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SPECIES
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FAMILY
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COMMON
NAME
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ORIGIN
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Horton
& Others
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Lyon
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Frym.
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Thorne
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| ANGIOSPERMS, GYMNOSPERMS & FERNS |
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| Trees |
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| Acer saccharinum L. | Aceraceae | Silver Maple | Native |
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| Carya cordiformis (Wang.) K. Koch | Juglandaceae | Bitternut Hickory | Native | D. Horton 7/13/97 |
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X
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| Carya ovata (Mill.) K. Koch | Juglandaceae | Shagbark Hickory | Native |
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X
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| Celtis occidentalis L. | Ulmaceae | Hackberry | Native |
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X
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| Cercis canadensis L. | Fabaceae | Redbud | Native |
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| Crataegus sp. | Rosaceae | Hawthorn |
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X
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| Fraxinus pennsylvanica Marsh. var. lanceolata (Borkh.) Sarg. [= F. pennsylvanica Marsh. var. subintegerrima (Vahl) Fern.] | Oleaceae | Green Ash | Native | D. Horton 6/9/97 |
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X
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| Gleditsia triacanthos L. | Fabaceae | Honey-locust | Native |
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| Juniperus virginiana L. | Cupressaceae | Eastern Red Cedar | Native | D. Horton 6/9/97 |
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| Morus alba L. | Moraceae | Chinese Mulberry | Asia | D. Horton 7/13/97 |
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X
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| Picea abies (L.) Karsten | Pinaceae | Norway Spruce | Europe | D. Horton 5/11/97 |
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X
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| Pinus strobus L. | Pinaceae | Eastern White Pine | Native | D. Horton 6/9/97 |
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X
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| Quercus alba L. | Fagaceae | White Oak | Native | D. Horton 6/9/97 |
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| Quercus borealis Michx. f. var. maxima (Marsh.) Ashe [= Q. rubra L., nom. ambig.] | Fagaceae | Northern Red Oak | Native | D. Horton 6/9/97 |
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| Quercus macrocarpa Michx. var. macrocarpa | Fagaceae | Bur Oak | Native |
X
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| Quercus velutina Lam. | Fagaceae | Black Oak | Native | D. Horton 6/9/97 |
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X
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| Robinia pseudoacacia L. | Fabaceae | Black Locust | N. Am., not IA | D. Horton 7/8/95 |
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X
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| Tilia americana L. | Tiliaceae | Basswood, American Linden | Native | D. Horton 7/12/97 |
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X
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| Ulmus americana L. | Ulmaceae | White/American Elm | Native |
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X
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| Ulmus rubra Muhl. | Ulmaceae | Red Elm, Slippery Elm | Native |
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X
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| Shrubs/Vines |
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| Amorpha canescens Pursh | Fabaceae | Lead Plant | Native | D. Horton 6/17/95 |
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X
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| Amphicarpaea bracteata (L.) Fern. | Fabaceae | Hog Peanut | Native | D. Horton 7/13/97 |
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X
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| C. foemina P. Miller ssp. racemosa (Lam.) J.S. Wilson [= C. racemose Lam.] | Cornaceae | Gray Dogwood | Native |
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X
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| Calystegia sepium (L.) R. Br. | Convolvulaceae | Hedge Bindweed | Native/Eurasia |
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X
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| Campsis radicans (L.) Seem. ex Bureau | Bignoniaceae | Trumpet Creeper | Native |
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X
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| Ceanothus americanus L. var. pitcheri T. & G. | Rhamnaceae | New Jesey Tea | Native | D. Horton 6/17/95 |
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X
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X
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| Celastrus scandens L. | Celastraceae | Bittersweet | Native | D. Horton 6/16/97 |
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| Clematis cf. virginiana L. | Ranunculaceae | Virgin's Bower | Native | D. Horton 35598, IA |
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| Clematis pitcheri T. & G. | Ranunculaceae | Leather Flower | Native | Jim Scott 1994 |
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| Corylus americana Walter | Betulaceae | Hazel Nut | Native | D. Horton 6/22/97 |
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X
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| Dioscorea villosa L. | Dioscoreaceae | Wild Yam, Colic-root | Native | D. Horton 6/11/95 |
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X
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| Menispermum canadense L. | Menispermaceae | Moonseed | Native | D. Horton 7/8/95 |
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X
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| Polygonum convolvulus L. | Polygonaceae | Black Bindweed | Europe | D. Horton 7/8/95 |
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| Polygonum scandens L. | Polygonaceae | Climbing False Buckwheat | Native |
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X
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| Prunus cf. virginiana L. | Rosaceae | Choke Cherry | Native | D. Horton 7/13/97 |
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| Rhus glabra L. | Anacardiaceae | Smooth Sumac | Native | D. Horton 6/12/95 |
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| Rhus typhina L. | Anacardiaceae | Staghorn Sumac | Native | D. Horton 6/17/95 |
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| Ribes missouriense Nutt. ex T. & G. | Saxifragaceae | Wild Gooseberry | Native |
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X
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| Rosa arkansana Porter var. suffulta (Greene) Cockerell [= Rosa suffulta] | Rosaceae | Sunshine Rose | Native | D. Horton 7/20/97, IA |
X
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X
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| Rosa carolina L. | Rosaceae | Pasture Rose | Native | D. Horton 7/13/97, IA |
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| Rosa multiflora Thunb. ex Murray | Rosaceae | Multiflora Rose | E. Asia | D. Horton 7/20/97 |
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| Rubus flagellaris Willd. | Rosaceae | Dewberry | Native | D. Horton 5/31/97 |
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| Rubus occidentalis L. | Rosaceae | Black Raspberry | Native | D. Horton 7/20/97 |
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X
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| Salix humilis Marshall | Salicaceae | Prairie Willow | Native | D. Horton 7/13/97 |
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X
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| Sambucus canadensis L. | Caprifoliaceae | Elderbery, Common Elder | Native | D. Horton 6/12/95 |
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| Sicyos angulatus L. | Cucurbitaceae | Bur-cucumber | Native | D. Horton 7/13/97 |
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| Strophostyles helvula (L.) Elliott | Fabaceae | Annual woolly bean | Native | Jim Scott 1994 |
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| Zanthoxylum americanum P. Miller | Rutaceae | Prickly Ash | Native |
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X
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| Smilax herbacea L. | Liliaceae | Carrion Flower | Native | D. Horton 6/12/95 |
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X
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| Smilax hispida Muhl. [= S. tamnoides L. var. hispida (Muhl.) Fern.; S. rotundifolia L., misappl.] | Liliaceae | Green-brier | Native | D. Horton 7/13/97 |
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X
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| Vitis riparia Michx. | Vitaceae | Riverbank Grape, Frost Grape | Native | D. Horton 7/13/97 |
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X
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| Parthenocissus quinquefolia (L.) Planchon | Vitaceae | Virginia Creeper | Native | D. Horton 7/8/95 |
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X
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| Herbs |
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| Ruellia humilis Nutt. | Acanthaceae | Wild Petunia | Native | D. Horton 7/8/95 |
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| Ruellia strepens L. | Acanthaceae | Smooth Ruellia | Native |
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X
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| Acalypha gracilens A. Gray | Euphorbiaceae | Short-stalk Copperleaf | Native | D. Horton 9/22/95 |
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| Acalypha rhomboidea Raf. | Euphorbiaceae | Three-seeded Mercury | Native | D. Horton 35623, IA |
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| Achillea millefolium L. ssp. lanulosa (Nutt.) Piper | Asteraceae | Western Yarrow | Native | D. Horton 6/12/95 |
X
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| Adiantum pedatum L. | Adiantaceae | Northern Maidenhair Fern | Native |
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X
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| Agrimonia gryposepala Wallr. | Rosaceae | Tall Agrimony | Native | D. Horton 7/8/95 |
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| Agrostis perennans (Walter) Tuckerman | Poaceae | Upland Bent Grass | Native | D. Horton & T. Cady 6/99, IA |
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| Alliaria petiolata (Bieb.) Cavara & Grande | Brassicaceae | Garlic Mustard | Europe | D. Horton 5/4/97 |
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| Allium canadense L. | Liliaceae | Wild Onion | Native | D. Horton 6/12/95 |
X
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| Allium cernuum Roth | Liliaceae | Nodding Wild Onion | Native |
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X
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| Ambrosia artemisiifolia L. | Asteraceae | Common Ragweed | Native | D. Horton 7/93 |
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| Ambrosia trifida L. | Asteraceae | Giant Ragweed | Native | D. Horton 7/93 |
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| Andropogon gerardii Vitman | Poaceae | Big Bluestem | Native | D. Horton |
X
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X
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| Androsace occidentalis Pursh | Primulaceae | Rock Jasmine | Native | D. Horton 35702, IA 35703, IA |
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X
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| Anemone canadensis L. | Ranunculaceae | Canada Anemone | Native | D. Horton 7/8/95 |
X
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X
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| Anemone cylindrica A. Gray | Ranunculaceae | Windflower, Thimbleweed | Native | D. Horton 7/8/95 |
X
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X
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| Anemone quinquefolia L. | Ranunculaceae | Wood Anemone | Native | D. Horton 35698, IA |
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X
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| Antennaria neglecta Greene | Asteraceae | Pussytoes | Native | D. Horton 35709, IA |
X
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| Antennaria plantaginifolia (L.) Richardson | Asteraceae | Ladies'-tobacco | Native | D. Horton 35690, IA |
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X
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X
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| Apocynum androsaemifolium L. | Apocynaceae | Spreading Dogbane | Native | D. Horton 6/17/95 |
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X
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| Apocynum sibiricum Jacq. | Apocynaceae | Clasping Dogbane | Native | D. Horton 6/22/97 |
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| Aquilegia canadensis L. | Ranunculaceae | Columbine | Native | D. Horton 6/12/95 |
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X
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| Arisaema dracontium (L.) Schott | Araceae | Green Dragon | Native | R. Rhodes 1997 |
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| Arisaema triphyllum (L.) Schott. | Araceae | Jack-in-the-pulpit | Native |
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X
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| Artemisia ludoviciana Nutt. | Asteraceae | White Sage | Native | D. Horton 5/31/97 |
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X
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| Asclepias amplexicaulis J.E. Smith | Asclepiadaceae | Sand Milkweed | Native | D. Horton 6/17/95 |
X
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| Asclepias purpurascens L. | Asclepiadaceae | Purple Milkweed | Native | D. Horton 6/17/95 |
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| Asclepias syriaca L. | Asclepiadaceae | Common Milkweed | Native | D. Horton 6/24/95 |
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X
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| Asclepias tuberosa L. ssp. interior Woodson | Asclepiadaceae | Butterfly Weed | Native | D. Horton 7/8/95 |
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X
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| Asclepias verticillata L. | Asclepiadaceae | Whorled Milkweed | Native | D. Horton 7/13/97 |
X
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X
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| Asparagus officinalis L. | Liliaceae | Garden Asparagus | Europe | Jim Scott 1996 |
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| Aster azureus Lindley [= A. oolentangiensis Riddell] | Asteraceae | Sky-blue Aster | Native | D. Horton 35613, IA Ver.: A. G. Jones |
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X
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| Aster drummondii Lindley in Hooker x A. urophyllus Lindley in DC. (or nr.) | Asteraceae | Hybrid Aster | Native | D. Horton 35616, IA Det.: A. G. Jones |
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| Aster ericoides L. var. prostratus (Kuntze) S. F. Blake | Asteraceae | Squarrose/White Aster | Native | D. Horton 35620, IA Det.: A. G. Jones |
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X
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| Aster lanceolatus Willd. [A. simplex misapplied] | Asteraceae | Panicled Aster | Native | D. Horton 35618, IA Det.: A. G. Jones |
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| Aster lateriflorus (L.) Britton | Asteraceae | Side-flowered Aster | Native | D. Horton 35612, IA Ver.: A. G. Jones |
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| Aster pilosus Willd. | Asteraceae | Hairy Aster | Native | D. Horton 35615, IA Ver.: A. G. Jones |
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| Aster spp. | Asteraceae | Aster |
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X
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| Aster urophyllus Lindley in DC. [=A. sagittifolius Willd.] | Asteraceae | Arrow-lvd Aster | Native | D. Horton 35614, IA Det.: A. G. Jones |
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| Astragalus canadensis L. | Fabaceae | Milk Vetch | Native | D. Horton 7/20/97, IA |
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| Athyrium filix-femina (L.) Roth var. angustum (Willd.) Moore | Aspleniaceae | Northern Lady Fern | Native | D. Horton 6/17/95 |
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X
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| Baptisia lactea (Raf.) Thieret [= B. leucantha T. & G.] | Fabaceae | White Wild Indigo | Native | D. Horton 6/17/95 |
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| Barbarea vulgaris R.Br. | Brassicaceae | Yellow Rocket | Eurasia | D. Horton 5/4/97 |
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X
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| Bidens frondosa L. | Asteraceae | Beggar-ticks | Native | D. Horton 35624, IA |
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| Botrychium virginianum (L.) Sw. | Ophioglossaceae | Rattlesnake Fern | Native |
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X
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| Bouteloua curtipendula (Michx.) Torr. | Poaceae | Side-oats Grama | Native | D. Horton |
X
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X
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| Brickellia eupatorioides (L.) Shinners [= Kuhnia eupatorioides L.] | Asteraceae | False boneset | Native |
X
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| Bromus inermis Leysser | Poaceae | Smooth Brome | Europe | D. Horton 6/11/95 |
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| Bromus tectorum L. | Poaceae | Downy Chess | Europe | D. Horton 6/12/95 |
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| Cacalia atriplicifolia L. | Asteraceae | Indian Plantain | Native | D. Horton 6/17/95 |
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| Calamagrostis canadensis (Michx.) P. Beauv. | Poaceae | Bluejoint | Native | Jim Scott 1995 |
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| Calamagrostis stricta Lam. [= C. inexpansa] | Poaceae | Reed-grass | Native | D. Horton 7/13/97, IA |
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| Campanula americana L. | Campanulaceae | Tall Bellflower | Native | D. Horton 7/22/97 |
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X
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| Campanula rapunculoides L. | Campanulaceae | Rover Bellflower | Eurasia | D. Horton 7/8/95 |
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| Cannabis sativa L. | Moraceae | Hemp, Marijuana | Eurasia | D. Horton 6/17/95 |
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| Capsella bursa-pastoris (L.) Medic. | Brassicaceae | Shepherd's Purse | S. Europe | D. Horton 6/12/95 |
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X
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| Carex blanda Dewey | Cyperaceae | Sedge | Native | D. Horton 5/21/95 |
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| Carex cf. alopecoidea Tuckerman | Cyperaceae | Sedge | Native | D. Horton 6/12/95 |
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| Carex cf. muhlenbergii Schk. ex Willd. | Cyperaceae | Sedge | Native | D. Horton 6/16/97, IA |
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| Carex cf. normalis MacKenzie | Cyperaceae | Sedge | Native | D. Horton 6/16/97, IA |
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| Carex haydenii Dewey | Cyperaceae | Sedge | Native | D. Horton 6/16/97, IA |
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| Carex lasiocarpa Ehrh. var. americana Fern. | Cyperaceae | Slender Sedge | Native | D. Horton 6/16/97, IA |
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| Carex meadii Dewey | Cyperaceae | Sedge | Native | D. Horton 35691, IA |
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| Carex muskingumensis Schwein. | Cyperaceae | Sedge | Native | D. Horton 6/16/97, IA |
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| Carex pensylvanica Lam. | Cyperaceae | Sedge | Native | D. Horton 5/11/97 |
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X
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| Carex rosea Schk. ex Willd. | Cyperaceae | Sedge | Native |
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| Cenchrus longispinus (Hackel) Fern. | Poaceae | Sandbur | Native | D. Horton 35592, IA |
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| Cerastium vulgatum L. | Caryophyllaceae | Mouse-ear Chickweed | Eurasia | D. Horton 6/12/95 |
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| Chamaecrista fasciculata (Michx.) Greene [= Cassia fasciculata] | Fabaceae | Partridge Pea | Native |
X
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X
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| Chenopodium album L. | Chenopodiaceae | Lamb's quarters | Europe | D. Horton 7/8/95 |
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| Circaea lutetiana L. ssp. canadensis (L.) Ascherson & Magnus | Onagraceae | Enchanters Nightshade | Native | D. Horton 7/8/95 |
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| Cirsium discolor (Muhl. ex Willd.) Sprengel | Asteraceae | Field Thistle | Native | D. Horton 35604, IA |
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X
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| Cirsium hillii (Canby) Fern. | Asteraceae | Hill's Thistle | Native | M. O'Keefe 10/19/96 |
X
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