ES 203: Spring Flora of the Western Great Lakes
Species and Family List
* Indicates species that are not native to the Greater Chicago Region
Lake Forest Campus, May 15
*Alliaria petiolata Brassicaceae
Anemone quinquefolia Ranunculaceae
Caltha palustris Ranunculaceae
Cercis canadensis Fabaceae
Mertensia virginica Boraginaceae
*Pyrus calleryana Rosaceae
Stylophorum diphyllum Papaveraceae
*Taraxacum officinale Asteraceae
Trillium grandiflorum Trilliaceae
Trillium recurvatum Trilliaceae
Viola sororia Violaceae
Messenger Woods, Raccoon Grove, Goodenow Preserve, May 16
Actaea pachypoda Ranunculaceae
Asarum canadense Aristolochiaceae
Arisaema triphyllum Araceae
Camassia scilloides Hyacinthaceae
Claytonia virginica Montiaceae
Collinsia verna Plantaginaceae
Fragaria virginiana Rosaceae
Geranium maculatum Geraniaceae
Laportea canadensis Urticaceae
Phlox divaricata Polemoniaceae
Primula meadia Primulaceae
Podophyllum peltatum Berberidaceae
Ranunculus hispidus Ranunculaceae
Smilax ecirrhata Smilacaceae
Thalictrum thalictroides Ranunculaceae
Toxicodendron radicans Anacardiaceae
Trillium flexipes Trilliaceae
Trillium sessile Trilliaceae
Indiana Dunes, May 17
Aquilegia canadensis Ranunculaceae
Arabidopsis lyrata Brassicaeae
Aralia nudicaulis Araliaceae
Aronia prunifolia Rosaceae
Calla palustris Araceae
Cypripedium acaule Orchidaceae
Drosera intermedia Droseraceae
Lithospermum carolinianum Boraginaceae
Lupinus perennis Fabaceae
Menyanthes trifoliata Menyanthaceae
Sarracenia purpurea Sarraceniaceae
Phlox bifida Polemoniaceae
Vaccinium corymbosum Ericaceae
Viola pedata Violaceae
Lake Forest Campus, May 18
Polemonium reptans Polemoniaceae
Viola labradorica Violaceae
McCormick Ravine, May 22
Antennaria neglecta Asteraceae
Crataegus mollis Asteraceae
Cypripedium calceolus Orchidaceae
Galium boreale Rubiaceae
Pedicularis canadensis Orobanchaceae
Ranunculus abortivus Ranunculaceae
Taenidia integerrima Apiaceae
Thalictrum dioicum Ranunculaceae
Uvularia grandiflora Convallariaceae
Chiwaukee Prairie, Hosah Fen, Illinois Beach State Park, May 23
Arctostaphylos uva-ursi Ericaceae
Betula pumila Betulaceae
Cakile edentula Brassicaeae
Comandra umbellata Santalaceae
Hypoxis hirsuta Hypoxidaceae
Juniperus communis Cupressaceae
Juniperus horizontalis Cupressaceae
Lithospermum canescens Boraginaceae
Lithospermum incisum Boraginaceae
Maianthemum stellatum Convallariaceae
Moehringia lateriflora Caryophyllaceae
Phlox pilosa Polemoniaceae
Prunus pumila Rosaceae
Quercus velutina Fagaceae
Sisyrinchium albidum Iridaceae
Valeriana uliginosa Valerianaceae
Spring Bluff Fen, Ryerson Woods, May 24
Arisaema dracontium Araceae
Cardamine bulbosa Brassicaceae
Cardamine pensylvanica Brassicaceae
Cypripedium candidum Orchidaceae
Hydrophyllum virginianum Boraginaceae
Enemion biternatum Ranunculaceae
Erigeron philadelphicus Asteraceae
Mitella diphylla Saxifragaceae
Osmorhiza longistylis Apiaceae
Packera aurea Asteraceae
Prunus serotina Rosaceae
Tradescantia virginiana Commelinaceae
Viburnum lentago Adoxaceae
Zizia aurea Apiaceae
Lake Forest Campus, May 25
Barbarea orthoceras Brassicaceae
*Brassica napus Brassicaceae
*Glechoma hederacea Lamiaceae
Opuntia humifusa Cactaceae
*Syringa vulgaris Oleaceae
*Thlaspi arvense Brassicaceae
*Veronica serpyllifolia Plantaginaceae
Shaw Prairie, May 29
Castilleja coccinea Orobanchaceae
*Leucanthemum vulgare Asteraceae
*Lonicera tatarica Caprifoliaceae
Potentilla simplex Rosaceae
Prunus virginiana Rosaceae
*Rhamnus cathartica Rhamnaceae
Tradescantia ohiensis Commelinaceae
Vicia americana Fabaceae
Door County, Wisconsin, May 30-June 1
Amelanchier laevis Rosaceae
Corallorhiza striata Orchidaceae
Epigaea repens Orchidaceae
Eriophorum spissum Cyperaceae
Gaultheria procumbens Ericaceae
Gaylussacia baccata Ericaceae
Iris lacustris Iridaceae
Larix laricina Pinaceae
Maianthemum canadense Convallariaceae
*Myosotis sylvatica Boraginaceae
Polygala paucifolia Polygalaceae
Potentilla anserina Rosaceae
Primula mistassinica Primulaceae
Rubus pensilvanicus Rosaceae
Sorbus decora Rosaceae Thuja occidentalis Cupressaceae
Viola pubescens Violaceae
Lake Forest Campus, June 5
Anemone canadensis Ranunculaceae
Crataegus crus-galli Rosaceae
Iris versicolor Iridaceae
Robinia pseudoacacia Fabaceae
Solanum dulcamara Solanaceae
Trifolium pratense Fabaceae
Trifolium repens Fabaceae
Vitis riparia Vitaceae
Cermak Woods, Somme Prairie, June 6
Achillea millefolium Vitaceae
Apocynum androsaemifolium Apocynaceae
Baptisia lactea Fabaceae
*Convolvulus arvensis Convolvulaceae
Heracleum maximum Apiaceae
Oxalis stricta Oxalidaceae
*Pastinaca sativa Apiaceae
Penstemon digitalis Plantaginaceae
Polygala senega Polygalaceae
Rosa blanda Rosaceae
Zizia aptera Apiaceae
Shaw Prairie, June 7
Calystegia sepium Convolvulaceae
*Hesperis matronalis Brassicaceae
*Hieracium caespitosum Asteraceae
Maianthemum racemosum Convolvulaceae
Thalictrum dasycarpum Ranunculaceae
*Viburnum opulus Adoxaceae
