BLOOMING WILDFLOWERS

Seen in Cook County Minnesota

Our county is large with many climates and micro-climates. This list shows approximately when they can be seen.

Agrimony, Common-Agrimonia - 7/17 - 8/28

Alumroot - Heuchera americana - 7/5

Alyssum, Hoary - Berteroa incana - 8/7 - 8/15

Anemone, Wood - Anemone quinquefolia - 5/9 - 6/13

Anemone, Canada - Anemone canadensis - 6/28 - 7/17

Arbutus, Trailing - Epigaea repens - 5/2 - 6/5

Arethusa or Dragon’s Mouth - Arethusa bulbosa - 6/26 - 7/17

Arrowhead, Common - Sagittaria latifolia - 7/31 - 8/7

Aster - ssp - 7/19 - 8/28

Avens, Yellow - Geum aleppicum - 6/7 - 8/1

Avens, White - Geum canadense - 6/20

Baneberry, Red - Actaea rubra - 5/23 - 6/13

Bearberry - Arctostaphylos uva-ursi - 5/24 - 6/7

Bedstraw, Northern - Galium boreale - 7/3 - 8/8

Bedstraw, Rough - Galium asprellum - 7/31 - 8/21

Bellflower, Creeping - Campanula rapunculoides - 7/11 - 8/28

Bellwort, Large-flowered - Uvularia grandiflora - 5/16 - 6/19

Bindweed, Fringed - Polygonum cilinode - 8/7 - 8/21

Bindweed, Upright - Convolvulus spithamaeus - 6/13 - 7/10

Bistort, Alpine - Polygonum viviparum - 7/3

Black-eyed Susan - Rudbeckia serotina - 7/4 - 9/13

Bladderwort, Horned - Utricularia cornuta - 7/10

Bloodroot - Sanguinaria canadensis - 5/2 - 5/29

Bluebell (Tall Lungwort)_ - Mertensia paniculata - 6/5 - 7/10

Blue-eyed Grass - Sisyrinchium ssp. - 6/5 - 8/1

Buckbean, Bog - Menyanthes trifoliata - 6/7 - 6/13

Buckwheat,Climbing False - Polygonum scanclen - 6/20 - 8/29

Bugleweed - Lycopus virginicus - 8/21

Bugloss, Vipers - Echium vulgare - 7/2 - 8/1

Bunchberry - Cornus canadensis - 5/30 - 7/17

Bur-marigold - Bidens - 8/21 - 8/30

Bur-reed - Sparganium - 7/31 - 8/7

Burdock Common - Arctium norvegica - 8/30

Burdock - Arctium lappa - 8/30

Butter & Eggs - Linaria vulgaris - 6/27 - 9/13

Buttercup, Tall or Common - Ranunculus acris - 6/6 - 9/13

Buttercup, Swamp - Ranunculus septentrionalis - 6/6 - 6/27

Butterwort - Pinguicula vulgaris - 5/13 - 6/20

Calla, Wild or Water Arum - Calla palustris - 6/12 - 7/3

Campion or Lychnis, Evening - Lychnis alba - 6/14 - 8/29

Campion, Bladder - Silene cucubalus - 7/26

Caraway - Carum carvi - 6/6 - 7/17

Carpetweed - Mollugo verticillata - 8/14 - 8/28

Chamomile, Scentless - Matricaria maritima - 7/31 - 9/11

Chamomile, Wild - Matricaria chamomilla - 7/10 - 7/24

Chickweed, Field - Cerastium arvense - 6/26 - 7/11

Chickweed, Mouse-ear - Cerastium vulgatum - 8/15

Chicory - Cichorium intybus - 8/1 - 8/8

Cicely, Sweet - Odmothiza clatoni - 6/12 - 6/20

Cinquefoil, Dwarf - Potentilla canadensis - 7/3 - 7/19

Cinquefoil, Marsh - Potentilla palustris - 7/3 - 7/19

Cinquefoil, Rough - Potentilla norvegica - 7/3 - 8/30

Cinquefoil, Rough-fruited - Potentilla recta - 7/3 - 8/13

Cinquefoil, Shrubby - Potentilla fruiticosa - 6/20 - 8/15

Cinquefoil, Three-tooth - Potentilla tridentata - 6/20 - 8/1

Clematis, Rock, Purple - Clematis verticillari - 5/30 - 6/19

Clintonia ( Blue Bead Lily) - Clintonia borealis - 5/30 - 7/10

Clover, Hop - Trifolium agrarium - 7/4 - 8/28

Clover, Least Hop - Trifolium debium - 7/11

Clover, Purple, Red, White or Pink - 6/19 - 8/29

Clover, Rabbitsfoot - Trifolium agrarium - 7/4 - 9/1

Clover, Sweet, Purple, White or Yellow - 7/3 - 8/28

Coltsfoot, Early - Petasites palmatus - 5/9 - 5/29

Columbine - Aquilegia canadennsis - 6/6 - 7/17

Commandra, Northern - Geocauion liviclum - (berry) 8/22

Coralroot,Northern or Early - Corallorhiza maculata - 5/30 - 6/6

Coralroot, Spotted - Corallorhiza maculata - 6/20 - 7/3

Coralroot, Striped - Corallorhiza striata - 7/17

Coralroot, Yellow - Corallorhiza ovhrokuca - 7/4

Corydalis, Pale or Pink - Corydalis sempervirens - 6/6 - 6/19

Cotton-grass -Eriphorum alpinum & E gracile 5/24 - 6/19

Cow-parsnip - Heracleum maximum - 6/27 - 8/1

Cow-wheat - Milampyrum lineare - 7/17 - 8/23

Cranberry, Small - Vaccinium oxycoccos - 6/13 - 8/23

Cranesbill, Carolina - Geranium maculatum - 6/12

Cress, Early Winter (mustard) - Barbarea verna - 5/23 - 7/4

Cress, Lyre-leaved Rock - Arabis lyrata - 6/12

Cress, Smooth Rock - Arabis laevigata - 6/13

Cuckoo-flower - Cardimine bulbosa - 5/23 - 5/30

Daisy, Ox-eye - Chrysanthemum leucanthemum - 5/16 - 8/7

Dame’s Rocket - Hesperis matronalis - 6/14 

Dandelion, Common - Taraxacum officinale - 5/18 - 7/10 

Dock, Curled - Rumex crispus - 6/27 - 8/30

Dogbane,Spreading- Apocynum androsaemifolium- 6/27- 8/28

Dutchman’s-breeches - Dicentra cucullaria - 5/9 - 6/5

Everlasting, Pearly - Anaphalis margaritacea - 7/19 - 9/13

Eyebrite - Euphrasia americana - 7/10 - 9/1

Fireweed - Epilobium angustifolium - 7/4 - 8/28

Fleabane, Daisy - Erigeron annuus - 7/3 - 8/29

Forget-me-not, Smaller - Myosotis laxa - 6/27

Forget-me-not, True - Myosotis scorpioides - 5/30 - 7/11

Gaywings (Polygala, Fringed) - Polygala paucifolia - 6/5 - 7/3

Gentian, Closed or Bottle - Gentiana clausa - 8/15

Gentian, Spurred - Halenia deflexa - 7/19 - 8/22

Geranium, Wild - Geranium maculatum - 6/7 - 7/10

Ginger, Wild - Asarum canadense - 5/23 - 6/12

Goat’s-beard, yellow - Tragopogon pratensis - 6/7 - 6/27

Goldenrod - Solidago ssp - 7/17 - 9/13

Goldenrod - Bog - Solidago purshii - 8/15

Goldenrod, Canada - Solidago canadensis - 8/15 - 8/22

Goldthread - Coptis groenlandica - 6/5 - 6/19

Grass-of-Parnassus - Parnassia glauca - 7/26 - 8/1

Harebell - Campanula rotundifolia - 7/5 - 8/28

Hawkweed, Canada - Hieracium vulgatum - 8/7 - 8/28

Hawkweed, Yellow - Hieracium aurantiacum, may instead be:

King Devil - Hieracium pratense - 6/7 - 9/13

Hawkweed, Orange - Hieracium aurantiacum - 6/6 - 9/13

Heal-all - Prunella vulgaris - 7/4 - 9/13

Hemlock, Water - Cicuta maculata - 7/19 - 8/23

Herb-Robert - Geranium robertianum - 7/3 - 8/15

Honeysuckle, Bush - Diervilla lonicera - 7/12 - 7/26

Honeysuckle, Glaucous (vine) - Lonicera dioica - 6/13

Horseweed - Erigeron canadensis - 8/7 - 8/28

Indian Pipes - Monotropa uniflora - 8/14 - 8/23

Iris, Blue Flag - Iris versicolor - 6/27 - 7/11

Jack-in-the-Pulpit - Arisaema atrorubens - 5/23 - 6/27

Jewelweed, Spotted - Impatiens capensis - 7/24 - 9/1

Joe-Pye Weed - 7/24 - 8/28

Knapweed, Spotted - Centaurea maculosa - 8/1 - 8/30

Labrador Tea - Ledum groenlandicum - 6/7 - 6/20

Lady’s-Slipper, Pink - Cypripedium acaule - 5/30 - 6/12

Lady’s-Slipper, Yellow - Cypripedium calceolus - 6/21 - 7/4

Laurel, Pale (bog) - Kalmia polifolia - 5/24 - 6/12

Leatherleaf - Chamaedaphne calyculata - 5/24 - 5/30

Lettuce, White - Prenanthes alba - 8/7 - 9/1

Lily-of-the-Valley,Wild -Maianthemum canadense - 5/30 - 7/10

Lily, Small Yellow Pond - Nuphar microphyllum - 6/12 - 8/29

Lily, Trout - Erythroniym americanum - 5/9 - 6/5

Lily, Water, white - Nymphaea odorata - 7/31 - 8/29

Lily, Wood - Lilium andinum - 7/1 - 7/17

Linnaea - Twinflower - Linnaea borealis - 6/26 - 7/24

Lobelia, Brook or Calm’s - Lobelia kalmii - 8/1 - 8/21

Loosestrife, Purple - Lythrum salicaria - 8/7 - 8/28

Loosestrife, Yellow - Lysimachia terrestris -7/19 - 7/24

Lupine - Lupinus polyphyllus - 6/7 - 7/26

Lychnis, Evening - Lychnis alba - 6/13 - 8/28

Marsh-marigold - Cowslip - Caltha palustris - 5/16 - 6/19

Mayweed - Anthemis cotula - 8/2 - 9/13

Meadow-rue, Early - Thalictrum dioicum - 6/20 - 7/19

Meadow-rue, Tall - Thalictrum polygamum - 7/10 - 7/17

Meadowsweet - Spiraea latifolia - 8/1 - 8/15

Mertensia - see Bluebell

Mint, Wild - Mentha arvensis - 7/24 - 8/28

Miterwort, Naked - Mitella nuda - 7/24 - 8/28

Moccasin-flower, Pink - Cypripedium acaule - 5/30 - 6/26

Monkey-flower, Sharp-winged - Mimulus alatus - 7/3 - 7/31

Mullein, Common - Verbascum thapsus - 7/31 - 9/6

Mustard, Wormseed - Erysimum cheiranthoides - 8/1 - 8/28

Nettle, Hemp - Galeopsis tetrahit - 8/1

Nettle, White Dead - Lamium album - 8/1 - 8/28

Orchid, Long-bracted - Habenaria viridis - 7/11

Orchis, Northern Green - Habenaria hyperborea - 7/11 - 7/31

Orchis, Purple-fringed - Habenaria psycodes - 7/31

Orchis, Ragged Fringed - Habenaria lacera - 7/11 - 8/1

Orchis, Round-leaved - Habenaria orbiculata - 6/13

Habenaria = Plantanthera

Parsnip, Cow - Heracleum maximum - 6/20 - 7/26

Parsnip, Meadow - Thaspium trifoliatum - 7/5

Parsnip, Water - Sium suave - 7/31 - 8/7

Pea, Beach - Lathyrus japonicus - 6/26 - 8/28

Penstemon, Beardtongue - Penstemon digitalis - 6/27

Pigweed or Lamb’s Quarters - Chenopodium album - 7/24 - 8/28

Pineapple weed - Matricaria matricarioides - 7/24 - 8/30

Pink, Deptford - Dianthus deltoides - 7/24 - 8/29

Pipsissewa - Chimaphila umbellata - 7/24 - 8/16

Pipewort, Common - Eriocaulon septangulare - 7/31

Pitcher-plant - Sarracenia purpurea - 6/20 - 7/17

Plantain, Dwarf Rattlesnake - Goodyera repens - 8/7 - 8/16

Polygala, Fringed -Gay Wings - Polygala paucifolia - 6/5 - 7/3

Primrose, Bird’s-eye - Primula mistassinica - 5/31 - 6/12

Primrose, Evening - Oenothera biennis - 7/10 - 9/6

Pussytoes, Field - Antennaria neglecta - 5/16 - 7/3

Pyrola, Lesser - Pyrola minor - 6/13 - 7/31

Pyrola, One-sided - Pyrola secunda - 7/4 - 7/11

Pyrola, Pink - Pyrola asarifolia - 6/27 - 7/24

Pyrola, Round-leaved - Pyrola rotundifolia - 7/17 - 8/7

Ragwort, Round leaf - Senecio obovatus - 

Rattlesnake Root - Prinanthes trifoliata - 8/8 - 9/1

Rose, Wild - Rosa ssp. - 6/13 - 8/8

St. Johnswort, Common - Hypericum perforatum - 7/12 - 8/28

Sarsaparilla, Bristly - Aralia hispida - 7/5 - 7/17

Sarsaparilla, Wild - Aralia nudicaulis - 5/30 - 7/5 

Saxifrage, Early - Saxofraga vorgomoca - 5/16 - 5/29

Shinleaf - Pyrola elliptica - 8/7

Silverweed - Potentilla anserina - 5/30 - 7/10

Smartweed, Pale - Polygonum lapathifolium - 6/5 - 7/10

Snakeroot, Clustered - Sanicula gregaria - 6/20 - 7/11

Snowberry, Creeping - Gaultheria hispidula - 8/23

Solomon’s-Seal - Polygonatum - 6/6

Solomon’s-Seal, False - 6/6 - 6/27

Solomon’s-Seal, Thre-leaved - Smilacina trifolia - 6/12 - 6/27

Sorrel, Sheep - Rumex acelosella - 5/30 - 7/31

Sorrel, Wood, yellow - Oxalis montana - 6/20 - 8/28

Spring-beauty - Claytonia virginica & caroliniana - 5/9 - 6/6

Spurge - Euphorbia esula - 7/5

Spurrey, Sand - Spergularia rubra - 6/27 - 8/29

Starflower - Trientalis borealis - 6/5 - 7/3

Stickseed, European - Lappula echinata - 8/14

Stitchwort, Lesser - Stellaria graminea - 7/4 - 8/29

Strawberry, Barren - Waldsteinia fragarioides - 5/30 - 6/19

Strawberry, Common - Fragaria virginiana - 5/16 - 7/10

Sundew, Round - leaved - 7/10

Sundrops - Onothera fruiticosa - 6/20

Sweet Cicely - Osmorhiza claytoni - 6/12 - 6/19

Tansy - Tanacetum vulgare - 7/24 - 9/13

Tearthumb, Arrow-leaved - Polygonym sagittatum - 8/30

Thimbleweed - Anemone virginiana - 8/1

Thistle, Bull - Cirsium vulgare - 7/24 - 9/13

Thistle, Canada - Cirsium arvense - 7/24 - 8/30

Thistle, Common Sow - Sonchus asper - 7/26 - 8/22

Thistle, Field Sow - Sonchus arvenis - 7/24 - 8/28

Thistle, Nodding - Carduus nutans - 7/26 - 8/1

Thistle, Purple Field - (Cirsium discolor?) 7/19

Thistle, Sow - Sonchus asper - 8/8 - 9/1

Trefoil, Birdsfoot - Lotus corniculatus - 6/12 - 9/13

Trillium, Nodding - Trillium cernuum - 5/23 - 6/20

Turtlehead - Chelone glabra - 7/26 - 8/21

Twinflower - Linnea borealis - 6/13 - 7/24

Twisted-stalk, Rose - Streptopus roseus - 6/6 - 6/26

Valerian, Garden/ Heliotrope -Valeriana officinalis - 7/31 - 8/14

Vetch, Crown - Coronilla varia - 7/10 - 8/9

Vetch, Purple - Vinca americana - 6/12 - 8/15

Vetchling, Pale - Lathyrus ochroleucus - 6/13 - 6/27

Violets, Yellow, Blue, Purple & White - beginning - 5/9

Virgin’s Bower - Clematis virginiana - 8/1 - 8/22

Water-horehound, Cut-leaved - Lycopus americanus - 7/31

Willow-Herb, Northern - Epilobium glandulosum - 8/14

Wintergreen, One-flowered or One-flowered Pyrola 6/12-7/17

Wood-sorrel, yellow - Oxalis europaea - 6/28

Yarrow - Achillea millefolium - 6/28 - 9/13

Yarrow, Pink - Achillea - 7/4 - 7/11

 

BLOOMING TREES & SHRUBS

Seen in Cook County Minnesota

Alder, Speckled - Alnus incana - 6/5

Ash, Mountain, American - Sorbus americana - 6/13 - 7/10

Blackberry, Common - Rubus alleghenuensis - 6/12

Blueberry, Dwarf Sweet - Vaccinium angustifolium - 5/30- 6/19

Cherry, Pin - Prunus pennsylvanica - 5/23 - 6/26

Chokecherry - Prunus virginiana - 6/6 - 6/27

Cinquefoil, Rough - Potentilla norvegica - 7/4 - 7/11

Cranberry, Highbush - Viburnum trilobum - 6/20 - 6/27

Currant, Bristly - Ribes lacustre - 6/5 - 6/12

Currant, Skunk - Ribes glandulosum - 6/5 - 6/12

Dewberry - Rubus pubescens - 5/30 - 6/6

Dogwood, Red-osier - Cornus stolonifera - 6/12 - 7/17

Elder, Red-berried - Sambucus pubens - 5/23 - 6/20

Gooseberry - Ribes - 5/16 - 6/12

Hazelnut - Corylus - 5/2 - 5/22

Honeysuckle, Bush - Diervilla lonicera - 6/27 - 7/17

Honeysuckle, Fly - Lonicera canadensis - 5/30 - 6/5

Honeysuckle, Tartarian - Lonicera tatarica - 6/19 - 7/17

Honeysuckle Vine - Lonicera hirsuta - 6/26 - 7/31

Juneberry - Amelanchier ssp. - 5/16 - 6/20

Labrador Tea - Ledum groenlandicum - 6/6 - 7/3

Laurel, Bog or Pale - Kalmia polifolia - 6/6 - 7/3

Leatherleaf - Chamaedaphne calyculata - 6/12 - 6/19

Maple, Moose or Mountain - Acer spicatum - 6/13 - 7/11

Maple, Red - Acer rubrum - 5/9 - 5/29

Maple, Sugar - Acer saccharum - 5/29 - 6/5

Meadowsweet - Spiaraea latifolia - 7/24 - 8/14

Ninebark - Physocarpus opulifolius - 7/4 - 7/31

Raspberry - Rubus idaeus - 6/20 - 7/4

Rosemary, Bog - Andromeda glaucophylla - 6/6 - 6/26

Sumac, Dwarf - Rhus copallina - 7/11

Thimbleberry - Rubus parviflorus - 6/6 - 7/24

Viburnum, Maple-leaved - Viburnum acerifolium - 6/6

 

BERRIES WE SAW; both edible & non-edible

Baneberry, Red - Actaea rubra - 7/24 - 8/28

the berries of this plant are red, sometimes white

Baneberry, White - Actaea pachypoda - 7/25 - 8/25

Bearberry - Arctostaphylos uva-ursi - 8/7 - 8/28

Blueberry, Dwarf, Sweet - Vaccinium angustifolium - 7/31 - 8/7

Bunchberry - Cornus canadensis - 8/7 - 8/28

Cranberry, Small - Vaccinium oxycoccos - 8/7

Cherry, Pin - Prunus pennsylvanica - 8/14

Chokecherry - Prunus virginiana - 8/7 - 8/14

Currant, Upright - Ribes - 8/7 - 8/28

Dewberry - Rubus pubescens - 7/24 - 7/31

Dogwood, Red Osier - Cornus stolonifera - 7/31 - 8/28

Elderberry, Red-berried - Sambucus pubens - 7/24 - 8/21

Gooseberry - Ribes - 8/14 - 8/21

Hazelnut - Corylus, winged nuts - 7/24 - 7/31

Juneberry (Serviceberry) - Amelanchier ssp - 7/31 - 8/21

Pea. Beach - Lathyrus japonicus - 8/21 - 8/28

Raspberry, Rubus idaeus - 7/31 - 8/28

Rose Hips - 8/28

Sarsaparilla, Wild - Aralia nudicaulis - 7/24 - 8/28

Strawberry, Common - Fragaria virginiana - 7/24 - 8/7

Thimbleberry - Rubus parviflorus - 7/31 - 8/28

Twisted-stalk, Rose - Streptopus roseus - 8/21 - 8/28

 

 

REFERENCES:

We have many but these are the ones we use most

Newcomb’s Wildflower Guide by Lawrence Newcomb

The Peterson Field Guide Series: A Field Guide to Wildflowers

by Peterson/McKenny

The Shrub Identification Book by George W. D. Symonds

The Tree Identification Book by George W. D. Symonds

What’s Doin’ the Bloomin’? Clayton & Michele Oslund