| Family |
Taxon |
Common Name | Photographs |
| Cyperaceae |
Carex oligocarpa Willd. |
few-fruited gray sedge, rich-woods sedge |
|
| Cyperaceae |
Carex pensylvanica Lam. |
common oak sedge, Pennsylvania sedge |
|
| Cyperaceae |
Carex richardsonii R.Br. |
prairie hummock sedge, Richardson's sedge |
|
| Cyperaceae |
Carex rosea Schkuhr ex Willd. |
curly-styled wood sedge, rosy sedge, stellate sedge |
|
| Cyperaceae |
Carex scoparia Schkuhr ex Willd. var. scoparia |
broom sedge, lance-fruited oval sedge |
|
| Cyperaceae |
Carex sparganioides Muhl. ex Willd. |
bur-reed sedge, loose-headed bracted sedge |
|
| Cyperaceae |
Carex sprengelii Dewey ex Spreng. |
long-beaked sedge, Sprengel's sedge |
|
| Cyperaceae |
Carex tribuloides Wahlenb. var. tribuloides |
awl-fruited oval sedge, blunt-broom sedge |
|
| Cyperaceae |
Carex trichocarpa Willd. |
hairy-fruit lake sedge, hairy-fruit sedge |
|
| Cyperaceae |
Carex umbellata Schkuhr ex Willd. |
early oak sedge, hidden sedge, parasol sedge |
|
| Cyperaceae |
Carex vesicaria L. |
blister sedge, tufted lake sedge |
|
| Cyperaceae |
Carex vulpinoidea Michx. |
brown fox sedge, fox sedge |
|
| Juglandaceae |
Carya cordiformis (Wangenh.) K.Koch |
bitter-nut hickory, pig-nut, yellow-bud hickory |
|
| Berberidaceae |
Caulophyllum thalictroides (L.) Michx. |
blue cohosh, papoose-root, squaw-root |
|
| Celastraceae |
Celastrus scandens L. |
American bittersweet, climbing bittersweet |
|
| Poaceae |
Cenchrus longispinus (Hack.) Fernald |
field sandbur, innocent-weed, mat sandbur, sandbur |
|
| Asteraceae |
Centaurea biebersteinii DC. |
spotted knapweed |
|
| Caryophyllaceae |
Cerastium fontanum Baumg. emend Jalas subsp. vulgare (Hartm.) Greuter & Burdet |
big mouse-ear chickweed, common chickweed, common mouse-ear, mouse-ear chickweed |
|
| Scrophulariaceae |
Chaenorhinum minus (L.) Lange |
dwarf snapdragon, lesser toadflax, small snapdragon |
|
| Caesalpiniaceae |
Chamaecrista fasciculata (Michx.) Greene |
golden cassia, locust-weed, partridge pea, sleeping-plant |
|
| Euphorbiaceae |
Chamaesyce nutans (Lag.) Small |
eye-bane, nodding spurge |
|
| Chenopodiaceae |
Chenopodium album L. |
common lamb's-quarters, lamb's-quarters, pigweed |
|
| Chenopodiaceae |
Chenopodium standleyanum Aellen |
Standley's goosefoot, woodland goosefoot |
|
| Apiaceae |
Cicuta maculata L. |
common water-hemlock, spotted water-hemlock |
|
| Asteraceae |
Cirsium altissimum (L.) Spreng. |
tall thistle, wood thistle |
|
| Asteraceae |
Cirsium discolor (Muhl. ex Willd.) Spreng. |
field thistle, pasture thistle, prairie thistle |
|
| Asteraceae |
Cirsium hillii (Canby) Fernald |
Hill's thistle, hollow-rooted thistle, prairie thistle |
|
| Asteraceae |
Cirsium vulgare (Savi) Ten. |
bull thistle |
|
| Santalaceae |
Comandra umbellata (L.) Nutt. subsp. umbellata |
bastard-toadflax, false toadflax |
|
| Asteraceae |
Conyza canadensis (L.) Cronquist var. canadensis |
Canadian horseweed, fleabane, hogweed |
|
| Asteraceae |
Coreopsis palmata Nutt. |
finger tickseed, prairie coreopsis, prairie tickseed, stiff tickseed |
|
| Cornaceae |
Cornus amomum Mill. var. schuetzeana (C.A.Mey.) Rickett |
blue-fruited dogwood, silky dogwood |
|
| Cornaceae |
Cornus racemosa Lam. |
gray dogwood, northern swamp dogwood, panicled dogwood |
|
| Cornaceae |
Cornus stolonifera Michx. |
red osier dogwood |
|
| Cuscutaceae |
Cuscuta coryli Engelm. |
hazel dodder |
|
| Cuscutaceae |
Cuscuta gronovii Willd. ex Roem. & Schult. var. gronovii |
common dodder, love dodder, scald-weed, swamp dodder |
|
| Cyperaceae |
Cyperus esculentus L. var. leptostachyus Boeck. |
field nut sedge, flat sedge, yellow nut sedge |
|
| Cyperaceae |
Cyperus lupulinus (Spreng.) Marcks |
Great Plains flat sedge, sand cyperus, sand sedge |
|
| Cyperaceae |
Cyperus lupulinus (Spreng.) Marcks subsp. macilentus (Fernald) Marcks |
Great Plains flat sedge, sand cyperus, slender sand sedge |
|
| Cyperaceae |
Cyperus X mesochorus Geise |
midland sand sedge |
|
| Cyperaceae |
Cyperus strigosus L. |
false nut sedge, straw-colored cyperus |
|
| Dryopteridaceae |
Cystopteris tenuis (Michx.) Desv. |
MacKay's brittle fern, upland brittle bladder fern |
|
| Fabaceae |
Dalea purpurea Vent. var. purpurea |
purple prairie-clover, violet prairie-clover |
|
| Brassicaceae |
Descurainia pinnata (Walter) Britton subsp. brachycarpa (Richardson) Detling |
green tansy mustard, pinnate tansy mustard, western tansy mustard |
|
| Fabaceae |
Desmodium canadense (L.) DC. |
Canadian tick-trefoil, showy tick-trefoil |
|
| Fabaceae |
Desmodium illinoense A.Gray |
Illinois tick-trefoil, prairie tick-trefoil |
|
| Fabaceae |
Desmodium paniculatum (L.) DC. var. dillenii (Darl.) Isely |
Dillenius' tick-trefoil, panicled tick-trefoil, perplexed tick-trefoil |
|
| Fumariaceae |
Dicentra cucullaria (L.) Bernh. |
Dutchman's-breeches |
|
| Poaceae |
Dichanthelium acuminatum (Sw.) Gould & C.A.Clark |
hairy panic grass |
|
| Poaceae |
Dichanthelium acuminatum (Sw.) Gould & C.A.Clark X D. boreale (Nash) Freckmann |
|
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