Calendula
California Buckwheat
California Fan Palm, Petticoat Palm
California Juniper
California Lilac
California Pepper, Mission Pepper
California Pink Island Yarrow
California Poppy, Golden Poppy
California Rosewood
California Sycamore
Calistoga Gray-Leaved Yarrow
Calliopsis, Annual Coreopsis
Candle Delphinium, Candle Larkspur
Canyon Hackberry
Canyon Penstemon
Canyon Prince Wild Rye
Cardone Grande
Carolina Jessamine
Carolina Laurel Cherry
Cat's Claw Vine