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

Explanatory Notes

SPECIES
FAMILY
COMMON NAME
ORIGIN
Rho
Mar
Glen
Sor2
Sor1
COMMENTS/VERIFICATION
ANGIOSPERMS, GYMNOSPERMS, FERNS                  
Trees                  
Acer negundo L. Aceraceae Box-elder Native     X      
Crataegus sp. Rosaceae Hawthorn   X         Found near west fence & on disturbed knoll now suppressed by fire & some cutting, pers. comm. R.S. Rhodes June 1997
Fraxinus pennsylvanica Marsh. var. lanceolata (Bork.) Sarg. Oleaceae Green Ash Native     X   X  
Gleditsia triacanthos L. Fabaceae Honey Locust Native     X   X  
Juniperus virginiana L. Cupressaceae Eastern Red Cedar Native X   X     Eliminated by fire & cutting, pers. comm. R.S. Rhodes June 1997
Malus ioensis (Wood) Britton [= Pyrus ioensis (Wood) Carruth] Rosaceae Wild Crab Native     X   X  
Morus alba L. Moraceae 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
Populus deltoides Bartram ex Marsh. Salicaceae Cottonwood Native     X   X  
Prunus serotina Ehrh. Rosaceae Wild Black Cherry Native     X   X  
Quercus borealis Michx. f. var. maxima (Marsh.) Ashe [= Q. rubra L.] Fagaceae Northern Red Oak Native     X     Perhaps misidentification of Q. velutina, pers. comm. R.S. Rhodes June 1997
Quercus macrocarpa Michx. var. macrocarpa Fagaceae Bur Oak Native X         Found 1 young tree near south fence east of gate, pers. comm. R.S. Rhodes June 1997
Quercus velutina Lam. Fagaceae Black Oak Native X         Found at south end disturbed knoll (id Jerry Selby), pers. comm. R.S. Rhodes June 1997
Ulmus rubra Muhl. Ulmaceae Red Elm, Slippery Elm Native     X   X  
                   
Shrubs/Vines                  
Amorpha canescens Pursh Fabaceae Leadplant Native     X   X Not found in the 1990's except at Grabin Cemetery, pers. comm. R.S. Rhodes June 1997
Amorpha fruticosa L. Fabaceae Indigo bush, False-indigo Native     X   X  
Apios americana Medicus Fabaceae Groundnut Native     X   X  
Calystegia sepium (L.) R.Br. [= Convolvulus s.] Convolvulaceae Hedge Bindweed Native/ Eurasia     X   X  
Ceanothus americanus L. Rhamnaceae New Jersey Tea Native     X   X  
Convolvulus arvensis L. Convolvulaceae Creeping Jenny Europe     X   X  
Cornus drummondii C.A. Meyer [= C. asperifolia misapplied] Cornaceae Rough-leaved Dogwood Native     X   X  
Cornus foemina P. Miller ssp. racemosa J.S. Wilson [= C. racemosa Lam.] Cornaceae Gray Dogwood Native   X        
Cornus cf. stolonifera Michx. [= C. sericea L.] Cornaceae Red Ozier Dogwood Native X         Found clumps throughout in low areas, pers. comm. R.S. Rhodes June 1997
Corylus americana Walter Betulaceae Hazel Nut Native X         Found on disturbed knoll & south fence west of knoll, pers. comm. R.S. Rhodes June 1997
Cuscuta glomerata Choisy Convolvulaceae Rope-dodder Native X         Found throughout, very common some years, pers. comm. R.S. Rhodes June 1997
Parthenocissus quinquefolia (L.) Planch. Vitaceae Virginia Creeper Native     X   X  
Polygonum convolvulus L. Polygonaceae Black Bindweed Europe     X   X  
Polygonum scandens L. Polygonaceae Climbing False Buckwheat Native     X   X  
Prunus americana Marsh. Rosaceae Wild Plum Native     X   X  
Prunus cf. virginiana L. Rosaceae Choke Cherry Native X         Found one small clone near north end disturbed knoll, pers. comm. R.S. Rhodes June 1997
Rhus glabra L. Anacardiaceae Smooth Sumac Native     X   X  
Ribes sp. Saxifragaceae Gooseberry   X         Found infrequently but throughout, pers. comm. R.S. Rhodes June 1997
Rosa blanda Ait. Rosaceae Meadow Rose Native     X   X  
Rosa multiflora Thunb. ex Murray Rosaceae Multiflora Rose E. Asia X         Found throughout but suppressed by digging, pers. comm. R.S. Rhodes June 1997
Rubus allegheniensis Porter ex Bailey Rosaceae Blackberry Native X         Found large clone at south end of disturbed knoll along fence and near west fence
Rubus occidentalis L. Rosaceae Black Raspberry Native   X X   X  
Salix cf. discolor Muhl. Salicaceae Pussy-willow Native X         Found several in NW corner, pers. comm. R.S. Rhodes June 1977
Salix exigua Nutt. ssp. interior (Rowlee) Cronq. [= S. interior Rowlee] Salicaceae Sandbar Willow Native X         One large clone near center north fence & one nearly eliminated clone on south fence near gate, pers. Comm. R.S. Rhodes June 1997
Salix petiolaris J.E. Smith [= S. gracilis var. textoris] Salicaceae Meadow-willow Native     X   X  
Sambucus canadensis L. Caprifoliaceae Elderberry, Common Elder Native     X   X  
Smilax herbacea L. Liliaceae Carrion Flower Native     X   X  
Spiraea alba Du Roi Rosaceae Meadowsweet Native   X X   X  
Strophostyles helvula (L.) Elliott Fabaceae Annual woolly bean Native     X   X  
Toxicodendron radicans (L.) Kuntze [= Rhus r.] Anacardiaceae Poison-Ivy, Poison-oak Native   X X   X  
Viburnum lentago L. Caprifoliaceae Nannyberry Native X         Found one clump in lowland to east of disturbed knoll (id R.G. Baker), pers. comm. R.S. Rhodes June 1997
Vicia americana Muhl. ex Willd. Fabaceae Vetch Native     X   X  
Vitis riparia Michx. Vitaceae Riverbank Grape, Frost Grape Native     X   X  
Zanthoxylum americanum P. Miller Rutaceae Prickly Ash Native X         Found one clone on disturbed knoll; now nearly eliminated by cutting and fire, pers. comm. R.S. Rhodes June 1997
                   
Herbs                  
Achillea millefolium L. Asteraceae Western Yarrow Native   X X   X  
Agalinis tenuifolia (M. Vahl) Raf. [= Gerardia t. var. macrophylla] Scrophulariaceae Common agalinus Native     X   X  
Agropyron repens (L.) Beauv. Poaceae Quack Grass Eurasia     X   X  
Agropyron smithii Rydb. Poaceae Western Wheatgrass Native       X   "Probably arose through chromosome doubling following hybridization between A. dasystachyum and Elymus triticoides" cf. Flora of the Great Plains (1986).
Agrostis gigantea Roth. [= Agrostis alba misapplied] Poaceae Redtop Europe     X   X  
Agrostis hyemalis (Walt.) BSP Poaceae Ticklegrass Native     X   X  
Alisma plantago-aquatica L. [= A. subcordatum Raf.] Alismataceae Water-plantain Native     X   X  
Amaranthus retroflexus L. Amaranthaceae Pigweed Trop. Am.     X   X  
Ambrosia artemisiifolia L. Asteraceae Common Ragweed Native     X   X  
Ambrosia trifida L. Asteraceae Giant Ragweed Native     X   X  
Andropogon gerardii Vitman Poaceae Big Bluestem Native     X   X  
Anemone canadensis L. Ranunculaceae Canada Anemone Native   X X   X  
Anemone virginiana L. Ranunculaceae Tall Anemone Native     X   X  
Antennaria neglecta Greene Asteraceae Pussytoes Native     X   X  
Anthemis cotula L. Asteraceae Dog-fennel Europe     X   X  
Apocynum cannabinum L. Apocynaceae Indian-hemp Native   X X   X  
Apocynum sibiricum Jacq. Apocynaceae Clasping Dogbane Native   X X   X  
Artemesia campestris L. ssp. caudata (Michx.) Hall & Clem. [= A. caudata Michx.] Asteraceae Western Sagewort Native     X   X  
Artemesia ludoviciana Nutt. Asteraceae White Sage Native     X      
Artemisia serrata Nutt. Asteraceae Toothed Sage Native       X    
Asclepias hirtella (Pennell) Woodson [= Acerates floridana of Iowa authors] Asclepiadaceae Tall Green Milkweed Native     X   X  
Asclepias incarnata L. Asclepiadaceae Swamp Milkweed Native     X   X  
Asclepias syriaca L. Asclepiadaceae Common Milkweed Native   X X      
Asclepias tuberosa L. ssp. interior Woodson Asclepiadaceae Butterfly Weed Native     X   X Not found in the 1990's, pers. Comm. R.S. Rhodes June 1997
Asclepias verticillata L. Asclepiadaceae Whorled Milkweed Native   X X   X  
Aster ericoides L. Asteraceae Heath Aster, Frost Weed Native     X      
Aster lanceolatus Willd. [A. simplex misapplied] Asteraceae Panicled Aster Native     X   X  
Aster novae-angliae L. Asteraceae New England Aster Native     X   X  
Aster pilosus Willd. Asteraceae Hairy Aster Native     X   X  
Aster umbellatus Mill. Asteraceae Flat-topped Aster Native     X   X  
Avena sativa L. Poaceae Cultivated Oats Europe     X   X  
Baptisia lactea (Raf.) Thieret [= B. leucantha T. & G.] Fabaceae White Wild Indigo Native     X   X  
Barbarea vulgaris R. Br. Brassicaceae Yellow Rocket Eurasia     X   X  
Bidens cernua L. Asteraceae Nodding Bur-marigold Native     X   X  
Bidens cf. polylepis S.F. Blake Asteraceae Ozark Tickseed-sunflower Native X         Found in lowland to east of distubed knoll, pers. comm. R.S. Rhodes June 1997
Bidens vulgata Greene Asteraceae Tall Beggar-ticks Native     X   X  
Boehmeria cylindrica (L.) Sw. Urticaceae Bog Hemp Native           Lowland north of disturbed knoll, D. Horton June 1999; possibly introduced by flood of 1993
Brassica nigra (L.) Koch Brassicaceae Black Mustard Europe     X   X  
Bromus inermis Leysser Poaceae Smooth Brome Europe   X X   X  
Bromus japonicus Thunb. ex Murray Poaceae Japanese Brome Old World     X   X  
Bromus tectorum L. Poaceae Downy Chess Europe     X   X  
Cacalia plantaginea (Raf.) Shinners [= C. tuberosa Nutt.] Asteraceae Prairie Plantain Native     X   X  
Calamagrostis canadensis (Michx.) P. Beauv. Poaceae Bluejoint Native     X   X  
Caltha palustris L. Ranunculaceae Marsh Marigold Native     X   X