex
Illecebrum
Impatiens
Imperatoria
Incense-cedar
Inula
Ipheon
Iridaceae
Iris
Isatis
Isoetes
Isoetaceae
Isolepis
Ivy
Ivy-leaved-toadflax
J
Jacobaea
Jasione
Jacob's-ladder
Japanese-knotweed
Japanese-lantern
Japanese-cedar
Japanese-wineberry
Japonica
Jasmine, winter
Jasminum
Jersey-cudweed
Jersey-fern
Jersey-lily
Jersey-orchid
Jersey-pigmy-weed
Jerusalem-artichoke
Jo-Jo-weed
Jonquil
Juglandaceae
Juncaceae
Juncaginaceae
Juncus
June berry
Juniper
Juniperus
K
Kalmia
Kale, sea
Kangaroo-apple
Kickxia
Kidney-vetch
Knapweed
Knautia
Knawel
Kniphofia
Knotweed (Fallopia)
Knotweed (Persicaria)
Knotweed (Koenigia)
Knotweed, Japanese
Kobresia
Koeleria
Koelreuteria
Koenigia
L
Laburnum
Lactuca
Lady-fern
Lady's-mantle
Lady-orchid
Lady's-slipper
Lady's-tresses
Lagarosiphon
Lagurus
Lamb's-ear
Lamiaceae
Lamiastrum
Lamium
Lampranthus
Laphangium
Lapsana
Larch
Larix
Lathraea
Lathyrus
Larkspur
Lauraceae
Laurel
Laurel, Portugal (Portuguese)
Laurel, spotted
Laurus
Lavender, sea
Lawn-lobelia
Lawson-cypress
Leek
Legousia
Lemna
Lemnaceae
Lemon-scented-fern
Lens
Lentibulariaceae
Lenten-rose
Lentil
Leontodon
Leontodon-(see also Scorzoneroides)
Leonurus
Leopard plant
Leopard's-bane
Lepidium
Leptinella
Lesser-water-plantain
Lettuce
Leucanthemum
Leucojum
Levisticum
Leyland-cypress
Leymus
Leycesteria
Ligularia
Ligusticum
Ligustrum
Liliaceae
Lilium
Lily
Lily, African
Lily, Bugle
Lily, Cape
Lily, Guernsey
Lily, Jersey
Lily, Madonna
Lily, Snowdon
Lily-of-the-valley
Limbarda
Lime
Limestone-fern
Limonium
Limosella
Linaceae
Ling
Linum
Linaria
Linnaea
Lipandra
Liquidambar
Liquidambar
Liquorice, wild
Liriodendron
Lithospermum
Little-Robin
Littorella
Liverworts
Lizard-orchid
Lobelia
Lobelia, Lawn
Lobularia
Logfia
London-pride
Longleaf
Loiseleuria (see Kalmia)
Lolium
Lonicera
Loosestrife, purple
Loosestrife, yellow
Lords-and-Ladies
Lotus
Lousewort
Lovage
Love-lies-bleeding
Ludwigia
Lunaria
Lungwort
Lupin
Lupinus
Luronium
Luzula
Lychnis (see Silene)
Lycium
Lycopersicon
Lycopodiaceae
Lycopodiella
Lycopodium
Lycopsis
Lycopus
Lyme-grass
Lysichiton
Lysimachia
Lythraceae
Lythrum
M
Madder
Madder, field
Madeira, Pride-of
Maianthemum
Maidenhair
Maidenhair-spleenwort
Maidenhair-tree
Maize
Magnoliaceae
Mahonia
Male-ferns
Mallow
Mallow-family
Malus
Malva
Malvaceae
Mangelwurzel
Maple
Mare's-tail
Marigold
Marigold, corn
Marigold, marsh
Marjoram
Marram-grass
Marrubium
Marsh-cinquefoil
Marsh-fern
Marsh-gentian
Marshmallow
Marsh-marigold
Marsh-orchid
Marshwort
Marsileaceae
Marvel-of-Peru
Masterwort
Mat-grass
Matricaria
Matteucia
Matthiola
May-Lily
Mayweed
Mayweed
Meadow-grass
Meadow-rue
Meadowsweet
Meconopsis
Medicago
Medick
Medlar
Melampyrum
Melanthiaceae
Melica
Melick
Melilot
Melilotus
Melissa
Mentha
Menyanthaceae
Menyanthes
Mercurialis
Mercury
Mertensia
Mespilus
Metasequoia
Meum
Mezereon
Mibora
Michaelmas-daisy
Micranthes
Mignionette
Milium
Milk-parsley
Milk-parsley, Wallich
Milk-thistle
Milk-vetch
Milkwort
Milkwort, sea
Millet, common
Millet, wood
Mimulus (=Erythranthe)
Mind-your-own-business
Mint
Minuartia
Mirabilis
Misopates
Mistletoe
Mock-orange
Moenchia
Moehringia
Molinia
Moneses
Monkeyflower
Monkey-puzzle
Monkshood
Montbretia
Monterey-cypress
Montia
Montiaceae
Moon-carrot
Moonwort
Moraceae
Morus
Moschatel
Mosses
Mossy stonecrop
Motherwort
Mountain-avens
Mountain-azalea
Mountain-everlasting
Mountain-sorrel
Mouse-ear
Mouse-ear-hawkweeds
Mousetail
Mousetail
Mudwort
Muehlenbeckia
Mugwort
Mulberry
Mullein
Muscari
Musk
Musk-orchid
Mustard, black
Mustard, hedge
Mustard, white
Mustard, garlic
Mycelis
Myosotis
Myosoton
Myosurus
Myrica
Myricaceae
Myriophyllum
Myrrhis
Myrtaceae
Myrtle
Myrtus
N
Nannyberry
Narcissus
Nardus
Nartheciaceae
Narthecium
Nassella
Nasturtium
Navelwort
Nectaroscordum
Needle-grass
Nemesia
Neotinea
Neottia
Nepeta
Nerine
Nettle, stinging
New-Zealand-broadleaf
New-Zealand-spinach
Nicandra
Niger
Nightshade, black
Nightshade, deadly
Nightshade, enchanter's
Nightshade, green
Nightshade, tall
Ninebark
Nipplewort
Nitella
Nyctaginaceae
Nuphar
Nymphaea
Nymphaeaceae
Nymphoides
O
Oak
Oak-fern
Oat
Oat-grass, downy
Oat-grass, meadow
Oat-grass, false
Odontites
Oenanthe
Oenothera
Oleaceae
Olearia
Oleaster
Olive
Omphalodes
Omalotheca
Onagraceae
Onion
Onobrychis
Onoclea
Ononis
Onopordum
Ophioglossum
Ophrys
Orache
Orange-ball-tree
Orchid
Orchidaceae
Orchis
Origanum
Oregon-grape
Oreopteris
Ornithogalum
Ornithopus
Orobanchaceae
Orobanche
Orpine
Orthilia
Osmanthus
Osmunda
Ostrich-fern
Oxalidaceae
Oxalis
Ox-eye-daisy
Oxlip
Oxtongue, bristly
Oxtongue, hawkweed
Oxybasis
Oxyria
Oxytropis
Oysterplant
P
Pachyphragma
Pachysandra
Pale-dewplant
Pampas-grass
Panic-Veldt-grass
Panicum
Pansy
Papaver
Papaveraceae
Papyrus
Parapholis
Parentucellia
Parietaria
Paris
Parnassia
Parrot-feather
Parsley
Parsley-fern
Parsley, Cambridge-milk
Parsley, corn
Parsley, garden
Parsley, milk
Parsley-piert
Parsley, stone
Parsnip, water
Parsnip, water, greater
Parsnip, wild
Parthenocissus
Pasque-flower
Pastinaca
Pea
Pea-family
Pear
Pearlwort
Pedicularis
Pellitory
Pencil-pine
Pennisetum
Penny-cress
Penny-cress, Caucasian
Pennyroyal
Pennywort (=Navelwort)
Pennywort, marsh
Pentaglottis
Pepper-saxifrage
Pepperwort
Pericallis
Periwinkle
Peruvian-lily
Persicaria
Petasites
Petrorhagia
Petrosedum
Petroselinum
Petty-whin
Petunia
Peucedanum
Phacelia
Phalaris
Pheasant's-eye narcissus
Phegopteris
Phelipanche
Philadelphus
Phleum
Phlomis
Phlox
Photinia
Phragmites
Phrymacaceae
Phygelius
Phyllodoce
Physalis
Physocarpus
Phyteuma
Picea
Pick-a-back-plant
Picris
Picris (see also Helminthotheca)
Pigface
Pigmyweed
Pignut
Pignut, greater
Pigweed
Pillwort
Pilosella
Pilularia
Pimpernel
Pimpinella
Pinaceae
Pine
Pine, Corsican
Pine, Lodgepole
Pine, pencil
Pine, Scots
Pinguicula
Pink (Petrorhagia)
Pink (Dianthus)
Pink-family
Pinus
Pirri-pirri
Pisum
Pitcherplant
Pitchforks
Pittosporum
Plagiobothrys>
Plane
Plantain
Plantain, water
Plantaginaceae
Plantago
Platanthera
Platanaceae
Plantanus
Platycladus
Ploughman's-spikenard
Plum
Plumbaginaceae
Poa
Poaceae
Podocarpaceae
Polemonaceae
Polemonium
Policeman's-helmet
Polycarpon
Polygala
Polygalaceae
Polygonaceae
Polygonatum
Polygonum
Polypodium
Polypody
Polypogon
Polystichum
Pondweed
Pondweed, Canadian
Pondweed, Cape
Poplar
Poppy
Poppy, horned
Poppy, prickly
Populus
Portulaca
Portulacaceae
Potamogeton
Potamogetonaceae
Potato
Potato-family
Potentilla
Poterium
Pratia
Prickly-saltwort
Pride-of-India
Primrose
Primrose-family
Primula
Primulaceae
Privet
Prumnopitys
Prunella
Prunus
Pseudofumaria
Pseudognaphalium
Pseudorchis
Pseudosasa
Pseudotsuga
Pseudoturritis
Pteridium
Puccinellia
Pulicaria
Pulmonaria
Pulsatilla
Purple-coltsfoot
Purple-dewplant
Purple-moor-grass
Purslane
Purslane, common
Purslane, Hampshire
Purslane, iceland
Purslane, sea
Purslane, water
Puschkinia
Pyrola
Pyracantha
Pyramidal-orchid
Pyrus
Q
Quaking-grass
Quamash
Quercus
Quillwort
Quince, Japanese
Quinoa
R
Radiola (=Linum)
Radish
Ragweed
Ragwort
Ragwort, Woad-leaved
Rampion
Ramsons
Rannoch-rush
Ranunculaceae
Ranunculus
Rape
Raphanus
Raspberry
Rattle, yellow
Red-cedar, Western
Red-hot-poker
Redshank
Redwood, coast
Redwood, dawn
Redwood, giant
Reed, common
Reedmace
Reseda
Resedaceae
Restharrow
Reynoutria
Rhamnaceae
Rhamnus
Rheum
Rhinanthus
Rhodiola
Rhododendron
Rhubarb
Rhubarb, Giant
Rhubarb, Indian
Rhus
Rhynchospora
Ribes
Ricinus
Robinia
Rock-cress
Rock-cress, Northern
Rock-rose
Rocket, Eastern
Rocket, Garden
Rocket, Sea
Rocket, Wall
Rock-samphire
Roemeria
Romulea
Rorippa
Rosa
Rosaceae
Rose
Rose-of-Sharon
Rosebay-willowherb
Rosemary
Rosemary, bog
Roseroot
Rosmarinus
Rowan
Royal-fern
Rubia
Rubiaceae
Rubus
Rudbeckia
Rue
Rumex
Rupture-wort
Ruscus
Rush
Rush, flowering
Russian-vine
Rustyback-fern
Ruta
Rutaceae
Ryegrass
S
Sabulina
Saffron (Autumn Crocus)
Saffron, Meadow
Sage, Jerusalem
Sage, Turkish
Sage, wood
Sagina
Sagittaria
Sainfoin
Salad-burnet
Salicaceae
Salicornia
Salix
Salmonberry
Salsify
Salsola
Saltmarsh-grass
Salvia
Sambucus
Samolus
Samphire, rock
Sand-crocus
Sand-grass, early
Sand-leek
Sandwort (Arenaria)
Sandwort (Minuartia)
Sandwort (Sabulina)
Sandwort, mossy
Sandwort, sea
Sandwort, three-veined
Sanguisorba
Sanicula
Sanicle
Santalaceae
Sapindaceae
Saponaria
Sarcocornia
Sarracenia
Sarraceniaceae
Satureja
Saururaceae
Saussurea
Savory, winter
Sawara-cypress
Saw-wort
Saw-wort, alpine
Saxifraga
Saxifragaceae
Saxifrage
Saxifrage, burnet
Saxifrage, golden
Saxifrage, marsh
Saxifrage, pepper
Scabiosa
Scabious
Scabious, devil's-bit
Scabious, small
Scandix
Scarlet-pimpernel
Schedonorus
Scheuchzeria
Scheuchzeriaceae
Schoenus
Schoenoplectus
Sciadopitys
Scilla
Scirpus
Scleranthus
Scorpion-senna
Scorpion-vetch
Scorzoneroides
Scot's-lovage
Scots Pine
Scottish-asphodel
Scrophularia
Scrophulariaceae
Scurvygrass
Scutellaria
Securigera
Sea-beet
Sea-blite
Sea-buckthorn
Sea-heath
Sea-holly
Sea-kale
Sea-lavender
Sea-lilac
Sea-pink
Sea-milkwort
Sea-purslane
Sea-rocket
Sea-sandwort
Sea-spurrey
Sea-stock
Sea-wormwood
Sedge
Sedge, false
Sedges
Sedum
Selaginella
Selaginellaceae
Self-heal
Selinum
Sempervivum
Senecio
Senna,scorpion
Sensitive-fern
Sequoia
Sequoiadendron
Seraphidium (see Artemisia)
Serapias
Serratula
Service-tree
Seseli
Sesleria
Setaria
Sheepberry
Sheep's-bit
Shepherd's-cress
Shepherd's-needle
Shepherd's-purse
Sherardia
Shield-fern
Shoreweed
Sibbaldia
Sibthorpia
Silaum
Silene
Silybum
Simaroubaceae
Sinapis
Sison
Sisymbrium
Sisyrinchium
Sitka-spruce
Sium
Skirret
Skullcap
Skunk cabbage
Skullcap
Skunk cabbage
Small-reed
Small-white-orchid
Small-reed
Smokebush
Smyrnium
Snapdragon
Snapdragon, trailing
Snowberry
Snowdon-lily
Snowdrop
Snowflake
Snow-in-summer
Soapwort
Soft-grass, creeping
Solanaceae
Solanum
Soleirolia
Solidago
Solomon-seal
Solomon-seal, False
Sonchus
Sorbus
Sorghum
Sorghum
Sorrel
Sorrel, mountain
Sowbread
Sowthistle
Sowthistle, alpine
Sowthistle, blue
Spanish-broom
Spanish-dagger
Sparganium
Spartina
Spartium
Speedwell
Spergula
Spergularia
Spider-orchid
Spiderwort
Spignel
Spike-rush
Spinach, New-Zealand
Spinach, Tree
Spindle
Spiraea
Spiranthes
Spirodela
Spleenwort
Sporobolus
Spotted-laurel
Spotted-orchid
Spring-beauty
Spruce
Spurge
Spurrey
Squill
Squill, striped
Squinancywort
Stachys
Stag's-horn
St. Dabeoc's heath
St. John's-wort
Star-flower
Starfruit
Star-of-Bethlehem
Star-of-Bethlehem, yellow
Star-thistle, rough
Starwort, water
Stellaria
Sternbergia
Stipa
Stitchwort
Stock
Stone-parsley
Stonecrop
Stonewort
Stork's-bill
Strapwort
Stranvaesia
Strawberry
Strawberry-tree
Stuckenia
Suaeda
Subularia
Succisa
Sugar-beet
Sumach
Sundew
Sunflower
Susan, black-eyed
Sutera
Swamp-cypress
Sweet-cicely
Sweet-flag
Sweet-grass
Sweetgum
Sweet-vernal-grass
Sweet-William
Swinecress
Sycamore
Symphoricarpos
Symphyotrichum
Symphytum
T
Tamarisk
Tamarix
Tamus
Tanacetum
Tansy
Taraxacum
Tare, hairy
Tare, smooth
Tarragon
Tassel-hyacinth
Taxaceae
Taxodium
Taxus
Teasel
Teaplant, Duke-of-Argyll's
Teesdalia
Tephroseris
Tellima
Tetragonia
Teucrium
Thale-cress
Thalictrum
Thelypteris
Thesium
Thimbleflower
Thistle (Carduus)
Thistle (Cirsium)
Thistle, carline
Thistle, cotton
Thistle, globe
Thistle, musk
Thlaspi
Thornapple
Thrift
Thrift-family
Thuja
Thuja, Oriental
Thujopsis
Thunbergia
Thyme
Thymelaeaceae
Thymus
Thyselium
Thysselinium
Tibetan-cowslip
Tilia
Timothy-grass
Toadflax
Toadflax, ivy-leaved
Toadflax, small
Tofieldia
Tofieldiaceae
Tolmiea
Tomato
Tongue-orchid
Toothpick-plant
Toothwort
Tomato
Tongue-orchid
Toothpick-plant
Toothwort
Torilis
Town-hall-clock
Trachystemon
Tradescantia
Tragopogon
Tree-of-heaven
Trefoil
Trichophorum
Trientalis
Trifolium
Triglochin
Trigonella
Trinia
Tripleurospermum
Tripolium
Trisetum
Tristagma
Triticum
Trocdaris
Trollius
Tropaeolum
Tsuga
Tuberaria
Tufted-hairgrass
Tulip
Tulip-tree
Tulipa
Tunicflower
Turnip, wild
Tussilago
Tutsan
Twayblade
Twinflower
Typha
Typhaceae
U
Ulex
Ulmaceae
Ulmus
Umbellifers
Umberella-papyrus
Umberella-pine, Japanese
Umbilicus
Upright-chickweed
Urtica
Urticaceae
Utricularia
V
Vaccinium
Valerian
Valeriana
Valerianaceae
Valerianella
Veldt-grass, Panic
Venus's-comb
Venus's-looking-glass
Veratrum
Verbascum
Verbena
Verbenaceae
Veronica
Veronicaceae
Vervain
Vetch
Vetch, kidney
Vetch, wood
Viburnum
Vicia
Vinca
Viola
Violaceae
Violet
Violet, dog's-tooth
Violet, water
Viper's-bugloss
Virginia-creeper
Viscum
Visnaga
Vitaceae
Vulpia
W
Wandering-jew
Wayfaring tree
Wall-lettuce
Wall-rocket
Wallflower
Walnut
Water-bent
Water-chickweed
Water-cress
Water-crowfoot
Water-dropwort
Water-fern
Water-lily
Water-lily, fringed
Water-lily, yellow
Water-lily, white
Water-milfoil
Water-parsnip, greater
Water-parsnip, lesser
Water-pepper
Water-plantain
Water-plantain, floating
Water-starwort
Waterweed
Waterweed, curly
Watsonia
Wavy-hairgrass
Weasel's-snout
Weld
Wellingtonia
Welsh-poppy
Western-Hemlock
Western-red-cedar
Wheat
Wild-service-tree
Whin, petty
Whitebeam
White-bryony
Whitlowgrass
Whitlowgrass, hoary
Whitlowgrass, wall
Whorl-grass
Wild-basil
Willows
Willowherb
Willowherb-family
Winter-aconite
Winter-cress
Winter-cress, American
Winter-heliotrope
Wintergreen
Wintergreen, chickweed
Wintergreen, one-flowered
Wintergreen, serrated
Winter-savory
Wire-plant
Witchgrass
Woad
Wolf's-bane
Wood-anemone
Wood-club-rush
Wood-fescue
Wood-millet
Wood-sage
Woodsia
Wood-sorrel
Woodruff
Woodrush
Wolffia
Wormwood
Woundwort
X/Y/Z
Xanthorrhoeaceae
Yarrow
Yellow-archangel
Yellow-autumn-crocus
Yellow-bartsia
Yellow-centaury
Yellow-cress
Yellow-loosestrife
Yellow-oat-grass
Yellow-pimpernel
Yellow-rattle
Yellow-wort
Yew
Yew, Chilean-Plum
Yorkshire-fog
Yucca
Zannichellia
Zantedeschia
Zea
Zig-zag-clover
Zostera