An Illustrated Flora of the Northern United States and Canada
Medicinal Plant excerpts
Michael’s Commentary: Nathaniel Lord Britton (1857-1934) was the first director-in-chief of The New York Botanical Garden and a giant of a taxonomist. From 1896 to 1898 he published the three-volume landmark floristic study An Illustrated Flora of the Northern United States and Canada (Brown financed it), and revised it again in 1913. There are about 4,600 monographs, each illustrated, with a terse taxonomic description and approximate distribution…little capsuled data kernels that I have scanned and updated botanically. It was revised in 1956 by Gleason, but that version is still copyrighted, so here I am with these three monster books from 1913. Dover has also published these titles, which are still readily available…haven’t seen them, just have my three big maroon volumes.
I have extracted all the plants that have substantial therapeutic use, either pharmaceutical or herbal, by the eclectic or physio-medicalist or homeopathic medical sects of the time, or that have widespread former or current Native American use. I have cut some corners…there are 39 Salix monographs, all willows are useful, so I have included the four most widely used species. Some herbs may seem obscure, but I know them to be of value. Some plants are at risk or endangered…were then, are now. I just figure knowledge is power, and as much of this site is heavily tilted towards the North American West, this is some broadening of scope.
All files are gifs, and approximately 1000 X 650 pixels and 30 to 40 K in size.
VOLUME II – Amaranthaceae to Loganaceae
- Abronia_fragrans.gif – White Abronia, White Sand Verbena
- Abutilon_theophrasti.gif – Indian Mallow
- Acacia_angustissima.gif – Prairie Acacia
- Acalypha_ostryifolia.gif – Three-seed Mercury
- Acalypha_virginica.gif – Wild Mercury
- Acer_negundo.gif – Box Elder
- Acer_nigrum.gif – Black Sugar Maple
- Acer_pennsylvanicum.gif – Striped or Northern Maple
- Acer_saccarum.gif – Sugar Maple
- Aconitum_noveboracense.gif – New York Monkshood
- Aconitum_reclinatum.gif – Trailing Aconite, Trailing Wolfbane
- Aconitum_uncinatum.gif – Wild Monkshood, Wild Wolfbane
- Actaea_alba.gif – Red Baneberry
- Actaea_rubra.gif – White Baneberry, Doll’s Eyes
- Adonis_annua.gif – Pheasant’s Eye, Blooddrops
- Aesculus_glabra.gif – Ohio Buckeye
- Aesculus_hippocastanum.gif – Horse Chestnut
- Aesculus_pavia.gif – Red Buckeye
- Aethusa_cynapium.gif – Fool’s Parsely
- Agrimonia_gryposepala.gif – Tall Hairy Agrimony
- Agrimonia_striata.gif – Roadside Agrimony
- Agrostemma_githago.gif – Corn Cockle
- Ailanthus_altissima.gif – Tree of Heaven
- Albizia_julibrissin.gif – Silk Tree, “Mimosa”
- Althea_officinalis.gif – Marsh Mallow
- Amaranthus_hybridus.gif – Slim Amaranth
- Amaranthus_palmeri.gif – Palmer’s Amaranth, Alegría
- Amaranthus_retroflexus.gif – Green Amaranth
- Amelanchier_alnifolia.gif – Saskatoon Serviceberry
- Amelanchier_canadensis.gif – Northern Serviceberry
- Ammi_majus.gif – Bishop’s Weed
- Amorpha_canescens.gif – Leadplant, Buffalo Roar
- Amorpha_fruticosa.gif – False Indigo
- Anagallis_arvensis.gif – Scarlet Pimpernel
- Anemone_canadensis.gif – Canadian Anemone,
- Anemone_cylindrica.gif – Candle Anemone,
- Anemone_virginiana.gif – Tall Anemone
- Anethum_graveolens.gif – Dill
- Angelica_atropurpurea.gif – Great Angelica
- Angelica_lucida.gif – Angelica archangelica, Archangel
- Angelica_triquinata.gif – Filmy Angelica
- Angelica_venenosa.gif – Angelica hirsuta, Hairy Angelica
- Aphanes_arvensis.gif – Parsley Piert
- Apium_graveolens.gif – Celery
- Aquilegia_canadensis.gif – Wild or Red Columbine
- Arabis_drummondii.gif – Drummond’s Rock Cress
- Arabis_glabra.gif – Tower Rock Cress
- Aralia_hispida.gif – Bristly Aralia, Bristly “Sarsaparilla”
- Aralia_nudicaulis.gif – Wild “Sarsaparilla”, Northern Spikenard
- Aralia_racemosa.gif – American Spikenard
- Aralia_spinosa.gif – Devil’s Walking Stick, Hercules’ Club, Prickly Elder, Toothache Tree
- Arctostaphylos_uva-ursi.gif – Uva Ursi, Bearberry, “Kinnikinnick”
- Arenaria_fendleri.gif – Fendler’s Sandwort
- Argemone_albiflora.gif – White Prickly Poppy
- Argemone_mexicana.gif – Mexican Prickly Poppy
- Argemone_polyanthemos.gif – Crested Prickly Poppy
- Argentina_anserina.gif – Potentilla anserina, Silverweed
- Armoracia_rusticana.gif – Horseradish
- Aruncus_dioicus-vulgaris.gif – Goat’s Beard
- Asimina_triloba.gif – Papaw, Custard Apple
- Astragalus_americanus.gif – American Milkvetch
- Astragalus_canadensis.gif – Canadian or Carolina Milkvetch
- Astragalus_crassicarpus.gif – Groundplum Milkvetch
- Atriplex_argentea.gif – Silverscale Saltbush
- Atriplex_canescens.gif – Four Wing Saltbush
- Baptisia_alba.gif – White False Indigo
- Baptisia_australis.gif – Blue False Indigo
- Baptisia_leucantha.gif – Great False Indigo
- Baptisia_tinctoria.gif – False or Wild Indigo
- Barbarea_vulgaris.gif – Yellow Rocket, Bitter Cress
- Berberis_canadensis.gif – American Barberry
- Berberis_vulgaris.gif – European Barberry
- Berchemia_scandens.gif – Rhamnus scandens, Supplejack, Buckthorn Vine
- Brassica_campestris.gif – Turnip
- Brassica_juncea.gif – Indian Mustard
- Brassica_nigra.gif – Black Mustard
- Callirhoe_involucrata.gif – Purple Poppy-Mallow, Claret Cup
- Caltha_palustris.gif – Marsh Marigold
- Calycanthus_floridus.gif – Eastern Sweetshrub, Strawberry Bush
- Capsella_bursa-pastoris.jpg – Shepherd’s Purse
- Cardamine_concatenata.gif – Dentaria concatenata, Toothwort
- Cardamine_diphylla.gif – Dentaria diphylla, Two-leaved Toothwort
- Carum_carvi.gif – Caraway
- Cassia_marilandica.gif – Senna marilandica, American Senna
- Cassia_obtusifolia.gif – Senna obtusifolia, Low Senna
- Caulophyllum_thalictroides.gif – Blue Cohosh
- Ceanothus_americanus.gif – New Jersey Tea, Red Root
- Ceanothus_herbaceus.gif – New Jersey Tea, Red Root, Grub Root
- Celastrus_scandens.gif – American Bittersweet, Staff Tree
- Centella_asiatica.gif – Marsh Pennywort, Gotu Kola, Brahmi (see also Bacopa monnieri, Vol. 3)
- Cerastium_alpinum.gif – Alpine Chickweed
- Cerastium_arvense.gif – Meadow Chickweed
- Cerastium_vulgatum.gif – Common Chickweed
- Cercis_canadensis.gif – Red Bud
- Cercocarpus_montanus.gif – Mountain Mahogony
- Chamaecrista_fasciculata.gif – Cassia fasciculata, Partridge Pea, Prairie Senna
- Chamaesyce_fendleri.gif – Fendler’s Spurge or Sandmat
- Chamaesyce_maculata.gif – Spotted Spurge or Sandmat
- Chamaesyce_serpyllifolia.gif – Thyme-leaved Spurge
- Chelidonium_majus.gif – Greader Celandine
- Chenopodium_album.gif – Lamb’s Quarters, Quelites
- Chenopodium_ambrosioides.gif – American Wormseed,, Epazote
- Chenopodium_botrys.gif – Jerusalem oak, Yerba de Zorilla
- Chionanthus_virginica.gif – Fringe Tree
- Cicuta_maculata.gif – Water Hemlock
- Cimicifuga_americana.gif – American Bugbane, Black Cohosh
- Cimicifuga_racemosa.gif – Black Cohosh
- Claytonia_virginica.gif – Spring Beauty
- Clematis_crispa.gif – Marsh Leather Flower
- Clematis_ligusticifolia.gif – Western Virgin’s Bower
- Clematis_pitcheri.gif – Leather Flower
- Clematis_scottii.gif – Clematis hirsutissima var. scottii, Scott’s Leather Flower
- Clematis_virginiana.gif – Virgin’s Bower
- Cleome_serrulata.gif – Rocky Mountain Bee Plant
- Clethra_acuminata.gif – Sweet Pepper Bush
- Cnidoscolus_stimulosus.gif – Bull Nettle, Finger Rot, Mala Mujer
- Cocculus_carolinus.gif – Carolina Moonseed
- Cochlearia_officinalis.gif – Scurvy Grass
- Comarum_palustre.gif – Potentilla Palustris, Marsh Cinquefoil
- Conium_maculatum.gif – Poison Hemlock
- Coptis_trifolia.gif – Goldthread
- Coriandrum_sativum.gif – Coriander
- Cornus_alternifolia.gif – Alternate-leaved Dogwood, Green Osier
- Cornus_amomum.gif – Swamp Dogwood, Silky Cornel, Kinnikinnick
- Cornus_canadensis.gif – Bunchberry
- Cornus_florida.gif – Flowering Dogwood
- Cornus_rugosa.gif – Alder-leaved or Round-leaved Dogwood
- Cornus_sericea.gif – Cornus stolonifera, Red Osier, Red Willow, Kinnikinnick
- Corydalis_aurea.gif – Golden Smoke
- Corydalis_sempervirens.gif – Pink Corydalis, Rock Harlequin,
- Crataegus_chrysocarpa.gif – Fireberry Hawthorn
- Crataegus_cruz-galli.gif – Cockspur Hawthorn,
- Crataegus_douglasii.gif – Black Hawthorn
- Crataegus_monogyna.gif – Oneseeded Hawthorn
- Crataegus_pruinosa.gif – Waxyfruit Hawthorn,
- Crotalaria_sagittalis.gif – Rattle-box
- Croton_texensis.gif – Texas Croton, Guaco (NM)
- Cymopterus_montanus.gif – Mountain Parsley
- Cytisus_scoparius.gif – Scotch Broom
- Dalea_aurea.gif – Golden Prairie Clover
- Dalea_purpurea.gif – Purple Prairie Clover
- Daphne_mezereum.gif – Mezereon, Spurge Laurel
- Daucus_carota.gif – Wild Carrot, Queen Anne’s Lace
- Decodon_verticillatus.gif – Swamp Loosestrife
- Desmanthus_illinoensis.gif – Illinois Mimosa, Prairie Bundleflower
- Desmodium_illinoense.gif – Illinois Ticktrefoil,
- Desmodium_nudiflorum.gif – Nakedflower Ticktrefoil,
- Dicentra_canadensis.gif – Turkey Corn
- Dicentra_cucullaria.gif – Dutchman’s Breeches, Turkey Corn
- Diospyros_virginiana.gif – Persimmon
- Diphylleia_cymosa.gif – Umbrella-leaf
- Dirca_palustris.gif – Leatherwood
- Drosera_intermedia.gif – Spoonleaf Sundew
- Drosera_linearis.gif – Slenderleaf Sundew,
- Drosera_rodundifolia.gif – Roundleaf Sundew
- Empetrum_nigrum.gif – Black Crowberry
- Epigaea_repens.gif – Trailing Arbutus
- Epilobium_angustifolium.gif – Fireweed, Great Willow Herb
- Epilobium_hirsutum.gif – Hairy Great Willow Herb
- Eranthis_hyemalis.gif – Helleborus hyemalis, Hellebore, Winter Aconite
- Erodium_cicutarium.gif – Storksbill, Alfiliria
- Eryngium_aquaticum.gif – Virginia or Water Eryngo, Rattlesnake Master
- Eryngium_leavenworthii.gif – Leavenworth’s Eryngo,
- Eryngium_yuccifolium.gif – Rattlesnake Master, Button Snakeroot
- Erysimum_capitatum.gif – Western Wall-flower
- Euonymus_americana.gif – Strawberry Bush, Burning Bush
- Euonymus_atropurpurea.gif – Wahoo, Burning Bush
- Euonymus_europaea.gif – Spindle Tree
- Euonymus_obovatus.gif – Running Strawberry Bush
- Euphorbia_corollata.gif – Flowering Spurge
- Euphorbia_ipecacuanhae.gif – Wild Ipecac
- Filipendula_rubra.gif – Queen of the Prairie
- Filipendula_ulmaria.gif – Queen of the Meadow
- Foeniculum_vulgare.gif – Fennel
- Fragaria_vesca.gif – Wood Strawberry
- Fragaria_virginiana.gif – Virginia Strawberry
- Fraxinus_americanus.gif – White Ash
- Fraxinus_nigra.gif – Black or Brown Ash
- Fraxinus_pennsylvanica.gif – Green Ash
- Fumaria_officinalis.gif – Fumitory
- Gaultheria_procumbens.gif – Wintergreen
- Gaura_coccinea.gif – Scarlet Gaura, Yerba de la Vírgen
- Gaura_parviflora.gif – Small-flowered Gaura
- Gaylussacia_baccata.gif – Black Huckleberry
- Gelsemium_sempervirens.gif – Gelsemium, Yellow Jessamine
- Genista_tinctoria.gif – Dyer’s Broom
- Geranium_maculatum.gif – Wild Geranium, Spotted Cranesbill
- Geranium_robertianum.gif – Herb Robert
- Geum_macrophyllum.gif – Large-leaved Avens
- Geum_rivale.gif – Water Avens
- Gillenia_stipulata.gif – Porteranthus stipulatus, American Ipecac, Indian Physic, Bowman’s Root
- Gillenia_trifoliata.gif – Porteranthus trifoliatus, Indian Physic, Bowman’s Root
- Glaucium_flavum.gif – Yellow Horned Poppy
- Glaux_maritima.gif – Sea Milkwort
- Gleditsia_triacanthos.gif – Honey or Black Locust
- Glycyrrhiza_lepidota.gif – American Licorice
- Gymnocladus_dioica.gif – Kentucky Coffeetree
- Hamamelis_virginiana.gif – Witch Hazel
- Helianthemum_canadense.gif – Rock-rose, Frostwort
- Helianthemum_corymbosum.gif – Pinebarren Frostweed
- Helleborus_viridis.gif – Christmas Rose, Green Hellebore
- Hepatica_nobilis_acuta.gif – Heart-leaved Liverwort
- Hepatica_nobilis_obtusa.gif – Round-leaved Liverwort
- Heracleum_lanatum.gif – Cow Parsnip
- Heuchera_americana.gif – American Alumroot
- Heuchera_parviflora.gif – Littleflowered Alumroot
- Heuchera_richardsonii.gif – Rough Alumroot
- Heuchera_villosa.gif – Hairy Alumroot
- Hibiscus_moscheutos.gif – Swamp Rose Mallow
- Hydrangea_arborescens.gif – Wild Hydrangea
- Hydrastis_canadensis.gif – Golden Seal
- Hydrocotyle_umbellata.gif – Many-flowered Marsh Pennywort
- Hypericum_ascyron.gif – Great St. John’s Wort
- Hypericum_densiflorum.gif – Bushy St. John’s Wort
- Hypericum_hypericoides.gif – St. Andrew’s Cross
- Hypericum_perforatum.gif – St. John’s Wort, Klamath Weed
- Hypericum_punctatum.gif – Spotted St. John’s Wort
- Ilex_opaca.gif – American or White Holly
- Ilex_verticillata.gif – Prinos verticillata, Black Alder, Feverbush
- Ilex_vomitoria.gif – Yaupon, Cassena
- Iliamna_rivularis-rivularis.gif – Streamside Hollyhock, Great Globemallow,
- Impatiens_capensis.gif – Spotted Touch-me-not or Jewelweed
- Impatiens_pallida.gif – Pale Touch-me-not or Jewelweed
- Jeffersonia_diphylla.gif – Twin-leaf
- Kallstroemia_parviflora.gif – Greater Caltrop, Sore-eye Poopy, Contrayerba (NM)
- Kalmia_angustifolia.gif – Sheep Laurel
- Kalmia_latifolia.gif – Mountain Laurel
- Kalmia_polifolia.gif – Swamp Laurel
- Kosteletzkya_virginica.gif – Virginia Salt Marshmallow
- Krameria_lanceolata.gif – Range Rhatany
- Lathyrus_venosus.gif – Veiny Pea
- Ledum_groenlandicum.gif – Labrador Tea
- Ledum_palustre-decumbens.gif – Narrow-leaved Labrador Tea
- Lepidium_sativum.gif – Garden Peppergrass
- Lepidium_virginicum.gif – Wild Peppergrass
- Lespedeza_capitata.gif – Round-headed Bush-clover
- Leucothoe_axillaris.gif – Coastal Doghobble
- Levisticum_officinale.gif – Ligusticum levisticum, Lovage
- Ligusticum_canadense.gif – Canadian Wild Lovage
- Ligusticum_scoticum.gif – Sea Lovage
- Ligustrum_vulgare.gif – Privet
- Lindera_benzoin.gif – Spice or Benjamin Bush
- Linum_catharticum.gif – Cathartic Flax
- Linum_lewisii.gif – Western Flax
- Linum_usitatissimum.gif – Common Flax
- Liquidambar_styraciflua.gif – Sweet Gum
- Liriodendron_tulipifera.gif – Tulip tree
- Lychnis_alba.gif – White Campion
- Lysimachia_quadriflora.gif – Crosswort Loosestrife
- Lythrum_salicaria.gif – Purple Loosestrife
- Magnolia_acuminata.gif – Mountain Magnolia, Cucumber Tree
- Magnolia_macrophylla.gif – Great-leaved Magnolia
- Magnolia_tripetala.gif – Sweetbay Magnolia
- Magnolia_virginiana.gif – Swamp Laurel, White Magnolia
- Mahonia_aquifolium.gif – Oregon Grape, or more precisely, M. aquifolium, var repens, or Creeping Barberry
- Malus_coronaria.gif – Southern Crab Apple
- Malus_sylvestris.gif – Apple
- Malva_crispa.gif – Curly Mallow
- Malva_moschata.gif – Musk Mallow
- Malva_neglecta.gif – Common Mallow, Cheeseplant
- Malva_sylvestris.gif – High Mallow
- Medicago_sativa.gif – Alfalfa, Lucerne
- Melilotus_albus.gif – White Sweet-clover
- Melilotus_officinalis.gif – Yellow Sweet-clover
- Menispermum_canadense.gif – Canada Moonseed
- Mentzelia_albicaulis.gif – White-stemmed Blazing Star
- Mercurialis_annua.gif – Herb Mercury
- Mitella_diphylla.gif – Bishop’s Cap, Mitrewort
- Moneses_uniflora.gif – Single-flowered Wintergreen
- Monotropa_hypopithys.gif – Pinesap, Beechdrops
- Monotropa_uniflora.gif – Indian Pipe
- Nelumbo_lutea.gif – American Lotus
- Nelumbo_nucifera.gif – Sacred Lotus
- Nemopanthus_mucronatus.gif – Vaccinium mucronatum, Wild Holly
- Nuphar_lutea_advena.gif – Yellow Pond Lily
- Nymphaea_odorata.gif – White Pond Lily
- Nymphaea_tetragona.gif – Small Water Lily
- Nyssa_sylvatica.gif – Black Gum Tupelo
- Oenothera_biennis.gif – Common Evening Primrose
- Oenothera_cespitosa.gif – Tufted Evening Primrose
- Oenothera_parviflora.gif – Small-flowered Evening Primrose
- Oplopanax_horridus.gif – Echinopanax horridus, Devil’s Club
- Opuntia_fragilis.gif – Brittle Prickly Pear
- Opuntia_humifusa-humifusa.gif – Eastern Prickly Pear, Indian Fig
- Opuntia_humifusa.gif – Wstern Prickly Pear
- Opuntia_polyacantha.gif – Plains Prickly Pear
- Osmorhiza_claytonii.gif – Clayton’s Sweet Cicely
- Osmorhiza_longistylis.gif – Sweet Cicely
- Oxalis_acetosella.gif – White woodsorrel
- Oxalis_violacea.gif – Violet Woodsorrel
- Oxydendrum_arboreum.gif – Sourwood
- Panax_quinquefolium.gif – American Ginseng
- Panax_trifolium.gif – Dwarf Ginseg
- Papaver_rhoeas.gif – Red Poppy
- Papaver_somniferum.gif – Opium Poppy
- Parthenocissus_quinquefolia.gif – Virginia Creeper
- Passiflora_incarnata.gif – Passion Flower
- Passiflora_lutea.gif – Yellow Passion Flower
- Pastinaca_sativa.gif – Parsnip
- Paxistima_canbyi.gif – Mountain Lover
- Pentaphylloides_floribunda.gif – Potentilla fruticosa, Bush Potentilla
- Penthorum_sedoides.gif – Virginia Stonecrop
- Persea_borbonia.gif – Sweet Bay
- Petroselinum_crispum.gif – Garden Parsley
- Peucedanum_ostruthium.gif – Imperatoria ostruthium, Masterwort
- Phyllanthus_caroliniensis.gif – Carolina Leaf Flower
- Physaria_brassicoides.gif – Double Twinpod
- Physocarpus_opulifolius.gif – Ninebarks
- Phytolacca_americana.gif – American Poke
- Pimpinella_saxifraga.gif – Burnet Saxifrage
- Platanus_occidentalis.gif – Sycamore
- Polanisia_dodecandra.gif – Clammy Weed
- Polygala_alba.gif – White Snakeroot or White Milkwort
- Polygala_senega.gif – Senega Snakeroot
- Portulaca_oleracea.gif – Purslane
- Potentilla_arguta-arguta.gif – Tall Cinquefoil
- Potentilla_canadensis.gif – Dwarf Cinquefoil
- Potentilla_hippiana.gif – Woolly Cinquefoil
- Potentilla_simplex.gif – Common Cinquefoil
- Prosopis_glandulosa.gif – Mesquite
- Prunus_americana.gif – American Plum
- Prunus_angustifolia.gif – Chickasaw Plum
- Prunus_cerasus.gif – Sour Cherry
- Prunus_pennsylvanica.gif – Pin Cherry
- Prunus_persica.gif – Peach
- Prunus_virginiana-melan.gif – Black Chokecherry
- Prunus_virginiana-virgin.gif – Chokecherry
- Psoralea_esculenta.gif – Breadroot, Contrayerba
- Psoralea_lanceolata.gif – Lemon Scurfpea
- Psoralea_tenuiflora.gif – Slimflower Scurfpea
- Ptelea_trifoliata.gif – Wafer Ash, Hop Tree
- Pulsatilla_patens.gif – Anemone patens, Pulsatilla, Pasque Flower
- Pyrola_americana.gif – American Shinleaf
- Pyrola_asarifolia-asarifoli.gif – Bog Wintergreen
- Pyrola_asarifolia.gif – Liverleaf Wintegreen
- Pyrola_chlorantha.gif – Green Pyrola
- Pyrola_elliptica.gif – Shinleaf
- Pyrola_minor.gif – Lesser Shinleaf or Wintergreen
- Pyrola_secunda.gif – One-sided Pyrola
- Ranunculus_abortivus.gif – Littleleaf Buttercup,
- Ranunculus_acris.gif – Tall Buttercup
- Ranunculus_bulbosus.gif – St. Anthony’s Turnip,
- Reseda_luteola.gif – Yellow Mignonette,
- Rhamnus_alnifolia.gif – Alder-leaved Buckthorn
- Rhamnus_caroliniana.gif – Carolina Buckthorn
- Rhamnus_cathartica.gif – Buckthorn
- Rhamnus_frangula.gif – Frangula alnus, Frangula Buckthorn
- Rhexia_virginica.gif – Meadow Beauty
- Rhododendron_maximum.gif – Great Laurel
- Rhus_aromatica.gif – Fragrant or Sweet Sumach
- Rhus_copallinum.gif – Flameleaf Sumach
- Rhus_glabra.gif – Smooth Sumach
- Rhus_hirta.gif – Staghorn Sumach
- Rhus_trilobata.gif – Skunk Bush, Lemita
- Ribes_americana.gif – Black Currant
- Ribes_glandulosum.gif – Skunk Currant
- Ribes_inebrians.gif – Ribes cereum var. pedicellare, Whiskey Corrant
- Ribes_lacustre.gif – Swamp Gooseberry
- Ribes_rotundifolium.gif – Eastern Gooseberry
- Ricinus_communis.gif – Castor Bean
- Robinia_hispida.gif – Bristly Locust
- Robinia_pseudo-acacia.gif – Black Locust
- Rorippa nasturtium-aquat.gif – Watercress
- Rosa_canina.gif – Dog Rose
- Rosa_virginiana.gif – Pasture Rose
- Rosa_woodsii.gif – Wood’s Rose
- Rubus_allegheniensis.gif – Mountain Blackberry
- Rubus_idaeus-strigosus.gif – Wild Red Raspberry
- Rubus_occidentalis.gif – Black Raspberry
- Rubus_odoratus.gif – Purple-flowered Raspberry
- Rubus_parviflorus.gif – Salmonberry
- Salsola_kali.gif – Russian Thistle, Tumbleweed
- Sanguinaria_canadensis.gif – Bloodroot
- Sanicula_canadensis.gif – Canadian Black Sanicle
- Sanicula_marilandica.gif – Black Sanicle
- Sapindus_saponaria.gif – Soapberry
- Saponaria_officinalis.gif – Soapwort, Bouncing Bet
- Sarcobatus_vermiculatus.gif – Greasewood
- Sarracenia_purpurea.gif – Pitcher Plant
- Sassafras_albidum.gif – Sassafrass
- Saxifraga_pensylvanica.gif – Pennsylvania Saxifrage
- Sedum_acre.gif – Stonecrop
- Sedum_rosea.gif – Rhodiola rosea, Roseroot
- Sedum_telephioides.gif – American Orpine
- Sedum_ternatum.gif – Wild Stonecrop
- Sempervivum_tectorum.gif – Houseleek
- Shepherdia_argentea.gif – Buffalo Berry
- Shepherdia_canadensis.gif – Canadian Buffalo Berry
- Sida_hederacea.gif – Malvella leprosa, Alkali Mallow
- Sideroxylon_lanuginosum.gif – Bumelia lanuginosa, Gum Bully
- Sideroxylon_lycioides.gif – Bumelia lycioides, Buckthorn Bully
- Silene_acaulis.gif – Moss Campion
- Silene_latifolia.gif – Bladder Campion
- Silene_stellata.gif – Starry Campion
- Sinapis_arvensis.gif – Charlock, Wild Mustard
- Sium_suave.gif – Hemlock Water Parsnip
- Sophora_nuttalliana.gif – Silky Mescal Bean
- Sorbus_americana.gif – American Mountain Ash
- Sphaeralcea_angustifolia.gif – Narrow-leaved Globemallow, Yerba del Negro
- Sphaeralcea_coccinea.gif – Scarlet Globemallow, Yerba de la Negrita
- Spigelia_marylandica.gif – Pink Root, Carolina Pink
- Spiraea_alba.gif – White Meadowsweet, White Hardhack
- Spiraea_tomentosa.gif – Hardhack, Steeplebush
- Stanleya_pinnata.gif – Prince’s Plume
- Staphylea_trifolia.gif – American Bladdernut
- Stellaria_longipes.gif – Longstalk Chickweed or Starwort
- Stellaria_media.gif – Common Chickweed
- Stillingia_sylvatica.gif – Stillingia, Queen’s Root, Yaw Root
- Stylophorum_diphyllum.gif – Celandine Poppy
- Styrax_americana.gif – American Storax
- Symplocos_tinctoria.gif – Sweetleaf
- Syringa_vulgaris.gif – Lilac
- Tephrosia_virginiana.gif – Goat’s Rue, Devil’s Shoestring
- Thalictrum_dalictrum_dasycarpum.gif – Tall Meadow Rue
- Thalictrum_dioicum.gif – Spring Meadow Rue
- Thalictrum_thalictroides.gif – Rue Anemone
- Thermopsis_rhombifolia.gif – Prairie Thermopsis
- Thlaspi_arvense.gif – Field Pennycrest
- Tilia_americana-heterophyll.gif – White Basswood
- Tilia_americana.gif – American Linden, Basswood
- Toxicodendron_pubescens.gif – Poison Oak
- Toxicodendron_radicans.gif – Poison Ivy
- Toxicodendron_vernix.gif – Poison Sumach
- Tragia_nepaetifolia.gif – Tragia ramosa, Catnip Noseburn
- Trautvetteria_caroliniensis.gif – False Bugbane
- Tribulus_terrestris.gif – Puncture Vine
- Trifolium_pratense.gif – Red Clover
- Trifolium_repens.gif – White Clover
- Trollius_laxus.gif – Globeflower
- Vaccinium_arboreum.gif – Farkleberry
- Vaccinium_cespitosum.gif – Dwarf Bilberry
- Vaccinium_corymbosum.gif – Highbush Blueberry
- Vaccinium_macrocarpon.gif – American Cranberry
- Vaccinium_ovalifolium.gif – Tall Bilberry
- Vaccinium_oxycoccos.gif – Small Cranberry
- Vaccinium_uliginosum.gif – Bog Whortleberry or Bilberry
- Vaccinium_vitis-idaea.gif – Lingonberry
- Viola_canadensis.gif – Canada Violet
- Viola_odorata.gif – Sweet Violet
- Viola_pedata.gif – Birdsfoot Violet
- Viola_pubescens.gif – Hairy Yellow Violet
- Viola_rafinesquei.gif – Field Pansy
- Viola_sagittata.gif – Arrow-leaved Violet
- Viola_tricolor.gif – Pansy, Heartsease
- Vitis_aestivalis.gif – Summer Grape
- Vitis_labrusca.gif – Fox Grape
- Vitis_vulpina.gif – Frost Grape
- Xanthorhiza_simplicissima.gif – Yellow Root
- Zanthoxylum_americanum.gif – Prickly Ash
- Zanthoxylum_clava-herculis.gif – Southern Prickly Ash, Hercules’ Club
- Zizia_aurea.gif – Golden Alexanders
All images, 4 to a page at 200 dpi for printing – Acrobat .pdf file, 113 pages, 11.4 MB