Calendula officinalis
Pot Marigold
Calliandra surinamensis
Pink Powder Puff
Calliandra tergemina
Dwarf Powder Puff
Callicarpa pedunculata
Beautyberry
Callindra houstoniana
Callistephus chinensis
China aster
Calopogonium mucunoides
Calopo
Calotropis gigantea
Giant Calotrope
Calystegia pulchra
Hairy Bindweed
Camassia quamash
Camonea umbellata
Yellow Wood Rose
Campanula cervicaria
Bristly Bellflower
Campanula glomerata
Clustered Bellflower
Campanula latifolia
Giant Bellflower
Campanula patula
Spreading Bellflower
Campanula persicifolia
Peach-leaved Bellflower
Campanula rapunculoides
Creeping Bellflower
Cantharanthus roseus
Pink Periwinkle
Capsicum annum
Sweet Pepper
Capsicum frutescens
Guinea Pepper
Cardamine impatiens
Narrow-leaved Bitter-cress
Cardamine occulta
Cryptic Bittercress
Cardamine pratensis
Cuckooflower
Cardiospermum halicacabum
Lesser Balloon Vine