California Incense-cedar
Calocedrus decurrens
California Torreya
Torreya californica
Campion
Silene vulgaris
Caper Shrub
Capparis spinosa
Carob Tree
Ceratonia siliqua
Catalpa (Northern)
Catalpa speciosa
Catalpa (Southern)
Catalpa bignonioides
Caucasian Zelkova
Zelkova carpinifolia
Celandine (Greater)
Chelidonium majus
Centaury (Common)
Centaurium erythraea
Chamomile
Chamomilla recutita
Chequer Tree
Sorbus torminalis
Cherry Laurel
Prunus laurocerasus
Cherry Plum
Prunus cerasifera
Cherry Silverberry
Elaeagnus multiflora
Chickweed (Common)
Stellaria media
Chicory (Common)
Cichorium intybus
Chinese Arborvitae
Platycladus orientalis
Chufa
Cyperus esculentus
Chusan Palm
Trachycarpus fortunei
Cleavers
Galium aparine
Cloudberry
Rubus chamaemorus
Clover (Common)
Trifolium pratense
Coast Live Oak
Quercus agrifolia
Colorado Blue Spruce
Picea pungens
Coltsfoot
Tussilago farfara
Comfrey (Common)
Symphytum officinale
Cork Oak
Quercus suber
Cornel (European)
Cornus mas
Corn Lily
Clintonia borealis
Corn Salad
Valerianella locusta
Cotoneaster (Common)
Cotoneaster integerrimus
Cottonwood (Black)
Populus trichocarpa
Cottonwood (Eastern)
Populus deltoides
Coulter Pine
Pinus coulteri
Cow Parsley
Anthriscus sylvestris
Cowtail Pine
Cephalotaxus harringtonia
Crack Willow
Salix fragilis
Cranberry (Common)
Vaccinium oxycoccos
Cranberry (Mountain)
Vaccinium vitis-idaea
Creeping Jenny
Lysimachia nummularia
Crowberry (Common)
Empetrum nigrum
Cypress (Mediterranean)
Cupressus sempervirens
Cypress (Monterey)
Cupressus macrocarpa
Daisy (Common)
Bellis perennis
Dandelion (Common)
Taraxacum officinale
Date Palm
Phoenix dactylifera
Date Palm (Canary Island)
Phoenix canariensis
Dawn Redwood
Metasequoia glyptostroboides
Daylily (Common)
Hemerocallis fulva
Deadly Nightshade
Atropa belladonna
Dog Rose
Rosa canina
Dogwood (Common)
Cornus sanguinea
Douglas-Fir
Pseudotsuga menziesii
Downy Birch
Betula pubescens
Downy Oak
Quercus pubescens
Elder (Black)
Sambucus nigra
Elder (Dwarf)
Sambucus ebulus
Elder (Red)
Sambucus racemosa
Elm (American)
Ulmus americana
