I-redwood yaseCalifornia yatyunjwa njengoMthi weSizwe waseCalifornia yiNdlu yoWiso-mthetho yeSizwe ngo-1937. Yakuba ixhaphakile kuMntla weHemisphere, iinkuni ezibomvu zifumaneka kuphela kuNxweme lwePasifiki. Amatyholo amaninzi kunye nezitendi zemithi emide zilondolozwe kwiipaki zelizwe nezelizwe nasemahlathini. Kukho iindidi ezimbini ze-redwood yaseCalifornia: i-redwood elunxwemeni (Sequoia iispervirens) kunye nesequoia enkulu (Sequoiadendron giganteum).
I-redwoods elunxwemeni yeyona mithi mide ehlabathini; enye efikelela ngaphezu kwe-379 iinyawo ubude ikhula kwi-Redwood National kunye ne-State Parks.
Enye i-sequoia enkulu, i-General Sherman Tree e-Sequoia & Kings Canyon National Park, ingaphezulu kweenyawo ze-274 ukuphakama kunye neenyawo ezingaphezu kwe-102 kwi-circumference kwisiseko sayo; uthathwa ngokubanzi njengowona mthi mkhulu ehlabathini ngokomthamo uwonke.