Combination search
Looking for commercially available native plant species suitable to your state or region, try the Recommended Species page.
| scientific name | common name(s) | image gallery |
| Cornus amomum | Silky Dogwood Red Willow Silky Cornel | |
| Corylus americana | American Hazelnut American Filbert | |
| Collinsonia canadensis | Richweed Stoneroot Citronella Horsebalm | |
| Conyza canadensis | Horseweed Canadian Horseweed | |
| Conyza canadensis var. canadensis | Canadian Horseweed | |
| Conyza canadensis var. pusilla | Canadian Horseweed | |
| Conoclinium coelestinum | Blue Mistflower Wild Ageratum Blue Boneset | |
| Corylus cornuta | Beaked Hazelnut Beaked Filbert | |
| Corylus cornuta var. cornuta | Beaked Hazel Beaked Hazelnut | |
| Commelina erecta | Dayflower Widow's Tears White-mouth Dayflower Whitemouth Dayflower | |
| Commelina erecta var. angustifolia | Whitemouth Dayflower Narrow-leaf Dayflower Widow's Tears | |
| Commelina erecta var. erecta | Whitemouth Dayflower Day Flower Widow's Tears | |
| Cornus florida | Flowering Dogwood Virginia Dogwood Florida Dogwood White Cornel Arrowwood American Boxwood False Box St. Peter's Crown Corona De San Pedro | |
| Cornus foemina | Stiff Dogwood Swamp Dogwood | |
| Coreopsis lanceolata | Lanceleaf Coreopsis Lance-leaved Coreopsis Lanceleaf Tickseed Sand Coreopsis | |
| Corallorhiza maculata | Summer Coralroot Spotted Coralroot Speckled Coral Root Large Coral Root Many-flowered Coral Root | |
| Corallorhiza maculata var. maculata | Summer Coralroot | |
| Corallorhiza odontorhiza | Autumn Coralroot Late Coralroot Fall Coral Root Late Southern Coral Root Small Coral Root Small-flowered Coral Root Chicken Toe Turkey Claw Dragon's Claw Fever Root Crawley Root Crawley | |
| Corallorhiza odontorhiza var. odontorhiza | Autumn Coral Root Autumn Coralroot Fall Coral-root Small-flowered Coral-root | |
| Comptonia peregrina | Sweet-fern Sweetfern | |
| Cornus racemosa | Gray Dogwood | |
| Coreopsis rosea | Pink Tickseed Rose Coreopsis Pink Coreopsis | |
| Cornus rugosa | Roundleaf Dogwood | |
| Coelorachis rugosa | Wrinkled Joint-tail Grass Wrinkled Jointgrass Wrinkled Jointtail Grass | |
| Cornus sericea | Red Osier Dogwood Red Osier Red-twig Dogwood | |
| Cornus sericea ssp. sericea | Redosier Dogwood Red Osier Dogwood | |
| Coreopsis tinctoria | Plains Coreopsis Golden Tickseed Goldenwave Calliopsis | |
| Coreopsis tinctoria var. tinctoria | Golden Tickseed Golden-wave | |
| Comandra umbellata | Bastard Toadflax | |
| Comandra umbellata ssp. umbellata | Bastard Toadflax | |
| Corallorhiza wisteriana | Spring Coral-root Spring Coral Root Early Southern Coral-root Wister's Coral-root Yellow Coral-root Arousing Coral-root Spring Coralroot | |
| Crassula aquatica | Water Pygmyweed | |
| Crataegus calpodendron | Pear Hawthorn Late Hawthorn Pear Haw Pear Thorn | |
| Cryptotaenia canadensis | Canadian Honewort Wild Chervil | |
| Crataegus crus-galli | Cockspur Hawthorn Cockspur Thorn Newcastle Hawthorn Newcastle Thorn Hog Apple | |
| Crataegus dissona | Northern Hawthorn | |
| Crataegus disperma | Spreading Hawthorn | |
| Croton glandulosus | Tooth-leaved Croton Sand Croton Tropic Croton Vente Conmigo | |
| Croton glandulosus var. septentrionalis | Vente Conmigo | |
| Crataegus intricata | Copenhagen Hawthorn Thicket Hawthorn White Hawthorn White Thorn Scarlet Hawthorn Scarlet Haw Scarlet-fruited Hawthorn Scarlet-fruited Haw | |
| Crataegus iracunda | Passionate Hawthorn Stolonbearing Hawthorn | |
| Crataegus macrosperma | Bigfruit Hawthorn Large-seeded Hawthorn | |
| Croton michauxii | Michaux's Croton | |
| Croton michauxii var. ellipticus | Michaux's Croton | |
| Crataegus pedicellata | Scarlet Hawthorn | |
| Crataegus pennsylvanica | Pennsylvania Hawthorn Pennsylvania Thorn | |
| Crataegus phaenopyrum | Washington Hawthorn Washington-thorn | |
| Crataegus pruinosa | Waxyfruit Hawthorn | |
| Crataegus punctata | Dotted Hawthorn White Thorn Dotted Haw | |
| Crotalaria sagittalis | Arrowhead Rattlebox | |
| Croton texensis var. texensis | Skunkweed Texas Croton | |
| Crataegus uniflora | Dwarf Hawthorn One-flowered Hawthorn | |
| Crataegus viridis | Green Hawthorn Southern Hawthorn | |
| Crataegus viridis var. viridis | Green Hawthorn | |
| Cuscuta compacta | Compact Dodder | |
| Cuscuta coryli | Hazel Dodder | |
| Cuscuta compacta var. compacta | Compact Dodder | |
| Cuscuta gronovii | Scaldweed Dodder | |
| Cuscuta gronovii var. gronovii | Scaldweed Love Dodder | |
| Cunila origanoides | Common Dittany | |
| Cuscuta pentagona | Fiveangled Dodder | |
| Cuscuta pentagona var. pentagona | Fiveangled Dodder | |
| Cuscuta polygonorum | Smartweed Dodder Knotweed Dodder | |
| Cuphea viscosissima | Blue Waxweed Clammy Cuphea Tarweed | |
| Cypripedium acaule | Moccasin Flower Pink Lady's Slipper | |
| Cycloloma atriplicifolium | Winged Pigweed | |
| Cyperus bipartitus | Slender Flatsedge Shining Cyperus | |
| Cystopteris bulbifera | Bulblet Bladder Fern | |
| Cyperus compressus | Poorland Flatsedge | |
| Cyperus croceus | Baldwin's Flatsedge | |
| Cyperus dentatus | Toothed Flatsedge | |
| Cyperus diandrus | Umbrella Flatsedge | |
| Cyperus echinatus | Globe Flatsedge | |
| Cyperus erythrorhizos | Redroot Flatsedge | |
| Cyperus esculentus | Yellow Nutsedge Chufa Sedge Yellow Nut-grass | |
| Cyperus filicinus | Fern Flat Sedge Fern Flatsedge | |
| Cyperus flavescens | Pale Flatsedge Yellow Flat Sedge Yellow Flatsedge | |
| Cyperus flavicomus | Whiteedge Flatsedge | |
| Cyperus grayi | Eastern Gray's Flat Sedge Gray's Flatsedge Gray’s Sedge | |
| Cyperus hystricinus | Bristly Flatsedge | |
| Cynanchum laeve | Honeyvine | |
| Cyperus lancastriensis | Manyflower Flatsedge Porter's Sedge | |
| Cyperus lupulinus | Great Plains Flatsedge | |
| Cyperus lupulinus ssp. lupulinus | Great Plains Flat Sedge Great Plains Flatsedge Hop Sedge | |
| Cyperus lupulinus ssp. macilentus | Great Plains Flatsedge Sand Cyperus | |
| Cyperus odoratus | Fragrant Flatsedge Fragrant Sedge | |
| Cypripedium parviflorum var. pubescens | Greater Yellow Lady's Slipper Large Yellow Lady's Slipper | |
| Cyperus plukenetii | Plukenet's Flatsedge | |
| Cyperus polystachyos | Manyspike Flatsedge Bunchy Sedge | |
| Cyperus polystachyos var. texensis | Bunchy Sedge Texan Flat Sedge Texan Flatsedge | |
| Cystopteris protrusa | Lowland Bladderfern | |
| Cyperus pseudovegetus | Marsh Flatsedge Marsh Flat Sedge | |
| Cyrilla racemiflora | Titi Swamp Titi Black Titi White Titi Red Titi Leatherwood Swamp Cyrilla American Cyrilla Burnwood Bark Palo Colorado | |
| Cyperus refractus | Reflexed Flat Sedge Reflexed Flatsedge Reflexed Umbrella-sedge | |
| Cyperus retrofractus | Rough Flatsedge | |
| Cyperus retrorsus | Pine Barren Flatsedge | |
| Cyperus retrorsus var. retrorsus | Pine Barren Flatsedge | |
| Cyperus strigosus | Straw-colored Flatsedge | |
| Cystopteris tennesseensis | Tennessee Bladderfern | |
| Cystopteris tenuis | Upland Brittle Bladderfern | |
| scientific name | common name(s) | image gallery |
