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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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COMMENTS
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| PTERIDOPHYTES (FERNS & ALLIES) | ||||
| Adiantum pedatum L. | Adiantaceae | Maidenhair fern | native | |
| Asplenium platyneuron (L.) Oakes ex DC. | Aspleniaceae | Ebony spleenwort | native | Sandy open woods and thickets. |
| Asplenium rhizophyllum L. [=Camptosorus rhizophyllus (L.) Link] | Aspleniaceae | Walking fern | native | Very common on rocky bluffs and rock outcroppings. |
| Athyrium filix-femina (L.) Roth var.angustum (Willd.) Moore | Aspleniaceae | Northern lady fern | native | |
| Athyrium pycnocarpon (Sprengel) Tidestrom [=Diplazium pycnocarpon (Sprengel) Broun] | Aspleniaceae | Narrow-leaved spleenwort | native | Lower slopes of rocky bluffs in rich soil, also along streams. Proposed as a special concern species in 1998. |
| Athyrium thelypterioides (Michx.) Desv. [=Deparia acrostichoides (Sw.) M. Kato ined.] | Aspleniaceae | Silvery spleenwort | native | Rich, wooded slopes. |
| Botrychium dissectum Sprengel f. obliquum (Muhl.) Fern. | Ophioglossaceae | Oblique grape fern | native | Both forms usually found together. |
| Botrychium dissectum Sprengel f. dissectum | Ophioglossaceae | Dissected grape fern | native | Both forms usually found together. |
| Botrychium virginianum (L.) Sw. | Ophioglossaceae | Rattlesnake fern | native | |
| Cystopteris bulbifera (L.) Bernh. | Aspleniaceae | Bulblet bladder fern | native | Rocky bluffs and outcrops. |
| Cystopteris protrusa (Weath.) Blasdell | Aspleniaceae | Creeping fragile fern | native | |
| Dryopteris carthusiana (Vill.) H.P. Fuchs [=D. spinulosa (O.F. Muell.) Watt] | Aspleniaceae | Spinulose wood fern | native | Base of bluff with northern orientation, rich woodland. |
| Dryopteris goldiana (Hooker) Gray | Aspleniaceae | Goldies fern | native | |
| Equisetum arvense L. | Equisetaceae | Common horsetail | native | Stream bank, sandy floodplain opening. |
| Equisetum hyemale L. var. affine (Engelm.) A.A. Eaton | Equisetaceae | Scouring-rush | native | Alluvial woods, riparian. |
| Matteuccia struthiopteris (L.) Todaro var. pensyvanica (Willd.) Morton | Aspleniaceae | Ostrich fern | native | Also growing in opening under electrical transmission lines. |
| Onoclea sensibilis L. | Aspleniaceae | Sensitive fern | native | |
| Osmunda claytoniana L. | Osmundaceae | Interrupted fern | native | Nice, large stands locally. |
| Pellaea glabella Mett. ex Kuhn | Adiantaceae | Smooth cliff-brake | native | Infrequent, steep rock outcroppings, exposed rock in prarie/savanna area. |
| Polystichum acrostichoides (Michx.) Schott | Aspleniaceae | Christmas fern | native | |
| Pteridium aquilinum (L.) Kuhn var. latiusculum (Desv.) Underw. ex Heller | Dennstaedtiaceae | Bracken fern | native | |
| GYMNOSPERMS (CONIFERS) | ||||
| Juniperus virginiana L. | Cupressaceae | Red cedar | native | |
| Taxus canadensis Marsh. | Taxaceae | American yew | native | Limited to the rims of the larger bluffs where it is locally common. |
| ANGIOSPERMS: DICOTYLEDONS | ||||
| Acalypha rhomboidea Raf. | Euphorbiaceae | Three-seeded mercury | native | Riparian, sandbars. |
| Acalypha virginica L. | Euphorbiaceae | Three-seeded mercury | native | Bluff top. |
| Acer negundo L. | Aceraceae | Box elder | native | |
| Acer saccharinum L. | Aceraceae | Silver maple | native | Major componant of the floodplains. |
| Acer saccharum Marsh. | Aceraceae | Sugar maple | native | Common in rich uplands. |
| Achillea millefolium L. | Asteraceae | Yarrow | native | Sandy openings in woods, and pastured areas. |
| Actaea pachypoda Ell. | Ranunculaceae | White baneberry | native | |
| Agastache nepetoides (L.) Kuntze | Lamiaceae | Yellow giant-hyssop | native | |
| Agastache scrophulariifolia (Willd.) Kuntze | Lamiaceae | Purple giant-hyssop | native | |
| Agrimonia gryposepala Wallr. | Rosaceae | Agrimony | native | Open woods, Shrubby areas. |
| Alliaria petiolata (Bieb.) Cavara & Grande | Brassicaceae | Garlic mustard | Europe | Most common along river, following alluvial soil inland. Although absent from some areas, on a whole very well established throughout Preserve. |
| Amaranthus rudis Sauer | Amaranthaceae | Amaranth | native | Riparian (sandbars). |
| Amaranthus tuberculatus (Moq.) Sauer | Amaranthaceae | Water hemp | native | Riparian. |
| Ambrosia artemisiifolia L. | Asteraceae | Common ragweed | native | |
| Ambrosia trifida L. | Asteraceae | Giant ragweed | native | |
| Amelanchier arborea (Michx. f.) Fern. | Rosaceae | Serviceberry | native | |
| Amorpha canescens Pursh | Fabaceae | Leadplant | native | Relict prairie. |
| Amphicarpaea bracteata (L.) Fern. | Fabaceae | Hog peanut | native | |
| Anemone canadensis L. | Ranunculaceae | Canada anemone | native | Moist soil. |
| Anemone quinquefolia L. | Ranunculaceae | Wood anemone | native | Moist slopes and floodplains. |
| Anemone virginiana L. | Ranunculaceae | Tall anemone | native | |
| Antennaria plantaginifolia (L.) Richardson | Asteraceae | Ladies' tobacco | native | Top of bluffs with southern exposure, savanna like areas, and pastured areas. |
| Apios americana Medicus | Fabaceae | Ground-nut | native | |
| Apocynum androsaemifolium L. | Apocynaceae | Spreading dogbane | native | Woodland openings and prairie/savanna area. |
| Apocynum cannabinum L. | Apocynaceae | Indian hemp | native | |
| Aquilegia canadensis L. | Ranunculaceae | Columbine | native | Usually on rock outcrops. |
| Arabis glabra (L.) Bernh. | Brassicaceae | Tower mustard | native | Sandy pastured areas. |
| Arabis laevigata (Muhl. ex Willd.) Poiret | Brassicaceae | Rock cress | native | Frequently seen in areas of exposed bedrock, on outcrops of rock and shallow soil. |
| Arabis shortii (Fern.) Gl. | Brassicaceae | Rock cress | native | Frequently seen, rock bluffs and outcrops, alluvial soil. |
| Aralia racemosa L. | Araliaceae | Spikenard | native | Infrequent, sheltered areas of northern oriented bluffs. |
| Arctium minus Bernh. | Asteraceae | Burdock | Eurasia | Open disturbed sandy soil, riparian.. |
| Artemisia ludoviciana Nutt. incl. var. gnaphalodes (Nutt.) T&G | Asteraceae | White sage | native | Generally found along river banks, and in clearings under high voltage power lines, the var. gnaphalodes however is confined to a sandy pastured area in the SE section. |
| Asarum canadense L. | Aristolochiaceae | Wild ginger | native | |
| Asclepias exaltata L. | Asclepiadaceae | Poke milkweed | native | Open upland woods. |
| Asclepias incarnata L. | Asclepiadaceae | Swamp milkweed | native | Rare, sandy alluvium. |
| Asclepias syriaca L. | Asclepiadaceae | Common milkweed | native | Open areas of light disturbance. |
| Asclepias verticillata L. | Asclepiadaceae | Whorled milkweed | native | Open areas, not common. |
| Aster cordifolius L. [=A.cordifolius L. var. sagittifolius (Wedem. ex Willd.) A.G. Jones] | Asteraceae | Blue wood aster | native | Upland woods and bluffs. |
| Aster ericoides L. | Asteraceae | Heath aster | native | Woodland edge, dry soil. |
| Aster lateriflorus (L.) Britton | Asteraceae | Side-flowered aster | native | Woodland edge, dry soil. |
| Aster oblongifolius Nutt. | Asteraceae | Aromatic aster | native | Open woods, bluff with southern orientation. |
| Aster ontarionis Wieg. | Asteraceae | Ontario aster | native | Frequently seen on floodplain. |
| Aster pilosus Willd. | Asteraceae | Hairy aster | native | Sandy opening. |
| Aster shortii Lindley | Asteraceae | Short's aster | native | Bluffs. |
| Barbarea vulgaris R. Br. | Brassicaceae | Yellow rocket | Eurasia | Infrequent. |
| Betula nigra L. | Betulaceae | River birch | native | Riparian. |
| Bidens cernua L. | Asteraceae | Bur marigold | native | Riparian. |
| Bidens connata Muhl. ex Willd. | Asteraceae | Beggar-ticks | native | Sandbars and mudflats. |
| Bidens frondosa L. | Asteraceae | Beggar-ticks | native | Riparian. |
| Blephilia hirsuta (Pursh) Bentham | Lamiaceae | Woodmint | native | Common in moist woodland, usually along drainage areas. |
| Boehmeria cylindrica (L.) Sw. | Urticaceae | Bog hemp | native | |
| Cacalia muhlenbergii (Sch.-Bip.) Fern. | Asteraceae | Great indian plantain | native | |
| Calystegia sepium (L.) R. Br. | Convolvulaceae | Bindweed | native | Usually in moist open alluvial soil. |
| Calystegia spithamaea (L.) Pursh | Convolvulaceae | Low bindweed | native | Sandy soil of prairie/savanna area. Very common locally. |
| Campanula americana L. | Campanulaceae | Tall bellflower | native | |
| Campanula rotundifolia L. | Campanulaceae | Harebell | native | Crevices and tops of steep stone bluffs, also exposed rock in prairie/savanna area. |
| Cannabis sativa L. | Moraceae | Hemp, Marijuana | Eurasia | Uncommon, areas of disturbance. |
| Cardamine penslyvanica Muhl. ex Willd. | Brassicaceae | Bitter cress | native | Riparian. |
| Carduus nutans L. | Asteraceae | Musk thistle | Europe | |
| Carpinus caroliniana Walter | Betulaceae | Blue beech | native | Infrequent to locally common. |
| Carya cordiformis (Wang.) K. Koch | Juglandaceae | Bitternut hickory | native | |
| Carya ovata (P. Miller) K. Koch | Juglandaceae | Shagbark hickory | native | |
| Castilleja coccinea (L.) Sprengel | Scrophulariaceae | Indian paintbrush | native | Sandy soil of prairie/savanna area. |
| Caulophyllum thalictroides (L.) Michx. | Berberidaceae | Blue cohosh | native | Rich woodland, also under electric transmission line. |
| Ceanothus americanus L. var. pitcheri T. & G. | Rhamnaceae | New Jersey tea | native | Prairie/savanna area. |
| Celtis occidentalis L. | Ulmaceae | Hackberry | native | |
| Cerastium nutans Raf. | Caryophyllaceae | Nodding chickweed | native | Exposed hilltops and alluvial valleys. |
| Chaerophyllum procumbens (L.) Crantz | Apiaceae | Chervil | native | Occasional to abundant especially on alluvial soil. |
| Chenopodium album L. | Chenopodiaceae | Lamb's quarters | Eurasia | Rock bluffs, sandy soil. |
| Chenopodium hybridum L. | Chenopodiaceae | Maple-leaved goosefoot | native | Open areas under electric transmission lines. |
| Circaea lutetiana L. ssp. canadensis (L.) Ascherson & Magnus | Onagraceae | Enchanter's nightshade | native | |
| Cirsium altissimum (L.) Sprengel | Asteraceae | Tall thistle | native | Open ground under electric transmission lines. |
| Cirsium arvense (L.) Scop. | Asteraceae | Canada thistle | Eurasia | Open ground under electric transmission lines. |
| Cirsium discolor Muhl. ex Willd. | Asteraceae | Field thistle | native | Open ground under electric transmission lines, old field. |
| Cirsium vulgare (Savi) Tenore | Asteraceae | Bull thistle | Eurasia | Open ground under electric transmission lines. |
| Claytonia virginica L. | Portulacaceae | Spring Beauty | native | |
| Clematis virginiana L. | Ranunculaceae | Virgin's bower | native | |
| Conza canadensis (L.) Cronq. | Asteraceae | Horseweed | native | |
| Cornus alternifolia L. f. | Cornaceae | Alternate-leaved dogwood | native | |
| Cornus drummondii C.A. Meyer | Cornaceae | Rough-leaved dogwood | native | Alluvial ground along stream. |
| Cornus foemina P. Miller ssp. racemosa (Lam.) J.S. Wilson | Cornaceae | Gray dogwood | native | Woodland edges. |
| Corylus americana Walter | Betulaceae | Hazelnut | native | |
| Crataegus crus-galli L. | Rosaceae | Cockspur hawthorn | native | Alluvial woodland |
| Crataegus margaretta Ashe | Rosaceae | Hawthorne | native | Upland woods. |
| Crataegus punctata Jacq. | Rosaceae | Hawthorn | native | Foodplain, and edges of woods. |
| Crataegus succulenta Schrader ex Link | Rosaceae | Hawthorn | native | Floodplain |
| Cryptotaenia canadensis (L.) DC. | Apiaceae | Honewort | native | |
| Cuscuta cuspidata Engelm. | Convolvulaceae | Dodder | native | Alluvial woods, growing on Aster ontarionis. |
| Cuscuta gronovii Willd. | Convolvulaceae | Common dodder | native | Alluvial woods, growing on Laportea canadensis. |
| Cuscuta indecora Choisy | Convolvulaceae | Dodder | native | Listed as special concern by Iowa DNR. Sandy soil on high river terrace. Growing on Solidago, Ambrosia trifida, etc. |
| Daucus carota L. | Apiaceae | Queen Anne's lace | Eurasia | Rare. |
| Dentatia laciniata Muhl. ex Willd. | Brassicaceae | Toothwort | native | |
| Desmodium canadense (L.) DC. | Fabaceae | Showy tick-trefoil | native | |
| Desmodium glutinosum (Muhl. ex Willd.) Wood | Fabaceae | Pointed tick-trefoil | native | |
| Dianthus armeria L. | Caryophyllaceae | Deptford pink | Europe | Open areas in sandy soil. |
| Dicentra canadensis (Goldie) Walp. | Papaveraceae | Squirrel corn | native | Northern oriented slopes, under rock outcrops in rich, moist soil. |
| Dicentra cucullaria (L.) Bernh. | Papaveraceae | Dutchman's breeches | native | |
| Dirca palustris L. | Thymelaeaceae | Leatherwood | native | Small, scattered groves at the base of bluffs |
| Dodecatheon meadia L. | Primulaceae | Shooting star | native | Prairie relict, small population. Also on disturbed eastern oriented bluff. |
| Echinocystis lobata (Michx.) T. & G. | Cucurbitaceae | Wild cucumber | native | Open areas under electric transmission lines and riparian. |
| Elaeagnus umbellata Thunb. | Elaeagnaceae | Autumn olive | e. Asia | Sandy open soil under power lines, bluff tops, woodland edges; infrequent. |
| Ellisia nyctelea L. | Hydrophyllaceae | Wild tomato | native | |
| Erechtites hieracifolia (L.) Raf. ex DC. | Asteraceae | Fireweed | native | Under power lines. |
| Erigeron philadelphicus L. | Asteraceae | Fleabane | native | Riparian. |
| Erigeron pulchellus Michx. | Asteraceae | Robin's plantain | native | Open, southern-oriented bluff, prairie/savanna area. Also pastured bluff. |
| Erigeron strigosus Muhl. ex Willd. | Asteraceae | Daisy fleabane | native | Openings |
| Euonymus atropurpureus Jacq. | Celastraceae | Wahoo | native | Upland woods and bluffs, likely more widespread than noted. |
| Eupatorium altissimum L. | Asteraceae | Tall thoroughwort | native | Sandy soil in clearing under power lines. |
| Eupatorium purpureum L. | Asteraceae | Purple joe-pye-weed | native | |
| Eupatorium rugosum Houtt. | Asteraceae | White snakeroot | native | |
| Euphorbia corollata Engelm. | Euphorbiaceae | Flowering spurge | native | Sandy open ground, Prairie relict. |
| Euphorbia cyathophora Murray | Euphorbiaceae | Wild poinsettia | native | Sandy openings and river banks. |
| Euphorbia hexagona Nutt. ex Sprengel | Euphorbiaceae | Six-angled spurge | native | Sandy river banks. |
| Euphorbia maculata L. | Euphorbiaceae | spotted spurge | native | Sandy soil, river banks. |
| Fragaria virginiana Duchesne | Rosaceae | Wild strawberry | native | Sandy opening in woods and prairie/savanna area. |
| Fraxinus americana L. | Oleaceae | White ash | native | Uplands. |
| Fraxinus nigra Marsh. | Oleaceae | Black ash | native | Base and lower slopes of bluffs. |
| Fraxinus pennsyvanica Marsh. var. lanceolata (Borkh.) Sarg. | Oleaceae | Green ash | native | Floodplain. |
| Galinsoga quadriradiata Ruiz & Pavon | Asteraceae | Quickweed | C&S. Amer. | Extremely disturbed soil. |
| Galium aparine L. | Rubiaceae | Cleavers | native | |
| Galium boreale L. | Rubiaceae | Northern bedstraw | native | Rocky bluffs. |
| Galium circaezans Michx. | Rubiaceae | Wild licorice | native | Bluff tops, infrequent. |
| Galium concinnum T. & G. | Rubiaceae | Shining bedstraw | native | |
| Galium triflorum Michx. | Rubiaceae | Sweet-scented bedstraw | native | |
| Geranium carolinianum L. | Geraniaceae | Cranesbill | native | Sandy pastured open areas. |
| Geranium maculatum L. | Geraniaceae | Wild geranium | native | |
| Geum canadense Jacq. | Rosaceae | White avens | native | |
| Geum vernum (Raf.) T. & G. | Rosaceae | Spring avens | native | Locally quite common in pastured floodplain woodland. Currently listed as special concern by Iowa DNR. |
| Glechoma hederacea L. | Lamiaceae | Creeping Charlie | Eurasia | Areas of disturbance, riparian. |
| Gleditsia triacanthos L. | Fabaceae | Honey locust | native | |
| Gnaphalium obtusifolium L. | Asteraceae | Everlasting | native | Sandy openings. |
| Hackelia deflexa (Wahl.) Opiz | Boraginaceae | Stickseed | native | |
| Helenium autumnale L. | Asteraceae | Sneezeweed | native | Riparian. |
| Helianthus giganteus L. | Asteraceae | Tall sunflower | native | Woodland edges. |
| Helianthus grosseserratus Martens | Asteraceae | Sawtooth sunflower | native | Sandy, alluvial opening. |
| Helianthus strumosus L. | Asteraceae | Pale-leaved sunflower | native | Woodland edges. |
| Heliopsis helianthoides (L.) Sweet | Asteraceae | Ox-eye, false sunflower | native | Prairie/savanna, openings in woodland. |
| Hepatica nobilis P. Miller var. acuta (Pursh) Steyerm. | Ranunculaceae | Hepatica | native | |
| Hesperis matronalis L. | Brassicaceae | Dame's rocket | Eurasia | Quite frequent on edges of flood plain and some moist alluvial openings where it has established itself quite nicely.. |
| Heuchera richardsonii R. Br. | Saxifragaceae | Alumroot | native | Open, southern-oriented bluff, prairie/savanna area. |
| Hydrophyllum appendiculatum Michx. | Hydrophyllaceae | Appendaged waterleaf | native | Northern oriented slopes, under rock outcrops in rich, moist soil. |
| Hydrophyllum virginianum L. | Hydrophyllaceae | Virginia waterleaf | native | |
| Hypericum punctatum Lam. | Hypericaceae | Spotted St. John's wort | native | Edges of upland woods. |
| Hypericum pyramidatum Aiton | Hypericaceae | Giant St. John's wort | native | Plants noted in pasture next to woodland, and other open areas. |
| Impatiens capensis Meerb. | Balsaminaceae | Jewelweed | native | Riparian. |
| Impatiens pallida Nutt. | Balsaminaceae | Yellow jewel weed | native | |
| Isopyrum biternatum (Raf.) T. & G. | Ranunculaceae | False rue anemone | native | Carpeting the lower slopes of the bluffs almost exclusively, down to the floodplains. |
| Juglans cinerea L. | Juglandaceae | Butternut | native | |
| Juglans nigra L. | Juglandaceae | Black walnut | native | |
| Krigia biflora (Walter) Blake | Asteraceae | False dandelion | native | Open, southern-oriented bluff, prairie/savanna area. |
| Lactuca biennis (Moench) Fern. | Asteraceae | Tall blue lettuce | native | Rare in this part of state, specimen should have been secured. |
| Lactuca canadensis L. | Asteraceae | Tall lettuce | native | Clearings. |
| Lactuca floridana (L.) Gaertner | Asteraceae | Blue lettuce | native | Woodland edges. |
| Laportea canadensis (L.) Wedd. | Urticaceae | Wood nettle | native | On rich slopes and alluvium, this species is hard to ignore when it contacts bare skin. |
| Leonurus cardiaca L. | Lamiaceae | Motherwort | Asia | Disturbed rocky areas, etal. |
| Lepidium campestre (L.) R. Br. | Brassicaceae | Field cress | Europe | Sandy pastured areas. |
| Lepidium virginicum L. | Brassicaceae | Poor-man's pepper | native | Along river bank. Sandy openings. |
| Lespedeza capitata Michx. | Fabaceae | Round-headed bush clover | native | Sandy pastures and prairie/savanna area. |
| Lindernia dubia (L.) Pennell | Scrophulariaceae | False pimpernel | native | Mud flats and sand bars, riparian. |
| Lithospermum caroliniense (Walter) MacM. | Boraginaceae | Hairy puccoon | native | Sandy, open pastures. |
| Lobelia inflata L. | Campanulaceae | Indian tobacco | ||