- Calabazilla
- Picture 1
- Picture 2 (fruit)
- Picture 3 (flower)
- California aster
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- California bay
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- California black walnut
- Picture 1
- Picture 2
- Picture 3
- California blackberry
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Picture 6
- California buckeye
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- California buttercup
- Picture 1
- Picture 2
- California copperleaf
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- California cord grass
- Picture 1
- Picture 2
- California everlasting
- Picture 1
- Picture 2
- Picture 3
- California filago
- Picture 1
- Picture 2
- California fuchsia
- Picture 1
- Picture 2
- California hedge-parsley
- Picture 1
- Picture 2
- California honeysuckle
- Picture 1
- Picture 2
- California lilac
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Picture 6
- California marina
- Picture 1
- Picture 2 (Rare)
- Picture 3 (Rare)
- California mugwort
- California mustard
- Picture 1
- Picture 2
- California phacelia
- Picture 1
- Picture 2
- California poppy
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Picture 6
- Picture 7
- Picture 8 (albino)
- Picture 9
- Picture 10
- Picture 11
- Picture 12 (with cream cups)
- Picture 13 (with desert dandelion)
- Picture 14 (with desert dandelion)
- California sagebrush
- Picture 1
- Picture 2
- California saxifrage
- California spine-flower
- California sunflower
- Picture 1
- Picture 2
- California thistle
- Picture 1
- Picture 2
- Picture 3
- California wild rose
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Calyptridium
- Picture 1
- Picture 2
- Canadian blue grass
- Canary grass
- Canchalagua
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Picture 6
- Picture 7
- Candleholder dudleya (Santa Cruz Island)
- Cane cholla
- Canyon gooseberry
- Canyon oak
- Canyon pea
- Picture 1
- Picture 2
- Picture 3
- Canyon sunflower
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Caper spurge
- Picture 1
- Picture 2
- Carolina cranesbill
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Castor bean
- Picture 1
- Picture 2
- Picture 3
- Cat's ear
- Picture 1
- Picture 2
- Cat-tail
- Picture 1
- Picture 2
- Catalina Island live-forever
- Picture 1
- Picture 2
- Picture 3
- Catalina mariposa lily
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Picture 6
- Picture 7
- Picture 8
- Picture 9
- Picture 10
- Caterpillar phacelia
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Centaury
- Picture 1
- Picture 2
- Picture 3
- Chain fern
- Picture 1
- Picture 2
- Chalk live-forever
- Picture 1
- Picture 2
- Picture 3
- Chamise
- Picture 1
- Picture 2
- Chaparral currant
- Picture 1
- Picture 2 (berries)
- Picture 3
- Picture 4
- Picture 5
- Picture 6
- Picture 7
- Picture 8 (Berries)
- Chaparral Indian paintbrush
- Picture 1
- Picture 2
- Picture 3
- Checker lily
- Checker-bloom
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Picture 6
- Picture 7
- Cheeseweed
- Picture 1
- Picture 2
- Picture 3
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- Chia
- Chick lupine
- Picture 1
- Picture 2
- Chickweed
- Chicory
- Picture 1
- Picture 2
- Picture 3
- Chinese caps
- Picture 1
- Picture 2
- Picture 3
- Chinese houses
- Picture 1
- Picture 2 (postfire growth)
- Picture 3
- Chocolate lily
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Picture 6
- Cliff spurge
- Coast barrel cactus
- Picture 1
- Picture 2
- Coast buckwheat
- Coast cholla
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Picture 6
- Coast figwort
- Picture 1
- Picture 2
- Picture 3
- Coast goldenbush
- Picture 1
- Picture 2
- Picture 3
- Coast live oak
- Picture 1 (catkins)
- Picture 2
- Picture 3
- Picture 4 (catkins)
- Picture 5 (catkins)
- Coast live-forever
- Picture 1
- Picture 2
- Picture 3
- Coast prickly pear
- Picture 1
- Picture 2
- Picture 3
- Coast rock cress
- Picture 1
- Picture 2
- Coastal larkspur
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Coastal lotus
- Picture 1
- Picture 2
- Picture 3
- Cobweb thistle
- Picture 1
- Picture 2
- Cocklebur
- Picture 1 (burs)
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Coffee berry
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Coffee fern
- Columbine
- Common groundsel
- Picture 1
- Picture 2
- Common horsetail
- Common ice plant
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Picture 6
- Picture 7
- Picture 8
- Common lomatium
- Picture 1
- Picture 2
- Common monkey flower
- Picture 1
- Picture 2
- Common plantain
- Common rush
- Common sow thistle
- Picture 1
- Picture 2
- Common sunflower
- Picture 1
- Picture 2
- Picture 3
- Common vetch
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Picture 6
- Conejo buckwheat
- Picture 1 (Rare)
- Picture 2 (Rare)
- Picture 3 (Rare)
- Picture 4
- Picture 5
- Conejo dudleya
- Picture 1 (Rare)
- Picture 2 (Rare)
- Picture 3 (Rare)
- Picture 4 (Rare)
- Picture 5 (Rare)
- Picture 6 (Rare)
- Picture 7 (Rare)
- Conicosia
- Conyza
- Picture 1
- Picture 2
- Picture 3
- Coreopsis
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Corydalis
- Picture 1
- Picture 2
- Cottonwood
- Cow parsnip
- Coyote brush
- Picture 1
- Picture 2 (male)
- Picture 3 (female)
- Picture 4 (male)
- Picture 5 (female)
- Picture 6 (female)
- Picture 7 (female)
- Picture 8 (male)
- Picture 9
- Coyote mint
- Picture 1
- Picture 2
- Crabgrass
- Picture 1
- Picture 2
- Cream bush
- Picture 1
- Picture 2
- Cream cups
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Picture 6
- Creeping snowberry
- Picture 1
- Picture 2
- Picture 3
- Creeping wood sorrel
- Crinkled onion
- Picture 1
- Picture 2
- Picture 3
- Croton
- Crownbeard
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Cudweed
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Picture 6
- Picture 7
- Picture 8
- Curly dock
- Cylindrical clarkia
- Picture 1
- Picture 2
- Picture 3
- Picture 4
- Picture 5
- Cystoseira (Brown algae)
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