Chir Pine Chisos Red Oak
Chitalpa (spp.) Chitalpa 'Morning Cloud'
Chitalpa 'White Morning Cloud' Chittamwood
Chittamwood: obovatus Chocolate Azara
'Choctaw' Crapemyrtle Chokecherry (spp.)
Chokecherry 'Schubert' Chonosuki Crabapple
'Christiana' Crapemyrtle Christmas Berry (spp.)
Christmas Berry 'Davis Gold' Christmas Berry: beauverdiana
'Christmas Cheer' Vernal Witchhazel Christmas Holly (spp.)
Christmas Holly 'Argentea Marginata' Christmas Holly 'Argenteo'
Christmas Holly 'Ferox Argentea' Christmas Holly 'Handsworth New Silver'
Christmas Holly 'Madame Briot' Christmas Holly 'Watereriana'
Christmas Holly Weeping Christmas Palm
Christmas Tree (spp.) Christmas Tree 'Green Spiral'
Christmas Tree: amabilis Christmas Tree: nordmanniana (spp.)
Christmas Tree: nordmanniana 'Lowry' Christmas Tree: nordmanniana 'Tortifolia'
Chulta Chusan Miniature Palm
Chusan Palm Cilician Fir
Cinnamomum Cinnamon, Bastard
Cinnamon, Chinese Cinnamon, Wild
Cinnamon, Winter Citriobatus
Citrus 'Claremont' California Holly: arbutifolia cerina
'Claudia Wannamaker' Southern Magnolia 'Cleprizam' Callery Pear
Clethra, Japanese 'Cleveland' Norway Maple
'Cloth of Gold' American Arborvitae 'Cloud 9' Flowering Dogwood
Coast Aloe Coast Araucaria
Coast Live Oak Coast Redwood (spp.)
Coast Redwood 'Filoli' Coast Redwood 'Prostrata'
Coast Redwood 'Soquel' Coast White Cedar (spp.)
'Coates' Saucer Magnolia: soulangianahybrid Cocculus
Cockspur Coral Tree Cocoa, Wild
Coconut Palm (spp.) Coconut Palm 'Malayan Dwarf'
Coconut, Double Cocoplum
Cocos Palm Cocos Plumosa
Coffee Colubrina Coffee, Wild
'Coleman' Sugar Maple 'Cole's Select' Apple Serviceberry
Colima Coliseum Maple (spp.)
Coliseum Maple Golden 'Colorado' Argentine Mesquite
Colorado Blue Spruce Colorado Fir (spp.)
Colorado Fir 'Argentea' Colorado Fir 'Compacta'
Colorado Fir 'Violacea' Colorado Red Cedar (spp.)
Colorado Red Cedar 'Chandler's Blue' Colorado Red Cedar 'Gray Gleam'
Colorado Red Cedar 'Holmes Silver' Colorado Red Cedar 'Medora'
Colorado Red Cedar 'Minima' Colorado Red Cedar 'Moonglow'
Colorado Red Cedar 'Moonlight' Colorado Red Cedar 'Pathfinder'
Colorado Red Cedar 'Platinum' Colorado Red Cedar 'Rependens'
Colorado Red Cedar 'Skyrocket' Colorado Red Cedar 'Tolleson's Green Weeping'
Colorado Red Cedar Weeping Colorado Red Cedar 'Wichita Blue'
Colorado Spruce (spp.) Colorado Spruce 'Argentea'
Colorado Spruce 'Bakeri' Colorado Spruce 'Endtz'
Colorado Spruce 'Erich Frahm' Colorado Spruce 'Fat Albert'
Colorado Spruce Golden Colorado Spruce 'Hoopsii'
Colorado Spruce 'Iseli Fastigiata' Colorado Spruce 'Iseli Foxtail'
Colorado Spruce 'Koster' Colorado Spruce 'Moerheimii'
Colorado Spruce 'Ruby Teardrops' Colorado Spruce 'Thompsen'