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 | |
| Circaea ×intermedia | Enchanter's Nightshade | |
| Cinna latifolia | Drooping Woodreed Slender Woodreed | |
| 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. maculata | Spotted Water Hemlock | |
| Cirsium muticum | Swamp Thistle | |
| Cirsium pumilum | Pasture Thistle | |
| Clethra alnifolia | Coastal Pepperbush Coastal Sweet Pepperbush Coastal Sweet Pepper Alderleaf Pepperbush Alderleaf Clethra Clethra Summer Sweet | |
| Clintonia borealis | Bluebead Yellow Bluebead-lily Clintonia Blue-bead Lily | |
| Claytonia caroliniana | Carolina Springbeauty | |
| Claytonia caroliniana var. caroliniana | Carolina Springbeauty | |
| Cladrastis kentukea | Kentucky Yellowwood Yellowwood Gopherwood Virgilia | |
| Cladium mariscoides | Smooth Sawgrass | |
| Clematis occidentalis | Western Blue Virginsbower | |
| Clematis occidentalis var. occidentalis | Western Blue Virginsbower Purple Clematis | |
| Clarkia pulchella | Deerhorn Clarkia Beautiful Clarkia Ragged Robin Clarkia Ragged Robin Pink Fairies | |
| Claytonia virginica | Virginia Springbeauty Springbeauty | |
| Clematis virginiana | Devil's Darning Needles Virgin's Bower Old Man's Beard | |
| Claytonia virginica var. virginica | Virginia Springbeauty | |
| Clinopodium vulgare | Wild Basil | |
| 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 | |
| Coreopsis basalis | Goldenmane Tickseed Golden-wave | |
| Cornus canadensis | Bunchberry Dogwood Canadian Bunchberry | |
| Collinsonia canadensis | Richweed Stoneroot Citronella Horsebalm | |
| Conyza canadensis | Horseweed Canadian Horseweed | |
| Conyza canadensis var. canadensis | Canadian Horseweed | |
| Conyza canadensis var. pusilla | Canadian Horseweed | |
| Conioselinum chinense | Chinese Hemlockparsley | |
| Corylus cornuta | Beaked Hazelnut Beaked Filbert | |
| Corylus cornuta var. cornuta | Beaked Hazel Beaked Hazelnut | |
| 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 | |
| Coreopsis grandiflora | Largeflower Tickseed Large-flower Tickseed Common Coreopsis | |
| Coreopsis grandiflora var. harveyana | Largeflower Tickseed | |
| Coreopsis lanceolata | Lanceleaf Coreopsis Lance-leaved Coreopsis Lanceleaf Tickseed Sand Coreopsis | |
| Collomia linearis | Tiny Trumpet Narrow-leaf Mountain-trumpet Collomia | |
| Corallorhiza maculata | Summer Coralroot Spotted Coralroot Speckled Coral Root Large Coral Root Many-flowered Coral Root | |
| Corallorhiza maculata var. maculata | Summer Coralroot | |
| Cornus obliqua | Silky Dogwood Pale Dogwood Swamp Dogwood Kinnikinnik | |
| 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 | |
| Corallorhiza odontorhiza var. pringlei | Autumn Coral Root Autumn Coralroot | |
| Comarum palustre | Purple Cinquefoil Purple Marshlocks Marsh Cinquefoil | |
| Comptonia peregrina | Sweet-fern Sweetfern | |
| Coreopsis pubescens | Star Tickseed Hairy Tickseed | |
| Coreopsis pubescens var. robusta | Star Tickseed | |
| Cornus racemosa | Gray Dogwood | |
| Cornus rugosa | Roundleaf Dogwood | |
| Cornus sericea | Red Osier Dogwood Red Osier Red-twig Dogwood | |
| Corydalis sempervirens | Rock Harlequin | |
| 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 | |
| Corallorhiza trifida | Yellow Coralroot Early Coralroot | |
| Coptis trifolia | Threeleaf Goldthread Three-leaf Goldthread Canker Root | |
| Coreopsis tripteris | Tall Tickseed Tall Coreopsis | |
| Comandra umbellata | Bastard Toadflax | |
| Comandra umbellata ssp. umbellata | Bastard Toadflax | |
| Coreopsis verticillata | Threadleaf Coreopsis Whorled Tickseed Whorled Coreopsis | |
| Crataegus ×anomala | Arnold Hawthorn | |
| Crassula aquatica | Water Pygmyweed | |
| Crataegus brainerdii | Brainerd's Hawthorn | |
| Cryptotaenia canadensis | Canadian Honewort Wild Chervil | |
| Crataegus chrysocarpa | Fireberry Hawthorn | |
| Crataegus chrysocarpa var. chrysocarpa | Fireberry Hawthorn Red Haw Red-fruited Hawthorn Scarlet Hawthorn | |
| Crataegus coccinioides | Kansas Hawthorn | |
| Crataegus compta | Adorned Hawthorn | |
| Crataegus crus-galli | Cockspur Hawthorn Cockspur Thorn Newcastle Hawthorn Newcastle Thorn Hog Apple | |
| Crataegus dilatata | Broadleaf Hawthorn | |
| Crataegus dissona | Northern Hawthorn | |
| Crataegus dodgei | Dodge's Hawthorn Dodge Hawthorn | |
| Crataegus flabellata | Fanleaf Hawthorn | |
| Crataegus forbesiae | Forbes's Hawthorn | |
| Crataegus ×haemacarpa | Hawthorn | |
| Crataegus holmesiana | Holmes' Hawthorn | |
| 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 jesupii | Jesup Hawthorn Jesup's Hawthorn | |
| Crataegus lucorum | Grove Hawthorn | |
| Crataegus lumaria | Roundleaf Hawthorn | |
| Crataegus macrosperma | Bigfruit Hawthorn Large-seeded Hawthorn | |
| Crataegus membranacea | Tissueleaf Hawthorn | |
| Croton michauxii | Michaux's Croton | |
| Croton michauxii var. ellipticus | Michaux's Croton | |
| Croton michauxii var. michauxii | Michaux's Croton | |
| Crataegus mollis | Downy Hawthorn White Thorn Whitethorn Scarlet Hawthorn Scarlet Haw Red Haw Downy Thorn | |
| Crataegus pedicellata | Scarlet Hawthorn | |
| Crataegus pequotorum | Connecticut Hawthorn | |
| Crataegus pringlei | Pringle's Hawthorn | |
| Crataegus pruinosa | Waxyfruit Hawthorn | |
| Crataegus punctata | Dotted Hawthorn White Thorn Dotted Haw | |
| Crotalaria sagittalis | Arrowhead Rattlebox | |
| Crataegus schuettei | Royal Hawthorn Schuette's Hawthorn | |
| Crataegus scabrida | Rough Hawthorn | |
| Crataegus spatiosa | New London Hawthorn | |
| scientific name | common name(s) | image gallery |
