Caesalpinia gilliesii * Native Bird of Paradise
Calandrinia grandiflora * Rock Purslane
Calceolaria integrifolia 'gold nugget' * Lady's Slipper
Calibanus hookeri * Mexican Boulder
Calliandra haematocephala * Pink Powder Puff Bush
Calliandra tweedii * Red Tassel Bush
Callistemon Cane's Hybrid * Cane's Bottlebrush
Callistemon citrinus Jeffersii * Dwarf Bottlebrush
Callistemon Little John * Dwarf Bottlebrush
Callistemon viminalis * Weeping Bottlebrush
Calochortus albus * Fairy Lily
Calochortus catalinae * Catalina Mariposa Lily
Calochortus invenustus * Mariposa Lily
Calochortus kennedyi * Desert Mariposa Lily
Calochortus leichtlinii * Mariposa Lily
Calochortus minima * Mariposa Lily
Calochortus monophyllus * Yellow Mariposa Lily
Calycanthus occidentalis * Spice Bush
Calylophus drummondii * Texas Primrose, Squarebud Primrose
Camellia japonica 'Chandleri Elegans'
Camissonia cheiranthifolia * Beach Primrose
Campanula haylodgensis * Haylodge Bell Flower
Campanula portenschlagiana * Dalmatian Bell Flower
Campanula poscharskyana * Serbian Bell Flower
Campanula poscharskyana alba * White Serbian Bell Flower
Campanula rotundifolia * Harebell
Campanula sarastro * Bell Flower
Campsis radicans * Trumpet Creeper
Canna Durban * Durban Canna Lily
Carex buchananii * Leather Leaf Sedge
Carex glauca * Gray Sedge
Carex morrowii * Variegated Sedge
Carex praegracilis * Clustered Field Sedge
Carex testacea * Orange Sedge
Carex tumulicola * Berkeley Sedge
Carissa macrocarpa * Natal Plum
Carpenteria californica* California Anemone
Caryopteris incana * Bluebeard
Caryopteris x clandonensis 'Longwood Blue'
Caryota mitis * Clustered Fishtail Palm
Caryota urens - Wine Palm, Jaggery Palm, Sago Palm, Toddy Palm, Kittul Tree
Cassia artemisioides * Silver Cassia
Catananche caerulea * Cupid's Dart
Ceanothus Anchor Bay
Ceanothus Centennial
Ceanothus Concha
Ceanothus 'Dark Star'
Ceanothus 'Frosty Dawn'
Ceanothus hearstiorum
Ceanothus oliganthus sorediatus * Jim Brush
Ceanothus Ray Hartman
Ceanothus Snow Flurry
Ceanothus 'wheeler canyon'
Ceanothus 'Yankee Point'
Centaurea gymnocarpa * Pink Dusty Miller
Centradenia grandiflora
Cerastium tomentosum * Snow in Summer
Ceratostigma plumbaginoides * Leadwort
Cercis canadensis Forest Pansy
Cercis occidentalis * Western Redbud
Cerinthe major * Honeywort
Cestrum aurantiacum * Orange Jessamine
Cestrum elegans var 'Smithii'
Cestrum newellii * Red Cestrum
Cestrum nocturnum * Night Blooming Jasmine
Chamaerops humilis - Mediterranian Fan Palm
Chilopsis linearis * Desert Willow
Chitalpa 'Pink Dawn'
Chondropetalum tectorum
Chorisia speciosa * Floss Silk Tree
Chrysocephalum apiculatum * Common Everlasting
Cistanthe grandiflora * Rock Purslane
Cistus ladanifer 'Blanche'
Cistus ladanifer maculatus * Brown Eyed Rock Rose
Cistus labdanum
Cistus purpureus * Purple Rockrose
Cistus salviifolius * Sage Leaf Rockrose
Cistus skanbergii * Rockrose
Cistus 'sunset' * Rockrose