Cana Palm Canada Anemone
Canada Buffaloberry Canada Lily
Canada Serviceberry (spp.) Canada Wild Ginger
Canadian Aspen Canadian Bunchberry
Canadian Hemlock (spp.) Canadian Hemlock 'Coles Prostrate'
Canadian Hemlock 'Frosty' Canadian Hemlock 'Lewisii'
Canadian Hemlock 'Macrophylla' Canadian Hemlock 'Sargentii'
Canadian Hemlock Weeping Canadian Lily
Canadian Spruce (spp.) Canadian Spruce 'Blue Alberta'
Canadian Spruce 'Cecilia' Canadian Spruce Golden
Canadian Spruce 'Rainbows End' Canadian Spruce 'Sanders Blue'
Canadian Spruce Weeping Canadian Spruce 'Wild Acres'
Canadian Thistle 'Canaertii' Eastern Red Cedar
'Canary' American Holly Canary Whitewood (spp.)
Canary Whitewood 'Arnold' Cancer Weed 'Burgundy Bliss'
Cancer Weed 'Purple Knockout' 'Candelabriformis' Common Juniper
Candle Berry Candle, Desert (spp.)
Candle, Desert 'Bright Edge' Candle, Desert 'Color Guard'
Candle, Desert 'Golden Sword' Candle, Desert Variegated
Candleberry Candy Barrel Cactus
'Candy Stripes' Moss Phlox Canna, Golden
Canna, Water Canoe Birch: papyrifera
Canyon Delphinum (spp.) Canyon Delphinum 'Laurin'
Canyon Hackberry Canyon Larkspur (spp.)
Canyon Larkspur 'Laurin' Canyon Live Oak
'Canyon Prince' Canyon Prince Wild Rye Grass Canyon Prince Wild Rye Grass (spp.)
Canyon Prince Wild Rye Grass 'Canyon Prince' 'Cape Blanco' Stonecrop: spathulifolium
'Cape Cod' American Holly Caper Tree
Caper, Jamaica Capeweed
Cardboard Cycad Cardboard Plant
Cardinal Flower, Blue (spp.) Cardinal Flower: cardinalis
Cardinal Spear Caribbean Copper Plant
Carmel Ceanothus (spp.) Carmel Ceanothus 'Carmel Creeper'
Carmel Ceanothus 'Hurricane Point' Carmel Ceanothus 'Louis Edmunds'
'Carmel Creeper' Carmel Creeper Carmel Creeper (spp.)
Carmel Creeper 'Carmel Creeper' Carmel Creeper 'Hurricane Point'
Carmel Creeper 'Louis Edmunds' 'Carnea' Vernal Witchhazel
Carolina Allspice (spp.) Carolina Allspice 'Athens'
Carolina Ash Carolina Beech
Carolina Buckthorn (spp.) Carolina Buckthorn 'Emerald Charmô'
Carolina Buckthorn: carolinianus Carolina Desert Thorn
Carolina Fanwort Carolina Hemlock
Carolina Jasmine Carolina Laurel Cherry (spp.)
Carolina Laurel Cherry 'Compacta' Carolina Lupine
Carolina Marsh Pink Carolina Rhododendron
Carolina Silverbell (spp.) Carolina Thermopsis
Carolina Wild Petunia Carolina Willow
Carolina Wolfberry 'Carousel' Mountain Laurel
Carribean Spider Lily Carrot Weed