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 |
| Cirsium horridulum var. horridulum | Horrid Thistle Yellow Thistle | |
| Cirsium horridulum var. vittatum | Yellow Thistle Florida Thistle | |
| Cirsium lecontei | Le Conte's Thistle | |
| Circaea lutetiana | Broadleaf Enchanter's Nightshade | |
| Circaea lutetiana ssp. canadensis | Broadleaf Enchanter's Nightshade | |
| Cicuta maculata | Spotted Water Hemlock Water-hemlock Beaver Poison | |
| Cicuta maculata var. bolanderi | Spotted Water Hemlock Common Water Hemlock Poison Parsnip Spotted Cowbane Spotted Parsley Bolander Cicuta | |
| Cicuta maculata var. maculata | Spotted Water Hemlock | |
| Cirsium muticum | Swamp Thistle | |
| Cirsium nuttallii | Nuttall's Thistle | |
| Cirsium repandum | Sandhill Thistle Coastal Plain Thistle | |
| Cissus trifoliata | Cow-itch Vine Cow Itch Vine Sorrelvine Grape Ivy Possum Grape Arizona Grape Ivy | |
| Cirsium undulatum var. undulatum | Wavyleaf Thistle Gray Thistle Pasture Thistle | |
| Cirsium virginianum | Virginia Thistle | |
| Clethra acuminata | Mountain Pepperbush Mountain Sweet Pepperbush Cinnamon Clethra | |
| Clethra alnifolia | Coastal Pepperbush Coastal Sweet Pepperbush Coastal Sweet Pepper Alderleaf Pepperbush Alderleaf Clethra Clethra Summer Sweet | |
| Clinopodium ashei | Ashe's Savory Ashe's Calamint Ashe's Calamintha Ohoopee Wild Basil | |
| Cleistes bifaria | Small Spreading Pogonia | |
| Clintonia borealis | Bluebead Yellow Bluebead-lily Clintonia Blue-bead Lily | |
| Clinopodium brownei | Browne's Savory St. John's Mint Creeping Charlie Lornatee | |
| Claytonia caroliniana | Carolina Springbeauty | |
| Clematis catesbyana | Satincurls Virgin's-bower | |
| Claytonia caroliniana var. caroliniana | Carolina Springbeauty | |
| Clinopodium coccineum | Scarlet Calamint Scarlet Wild Basil Red Savory Red Mint Shrub Scarlet Balm Southern Calamint Red Basil | |
| Clematis crispa | Swamp Leatherflower Curly Clematis Blue-jasmine Curlflower Curly Virgin's Bower Marsh Clematis | |
| Clinopodium dentatum | Florida Calamint Toothed Savory | |
| Cleistes divaricata | Rosebud Orchid | |
| Clematis fremontii | Fremont's Leather-flower Fremont's Clematis Fremont's Crowsfoot Freemont's Rattleweed | |
| Clinopodium georgianum | Georgia Calamint Georgia Basil Clinopodium | |
| Clematis glaucophylla | Whiteleaf Leather-flower | |
| Cladrastis kentukea | Kentucky Yellowwood Yellowwood Gopherwood Virgilia | |
| Cladium mariscoides | Smooth Sawgrass | |
| Cladium mariscus | Swamp Sawgrass Great Fen-sedge Saw-sedge Sawtooth Sedge | |
| Clitoria mariana | Atlantic Pigeonwings Butterfly Pea | |
| Cladium mariscus ssp. jamaicense | Jamaica Swamp Sawgrass Jamaican Saw-grass Saw-grass | |
| Cliftonia monophylla | Buckwheat Tree Buckwheat Bush | |
| Clematis ochroleuca | Curlyheads | |
| Clematis reticulata | Netleaf Leather Flower | |
| Clematis socialis | Alabama Leather Flower | |
| Clintonia umbellulata | White Clintonia White Bluebead-lily Speckled Wood-lily | |
| Clematis vinacea | Ocoee Leatherflower | |
| Claytonia virginica | Virginia Springbeauty Springbeauty | |
| Clematis viorna | Vasevine Leatherflower | |
| Clematis virginiana | Devil's Darning Needles Virgin's Bower Old Man's Beard | |
| Claytonia virginica var. acutiflora | Eastern Spring Beauty Meadow Beauty Narrow-leaved Spring Beauty Virginia Springbeauty | |
| Claytonia virginica var. virginica | Virginia Springbeauty | |
| Cnidoscolus urens | Cnidoscolus Finger Rot Tread Softly | |
| Cnidoscolus urens var. stimulosus | Finger Rot Tread Softly | |
| Cornus alternifolia | Alternateleaf Dogwood Alternate-leaf Dogwood Pagoda Dogwood | |
| Conopholis americana | American Cancer-root Squawroot | |
| Cornus amomum | Silky Dogwood Red Willow Silky Cornel | |
| Corylus americana | American Hazelnut American Filbert | |
| Corispermum americanum | American Bugseed | |
| Corispermum americanum var. americanum | American Bugseed | |
| Cornus asperifolia | Eastern Roughleaf Dogwood Tough-leaf Dogwood Toughleaf Dogwood | |
| Coreopsis auriculata | Lobed Tickseed Early Coreopsis Eared Coreopsis Dwarf Tickseed | |
| Coreopsis basalis | Goldenmane Tickseed Golden-wave | |
| Cocculus carolinus | Carolina Snailseed Carolina Coralbead Carolina Moonseed Red Berried Moonseed Carolina Red Berried Moonseed | |
| 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 | |
| Coelorachis cylindrica | Cylinder Jointtail Grass Carolina Joint-tail | |
| Coreopsis delphiniifolia | Larkspurleaf Tickseed | |
| Cornus drummondii | Roughleaf Dogwood Drummond's Dogwood Rough-leaf Dogwood | |
| 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 | |
| Coreopsis falcata | Sickle Tickseed | |
| Cornus florida | Flowering Dogwood Virginia Dogwood Florida Dogwood White Cornel Arrowwood American Boxwood False Box St. Peter's Crown Corona De San Pedro | |
| Corydalis flavula | Yellow Fumewort Yellow Harlequin | |
| Cornus foemina | Stiff Dogwood Swamp Dogwood | |
| Coreopsis gladiata | Coastal Plain Tickseed Coastal Tickseed | |
| Coreopsis grandiflora | Largeflower Tickseed Large-flower Tickseed Common Coreopsis | |
| Coreopsis grandiflora var. grandiflora | Largeflower Tickseed | |
| Coreopsis grandiflora var. harveyana | Largeflower Tickseed | |
| Coreopsis grandiflora var. saxicola | Rock Largeflower Tickseed Largeflower Tickseed | |
| Coreopsis integrifolia | Fringeleaf Tickseed | |
| Coreopsis lanceolata | Lanceleaf Coreopsis Lance-leaved Coreopsis Lanceleaf Tickseed Sand Coreopsis | |
| Coreopsis latifolia | Broadleaf Tickseed | |
| Coreopsis linifolia | Texas Tickseed | |
| Convallaria majuscula | American Lily-of-the-valley American Lily Of The Valley | |
| Corallorhiza maculata | Summer Coralroot Spotted Coralroot Speckled Coral Root Large Coral Root Many-flowered Coral Root | |
| Coreopsis major | Greater Tickseed Major Coreopsis | |
| Corallorhiza maculata var. maculata | Summer Coralroot | |
| Corydalis micrantha | Smallflower Fumewort Southern Corydalis Golden Corydalis | |
| Corydalis micrantha ssp. australis | Smallflower Fumewort | |
| Coreopsis nudata | Georgia Tickseed Swamp Coreopsis | |
| Cotinus obovatus | American Smoke Tree Texas Smoke Tree Wild Smoke Tree Smoke Tree Smokebush Chittamwood | |
| 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 | |
| Coreopsis palustris | Swamp Tickseed | |
| Comptonia peregrina | Sweet-fern Sweetfern | |
| Coreopsis pubescens | Star Tickseed Hairy Tickseed | |
| Coreopsis pulchra | Woodland Tickseed Showy Tickseed Beautiful Tickseed | |
| Coreopsis pubescens var. debilis | Star Tickseed | |
| Coreopsis pubescens var. pubescens | Star Tickseed Hairy Tickseed | |
| scientific name | common name(s) | image gallery |
