May Wild Flower Records
Hamilton, Ontario, Canada
Updated to May 31, 2005

Records of 233 species in bloom seen in May during the last 7 years in the Hamilton Area.
* = Plant is not native to our area.

English Names Latin Names French Names
ALYSSUM, SMALL * Alyssum alyssoides Alysson calicinal
ANEMONE, RUE Anemonella thalictroides Anémone fauxpigamon
ANEMONE, WOOD Anemone quinquefolia Anémone à cinq folioles
ANISEROOT Osmorhiza longistylis Osmorhize à long style
ASPARAGUS * Asparagus officinalis Asperge
ASPEN, LARGE-TOOTHED (TREE) Populus grandidentata Peuplier à grandes dents
ASPEN, TREMBLING (TREE) Populus tremuloides Peuplier faux-tremble
AVENS, YELLOW Geum aleppicum Benoîte d'alep
BANEBERRY, RED Actaea rubra Actée rouge
BANEBERRY, WHITE Actaea pachypoda Actée à gros pédicelles
BARBERRY, COMMON * (SHRUB) Berberis vulgaris Épine-vinette commune
BARBERRY, JAPANESE * (SHRUB) Berberis thunbergii Épine-vinette du japon
BEARDTONGUE, FOXGLOVE Penstemon digitalis Penstémon digitale
BEDSTRAW, ROUGH Galium asprellum Gaillet piquant
BEECH, AMERICAN (TREE) Fagus grandifolia Hêtre à grandes feuilles
BEECH, BLUE (TREE) Carpinus caroliniana Charme de caroline
BELLWORT, LARGE-FLOWERED Uvularia grandiflora Uvulaire grandiflore
BELLWORT, PERFOLIATE Uvularia perfoliata Uvulaire perfoliée
BITTERCRESS, HAIRY * Cardamine hirsuta Cardamine hirsute
BLADDERNUT, AMERICAN (SHRUB) Staphylea trifolia Staphylier à trois folioles
BLOODROOT Sanguinaria canadensis Sanguinaire du Canada
BLUE FLAG, SLENDER * Iris prismatica Iris prismatique
BLUEBERRY, EARLY LOW Vaccinium angustifolium Airelle à feuilles étroites
BLUE-EYED GRASS, COMMON Sisyrinchium montanum Bermudienne montagnarde
BUCKTHORN, COMMON * (TREE) Rhamnus cathartica Nerprun cathartique
BUGLE * Ajuga reptans Bugle rampante
BUTTERBUR * Petasites japonicus Pétasite du japon
BUTTERCUP, CREEPING * Ranunculus repens Renoncule rampante
BUTTERCUP, EARLY Ranunculus fascicularis Renoncule fasciculée
BUTTERCUP, HISPID Ranunculus hispidus Renoncule hispide
BUTTERCUP, KIDNEYLEAF Ranunculus abortivus Rallonge coudée
BUTTERCUP, TALL * Ranunculus acris Renoncule âcre
CALLA, WILD Calla palustris Calla des marais
CAMPION, BLADDER * Silene vulgaris Silène enflé
CAMPION, WHITE (EVENING LYCHNIS) * Silene latifolia Compagnon blanc
CANCERROOT, ONE-FLOWERED Orobanche uniflora Orobanche uniflore
CELANDINE * Chelidonium majus Grande chélidoine
CELANDINE, LESSER * Ranunculus ficaria Renoncule ficaire
CHARLOCK * Sinapis arvensis Moutarde d`été
CHERRY, CHOKE (SHRUB) Prunus virginiana Cerisier à grappes
CHERVIL, BUR Anthriscus caucalis Anthrisque commun
CHESTNUT, HORSE (Tree) Aesculus hippocastanum Marronnier d'Inde
CHICKWEED, COMMON * Stellaria media Stellaire moyenne
CHICKWEED, JAGGED * Holosteum umbellatum Holostée à ombrelle
CHICKWEED, MOUSE-EAR * Cerastium fontanum Céraiste vulgaire
CICELY, SWEET Osmorhiza claytoni Osmorhize de clayton
CINQUEFOIL, COMMON Potentilla simplex Potentille simple
CINQUEFOIL, ROUGH Potentilla norvegica ssp. Monspeliensis Potentille de Norvège
CLEARWEED Pilea pumila Piléa nain ou petite ortie
CLEAVERS (BEDSTRAW) Galium aparine Gaillet gratteron
CLOVER, ALSIKE * Trifolium hybridum Trèfle alsike
CLOVER, RED * Trifolium pratense Trèfle rouge
CLOVER, WHITE * Trifolium repens Trèfle blanc
COHOSH, BLUE Caulophyllum thalictroides Caulophylie
COLTSFOOT * Tussilago farfara Tussilage pas d'âne
COLUMBINE, GARDEN * Aquilegia vulgaris Ancolie
COLUMBINE, WILD Aquilegia canadensis Ancolie du Canada
COMFREY, COMMON * Symphytum officinale ssp.officinale Consoude officinale
CRANBERRY, HIGHBUSH (SHRUB) Viburnum trilobum Viorne trilobée
CRESS, HAIRY ROCK Arabis hirsuta ssp pycnocarpa Arabette hirsute
CRESS, MOUSE-EAR * Arabidopsis thaliana Fausse arabette des dames
CRESS, PURPLE (PINK SPRING CRESS) Cardamine douglassii Cardamine de douglas
CRESS, SMOOTH ROCK Arabis laevigata Arbarette lisse
CRESS, SPRING Cardamine bulbosa Cardamine bulbeuse
CROWFOOT, CURSED Ranunculus sceleratus Renoncule scélérate
CROWFOOT, HOOKED Ranunculus recurvatus Renoncule recourbée
Currant, Buffalo * (Shrub) Ribes odoratum ( French not found )
CURRANT, WILD BLACK (Shrub) Ribes americanum Gadellier noir
CURRENT, GARDEN (Shrub) Ribes rubrum Groseillier rouge
DAISY, OXEYE * Chrysanthemum leucanthemum Marguerite blanche
DANDELION, COMMON * Taraxacum officinale Pissenlit officinal
DANDELION, MARSH * Taraxacum palustre ( French not found )
DANDELION, RED-SEEDED * Taraxacum erythrospermum Pissenlit à graines rouges
DEAD-NETTLE, PURPLE * Lamium purpureum Lamier pourpre
DEAD-NETTLE, SPOTTED * Lamium maculatum Lamier maculé
DOCK, CURLED * Rumex crispus Patience crépue
DOGWOOD, ALTERNATE-LEAVED (TREE) Cornus alternifolia Cornouiller à feuilles alternes
DOGWOOD, FLOWERING (TREE) Cornus florida Cornouiller fleuri
DOGWOOD, GRAY (SHRUB) Cornus foemina ssp racemosa Cornouiller à grappes
DOGWOOD, RED-OSIER (SHRUB) Cornus stolonifera Cornouiller stolonifère
DUTCHMAN'S BREECHES Dicentra cucullaria Dicentre à capuchon
ELDER, RED-BERRIED Sambucus rasemosa ssp  pubens Sureau rouge du pacifique
FALSE MERMAID Floerkea proserpinacoides ( French not found )
FLEABANE, COMMON Erigeron philadelphicus Érigéron de philadelphie
FLEABANE, DAISY Erigeron annuus Érigéron annuel
FOAMFLOWER Tiarella cordifolia Tiarelle cordifoliée
FORGET-ME-NOT, SMALLER Myosotis laxa Myositis laxiflore
FORGET-ME-NOT, TRUE * Myosotis scorpioides Myositis des marais
GERANIUM, WILD Geranium maculatum Géranium maculé
GOATSBEARD, MEADOW * Tragopogon pratensis  ssp pratensis Salsifis des prés
GOATSBEARD, YELLOW * Tragopogon dubius Salsifis jaune
GOLDTHREAD Coptis trifolia ssp. groenlandica Coptide, savoyante
GOOSEBERRY, PRICKLY Ribes cynosbati Groseiller des chiens
GRAPE, RIVERBANK (VINE) Vitis riparia Vigne "vitis riparia"
GROUND IVY * Glechoma hederacea Lierre terrestre
GROUNDSEL, COMMON * Senecio vulgaris Séneçon vulgaire
HAWKWEED, COMMON * Hieracium lachenalii Épervière vulgaire
HAWKWEED, FIELD * Hieracium caespitosum ssp caespitosum Épervière des prairies
HAWKWEED, GLAUCOUS KING DEVIL * Hieracium florentinum Épervière fausse piloselle
HENBIT * Lamium amplexicaule Lamier amplexicaule
HEPATICA, ROUND-LOBED Anemone americana Hépatite d`Amérique
HEPATICA, SHARP-LOBED Anemone acutiloba Hépatique à lobes aigus
HERB ROBERT * Geranium robertianum Géranium de Robert
HONESTY * Lunaria annua Monnaie du pape
HONEYSUCKLE, AMUR * (SHRUB) Lonicera maackii Chèvrefeuille de maack
HONEYSUCKLE, GLAUCOUS (SHRUB) Lonicera dioica Chèvrefeuille dioïque
HONEYSUCKLE, HAIRY Lonicera hirsuta Chèvrefeuille hirsute
HONEYSUCKLE, MORROW'S * (SHRUB) Lonicera morrowi Chèvrefeuille
HONEYSUCKLE, TARTARIAN * (SHRUB) Lonicera tatarica Chèvrefeuille de tartarie
HOP-HORNBEAM (TREE) Ostrya virginiana Ostryer de virginie
HORSE GENTIAN, ORANGE-FRUITED Triosteum aurantiacum ( French not found )
HOUND'S TONGUE * Cynoglossum officinale Cynoglosse officinale
HYACINTH, GRAPE * Muscari botryoides Muscari botryde
JACK-IN-THE-PULPIT Arisaema triphyllum Ariséma triphylle
LADY'S SLIPPER , SMALLER YELLOW Cyprippedium calceolus parviflorum Sabot de la vierge (petit)
LADY'S SLIPPER, YELLOW Cypripedium calceolus pubescens Sabot de la vierge (grand)
MALLOW, COMMON(CHEESES) * Malva neglecta Fromagère
MANDARIN, YELLOW Disporum lanuginosum ( French not found )
MAPLE, MANITOBA (Tree) Acer negundo L. Érable à feuilles composées
MAPLE, MOUNTAIN (TREE) Acer spicatum Érable à épis
MAPLE, RED (Tree) Acer rubrum Érable rouge
MAPLE, SUGAR (TREE) Acer saccharum Érable à sucre
MARIGOLD, MARSH Caltha palustris Populage des marais
MAYAPPLE Podophyllum peltatum Podophylle pelté
MAYFLOWER, CANADA Maianthemum canadense Maïanthème du Canada
MAYWEED * Anthemis cotula Camomille puante
MEADOW-RUE, EARLY Thalictrum dioicum Pigamon dioïque
MEDICK, BLACK * Medicago lupulina Lupuline
MITERWORT Mitella diphylla Mitrelle à deuxfeuilles
MOUSE EAR * Hieracium pilosella Épervière piloselle
MUSTARD, FIELD * Brassica rapa Moutarde des champs
MUSTARD, GARLIC * Alliaria petiolata Alliaire officinale
MUSTARD, WORMSEED * Erysimum cheiranthoides Vélar fausse giroflée
NIGHTSHADE, BITTERSWEET * Solanum dulcamara Morelle douce-amère
OAK, PIN (Tree) Quercus palustris Chêne des marais
OLIVE, AUTUMN * Elaeagnus umbellata ( French not found )
PANSY, FIELD Viola arvensis Violette des champs
PARSNIP, COW Heracleum lanatum Berce laineuse
PAWPAW (TREE) Asimina triloba Asiminier trilobé
PENNYCRESS, FIELD * Thlaspi arvense Tabouret des champs
PEPPERGRASS, FIELD * Lepidium campestre Lépidie des champs
PERIWINKLE * Vinca minor Pervenche mineur
PHLOX, WILD BLUE Phlox divaricata Phloxdivariqué
PIMPERNEL, YELLOW Taenidia integerrima Ténidia à feuilles entières
PINEAPPLE WEED * Matricaria matricarioides Matricaire odorante
PLANTAIN, ENGLISH * Plantago lanceolata Plantain lancéolé
PLUM, AMERICAN (TREE) Prunus americana Prunier d`amérique
PLUM, CANADA (TREE) Prunus nigra Prunier noir
PUSSYTOES, FIELD Antennaria neglecta Antennaire du Canada
PUSSYTOES, PARLIN'S Antennaria parlinii ssp. fallaz Antennaire de parlin
PUSSYTOES, SMALLER RARE IN H/W Antennaria howellii ssp neodioica Antennaire néodioïque
RAGWORT, GOLDEN Senecio aureus Séneçon doré
RASPBERRY, BLACK (SHRUB) Rubus occidentalis Framboisier noir
RASPBERRY, WILD RED (SHRUB) Rubus idaeus Framboisier sauvage
REDBUD (TREE) Cercis canadensis Gainier rouge
ROCKET, DAME'S * Hesperis matronalis Julienne des dames
ROCKET, YELLOW * Barbarea vulgaris Barbarée vulgaire
ROSE, SMOOTH (SHRUB) Rosa blanda Rosier inerme
RUSH, WOOD Luzula multiflora Luzule multiflore
SANDWORT, GROVE Moehringia lateriflora ( French not found )
SANDWORT, THYME-LEAVED * Arenaria serpyllifolia Sabline à feuilles de serpolet
SARSAPARILLA, WILD Aralia nudicaulis Aralie à tige nue
SASSAFRAS (TREE) Sassafras albidum Sassafras officinal
SAXIFRAGE, EARLY Saxifraga virginiensis Saxifrage de virginie
SAXIFRAGE, GOLDEN Chrysosplenium americanum Dorine d'Amérique
SCORPION-GRASS, BLUE * Myosotis stricta Myosotis à tiges dressées
SEDGE, PENNSYLVANIA Carex pensylvanica Carex de Pennsylvanie
SHADBUSH UNKNOWN SPECIES (TREE)   Amélanchier
SHADBUSH, COMMON (TREE) Amelanchier arborea Amélanchier arborescent
SHADBUSH, SMOOTH (TREE) Amelanchier laevis Amélanchier glabre
SHEPHERD'S PURSE * Capsella bursa-pastoris Bourse-à-pasteur
SILVERWEED Potentilla anserina Potentille ansérine
SNAKEROOT, BLACK Sanicula marilandica Sanicle du maryland
SNAKEROOT, SENECA Polygala senega Polygala sénéca
SOLOMON'S SEAL, FALSE Maianthemum racemosa Fauxsceau de salomon
SOLOMON'S SEAL, HAIRY Polygonatum pubescens Sceau-de-salomon pubescent
SOLOMON'S SEAL, STAR-FLOWERED FALSE Maianthemum stellata Smilacine étoilée
SORREL, SHEEP * Rumex acetosella Petite oseille
SPEEDWELL, BIRD'S EYE Veronica chamaedrys Véronique de perse
SPEEDWELL, COMMON * Veronica officinalis Véronique officinale
SPEEDWELL, CORN * Veronica arvensis Véronique des champs
SPEEDWELL, PERSIAN * Veronica persica Véronique de perse
SPEEDWELL, PURSLANE Veronica peregrina Véronique voyageuse
SPEEDWELL, SLENDER * Veronica filiformis Véronique filiforme
SPEEDWELL, THYME-LEAVED * Veronica serpyllifolia Véronique à feuilles de serpolet
SPEEDWELL, WAYSIDE * Veronica polita Véronique luisante
SPICEBUSH (SHRUB) Lindera benzoin Laurier benzoin
SPINDLE TREE * Euonymus europaea Fusain d'Europe
SPRING BEAUTY, CAROLINA Claytonia caroliniana Claytonie de caroline
SPRING BEAUTY, NARROW-LEAVED Claytonia virginica Claytonie
SPURGE, CYPRESS * Euphorbia cyparissias Euphorbe cyprès
SPURGE, LEAFY * Euphorbia esula Euphorbe âcre
SPURGE, PETTY * Euphorbia peplus Euphorbe des jardins
SQUIRREL-CORN Dicentra canadensis Dicentre du Canada
STARFLOWER Trientalis borealis Trientale boréale
STITCHWORT, LESSER * Stellaria graminea Stellaire graminée
STORKSBILL * Erodium cicutarium Érodium cicutaire
STRAWBERRY, BARREN Waldsteinia fragarioides Waldsteinia faux-fraisier
STRAWBERRY, FIELD Fragaria virginiana ssp.glauca Fraisier de Virginie
STRAWBERRY, WOODLAND Fragaria vesca Fraisier des bois
TAMARACK (TREE) Larix laricina Mélèze laricin
THIMBLEWEED Anemone virginiana Anémone de Virginie
TOADFLAX, STAR Comandra umbellata Comandre à ombrelles
TOOTHWORT(CRINKLEROOT) Cardamine diphylla Dentaire à 2 feuilles
TOOTHWORT, CUT-LEAVED Cardamine concatenata Dentaire
TREFOIL, BIRDSFOOT * Lotus corniculatus Lotier corniculé
TRILLIUM, RED Trillium erectum Trille rouge
TRILLIUM, WHITE Trillium grandiflorum Trille blanc
TROUT-LILY Erythronium americanum Érythrone d'Amérique
TROUT-LILY, WHITE Erythronium albidum ( French not found )
TWINLEAF Jeffersonia diphylla ( French not found )
TWISTED STALK, ROSE Streptopus roseus Streptope rose
VETCH, COW * Vicia cracca Vesce cracca
VETCH, SLENDER * Vicia tetrasperma Vesce à quatre graines
VIBURNUM, SWEET Viburnum lentago Viorne lentago
VIOLET, CANADA Viola canadensis Violette du Canada
VIOLET, COMMON Viola sororia Violette parente
VIOLET, DOG Viola conspersa Violette décombante
VIOLET, DOWNY YELLOW Viola pubescens Violette pubescente
VIOLET, LECONTE'S Viola affinis Violette affine
VIOLET, LONG-SPURRED Viola rostrata Violette rostrée
VIOLET, MARSH BLUE Viola cucullata Violette cucullée
VIOLET, N.BLUE Viola septentrionalis Violette septentrionale
VIOLET, N.WHITE * Viola odorata Violette odorante
VIOLET, SELKIRK'S Viola Selkirkii Violette de selkirk
VIOLET, SWEET WHITE Viola blanda Violette odorante?
WATERCRESS * Nasturtium officinale Cresson de fontaine
WATER-LEAF, VIRGINIA Hydrophyllum virginianum Hydrophylle de Virginie
WHITLOW GRASS * Erophila verna ( French not found )
WILD GINGER Asarum canadense Asaret du Canada
WILLOW, WEEPING (TREE) Salix x sepulcralis Saule pleureur
WOOD BETONY Pedicularis canadensis La pédiculaire du Canada
WOOD SORREL, YELLOW Oxalis stricta Oxalide dressée

Dean A. Gugler
Amateur Naturalist

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