Williams Prairie State Preserve, Johnson Co.
(by Latin family name)

Explanatory Notes

FAMILY
SPECIES
COMMON NAME
ORIGIN
Rho
Mar
Glen
Sor2
Sor1
COMMENTS/VERIFICATION
ANGIOSPERMS, GYMNOSPERMS, FERNS                  
Trees                  
Aceraceae Acer negundo L. Box-elder Native     X      
Cupressaceae Juniperus virginiana L. Eastern Red Cedar Native X         Found near west fence & on disturbed knoll now suppressed by fire & some cutting, pers. comm. R.S. Rhodes June 1997
Fabaceae Gleditsia triacanthos L. Honey Locust Native     X   X  
Fagaceae Quercus macrocarpa Michx. var. macrocarpa Bur Oak Native X   X   X  
Fagaceae Quercus velutina Lam. Black Oak Native X   X     Eliminated by fire & cutting, pers. comm. R.S. Rhodes June 1997
Fagaceae Quercus borealis Michx. f. var. maxima (Marsh.) Ashe [= Q. rubra L.] Northern Red Oak Native     X   X  
Moraceae Morus alba L. Chinese Mulberry Asia X         Found throughout, but most are knocked back to stump sprouts only by cutting & fire, pers. comm. R.S. Rhodes June 1997
Oleaceae Fraxinus pennsylvanica Marsh. var. lanceolata (Bork.) Sarg. Green Ash Native     X   X  
Rosaceae Prunus serotina Ehrh. Wild Black Cherry Native     X   X  
Rosaceae Crataegus sp. Hawthorn   X   X     Perhaps misidentification of Q. velutina, pers. comm. R.S. Rhodes June 1997
Rosaceae Malus ioensis (Wood) Britton [= Pyrus ioensis (Wood) Carruth] Wild Crab Native           Found 1 young tree near south fence east of gate, pers. comm. R.S. Rhodes June 1997
Salicaceae Populus deltoides Bartram ex Marsh. Cottonwood Native           Found at south end disturbed knoll (id Jerry Selby), pers. comm. R.S. Rhodes June 1997
Ulmaceae Ulmus rubra Muhl. Red Elm, Slippery Elm Native     X   X  
                   
Shrubs/Vines                  
Anacardiaceae Rhus glabra L. Smooth Sumac Native     X   X Not found in the 1990's except at Grabin Cemetery, pers. comm. R.S. Rhodes June 1997
Anacardiaceae Toxicodendron radicans (L.) Kuntze [= Rhus r.] Poison-Ivy, Poison-oak Native   X X   X  
Betulaceae Corylus americana Walter Hazel Nut Native X       X  
Caprifoliaceae Sambucus canadensis L. Elderberry, Common Elder Native     X   X  
Caprifoliaceae Viburnum lentago L. Nannyberry Native X       X  
Convolvulaceae Convolvulus arvensis L. Creeping Jenny Europe     X   X  
Convolvulaceae Calystegia sepium (L.) R.Br. [= Convolvulus s.] Hedge Bindweed Native/ Eurasia     X   X  
Convolvulaceae Cuscuta glomerata Choisy Rope-dodder Native X          
Cornaceae Cornus drummondii C.A. Meyer [= C. asperifolia misapplied] Rough-leaved Dogwood Native     X     Found clumps throughout in low areas, pers. comm. R.S. Rhodes June 1997
Cornaceae Cornus cf. stolonifera Michx. [= C. sericea L.] Red Ozier Dogwood Native X         Found on disturbed knoll & south fence west of knoll, pers. comm. R.S. Rhodes June 1997
Cornaceae Cornus foemina P. Miller ssp. racemosa J.S. Wilson [= C. racemosa Lam.] Gray Dogwood Native   X       Found throughout, very common some years, pers. comm. R.S. Rhodes June 1997
Fabaceae Amorpha fruticosa L. Indigo bush, False-indigo Native     X   X  
Fabaceae Apios americana Medicus Groundnut Native     X   X  
Fabaceae Strophostyles helvula (L.) Elliott Annual woolly bean Native     X   X  
Fabaceae Vicia americana Muhl. ex Willd. Vetch Native     X   X  
Fabaceae Amorpha canescens Pursh Leadplant Native     X     Found one small clone near north end disturbed knoll, pers. comm. R.S. Rhodes June 1997
Liliaceae Smilax herbacea L. Carrion Flower Native     X   X  
Polygonaceae Polygonum convolvulus L. Black Bindweed Europe     X     Found infrequently but throughout, pers. comm. R.S. Rhodes June 1997
Polygonaceae Polygonum scandens L. Climbing False Buckwheat Native     X   X  
Rhamnaceae Ceanothus americanus L. New Jersey Tea Native     X     Found throughout but suppressed by digging, pers. comm. R.S. Rhodes June 1997
Rosaceae Prunus americana Marsh. Wild Plum Native     X     Found large clone at south end of disturbed knoll along fence and near west fence
Rosaceae Rosa blanda Ait. Meadow Rose Native     X   X  
Rosaceae Rubus occidentalis L. Black Raspberry Native   X X     Found several in NW corner, pers. comm. R.S. Rhodes June 1977
Rosaceae Spiraea alba Du Roi Meadowsweet Native   X X     One large clone near center north fence & one nearly eliminated clone on south fence near gate, pers. Comm. R.S. Rhodes June 1997
Rosaceae Prunus cf. virginiana L. Choke Cherry Native X       X  
Rosaceae Rosa multiflora Thunb. ex Murray Multiflora Rose E. Asia X       X  
Rosaceae Rubus allegheniensis Porter ex Bailey Blackberry Native X       X  
Rutaceae Zanthoxylum americanum P. Miller Prickly Ash Native X       X  
Salicaceae Salix cf. discolor Muhl. Pussy-willow Native X       X  
Salicaceae Salix petiolaris J.E. Smith [= S. gracilis var. textoris] Meadow-willow Native     X   X  
Salicaceae Salix exigua Nutt. ssp. interior (Rowlee) Cronq. [= S. interior Rowlee] Sandbar Willow Native X         Found one clump in lowland to east of disturbed knoll (id R.G. Baker), pers. comm. R.S. Rhodes June 1997
Saxifragaceae Ribes sp. Gooseberry   X       X  
Vitaceae Parthenocissus quinquefolia (L.) Planch. Virginia Creeper Native     X   X  
Vitaceae Vitis riparia Michx. Riverbank Grape, Frost Grape Native     X     Found one clone on disturbed knoll; now nearly eliminated by cutting and fire, pers. comm. R.S. Rhodes June 1997
                   
Herbs                  
Acanthaceae Ruellia humilis Nutt. Wild Petunia Native     X   X Not found in 1990's except at Grabin Cemetery, pers. comm. R.S. Rhodes June 1997
Alismataceae Sagittaria latifolia Willd. Arrowhead Native       X    
Alismataceae Alisma plantago-aquatica L. [= A. subcordatum Raf.] Water-plantain Native     X   X  
Amaranthaceae Amaranthus retroflexus L. Pigweed Trop. Am.     X   X  
Apiaceae Cicuta maculata L. Water-hemlock Native     X   X  
Apiaceae Eryngium yuccifolium Michx. Rattlesnake Master Native   X X   X  
Apiaceae Oxypolis rigidor (L.) Raf. Cowbane Native     X   X  
Apiaceae Pastinaca sativa L. Wild Parsnip Eurasia   X X   X  
Apiaceae Sanicula canadensis L. Black Snakeroot Native     X   X  
Apiaceae Thaspium barbinodes (Michx.) Nutt. Meadow-parsnip Native     X      
Apiaceae Zizia aurea (L.) Koch Golden Alexanders Native     X   X  
Apiaceae Sium suave Walter Water Parsnip Native X         Found infrequently in low areas throughout, pers. comm. R.S. Rhodes June 1997
Apocynaceae Apocynum cannabinum L. Indian-hemp Native   X X   X  
Apocynaceae Apocynum sibiricum Jacq. Clasping Dogbane Native   X X   X  
Asclepiadaceae Asclepias hirtella (Pennell) Woodson [= Acerates floridana of Iowa authors] Tall Green Milkweed Native     X   X  
Asclepiadaceae Asclepias incarnata L. Swamp Milkweed Native     X   X  
Asclepiadaceae Asclepias syriaca L. Common Milkweed Native   X X      
Asclepiadaceae Asclepias tuberosa L. ssp. interior Woodson Butterfly Weed Native     X   X Not found in the 1990's, pers. Comm. R.S. Rhodes June 1997
Asclepiadaceae Asclepias verticillata L. Whorled Milkweed Native   X X   X  
Aspleniaceae Onoclea sensibilis L. Sensitive Fern Native     X   X  
Aspleniaceae Thelypteris palustris Schott var. pubescens (Lawson) Fern. [= Dryopteris thelypteris (L.) Gray] Marsh Fern Native   X X   X  
Asteraceae Achillea millefolium L. Western Yarrow Native   X X   X  
Asteraceae Ambrosia artemisiifolia L. Common Ragweed Native     X   X  
Asteraceae Ambrosia trifida L. Giant Ragweed Native     X   X  
Asteraceae Antennaria neglecta Greene Pussytoes Native     X   X  
Asteraceae Anthemis cotula L. Dog-fennel Europe     X   X  
Asteraceae Artemesia ludoviciana Nutt. White Sage Native     X      
Asteraceae Artemisia serrata Nutt. Toothed Sage Native       X    
Asteraceae Aster ericoides L. Heath Aster, Frost Weed Native     X      
Asteraceae Aster novae-angliae L. New England Aster Native     X   X  
Asteraceae Aster pilosus Willd. Hairy Aster Native     X   X  
Asteraceae Aster umbellatus Mill. Flat-topped Aster Native     X   X  
Asteraceae Bidens cernua L. Nodding Bur-marigold Native     X   X  
Asteraceae Bidens vulgata Greene Tall Beggar-ticks Native     X   X  
Asteraceae Cirsium altissimum (L.) Spreng. Tall Thistle Native     X      
Asteraceae Cirsium discolor (Muhl. ex Willd.) Sprengel Field Thistle Native     X   X  
Asteraceae Cirsium vulgare (Savi) Tenore Bull Thistle Eurasia     X   X  
Asteraceae Conyza canadensis L. Horseweed, Muletail Native     X   X  
Asteraceae Echinacea pallida Nutt. Prairie Coneflower Native     X   X Not found in 1990's, pers. comm. R.S. Rhodes June 1997
Asteraceae Eclipta alba (L.) Hassk. Yerbo-de-Tajo Native     X   X  
Asteraceae Erechtites hieracifolia (L.) Raf. ex DC. Fireweed Native     X   X  
Asteraceae Erigeron annuus (L.) Pers. Annual Fleabane Native     X   X  
Asteraceae Erigeron strigosus Muhl. ex Willd. Daisy Fleabane Native   X X   X  
Asteraceae Eupatorium perfoliatum L. Boneset Native     X   X  
Asteraceae