I-California redwood yaqokwa njengeSihlahla Sesifunda Sase-California esisemthethweni yisiShayamthetho Sesifundazwe ngo-1937. Uma seyivamile kuyo yonke iNyakatho Nenkabazwe, ama-redwood atholakala kuphela oGwini lwe-Pacific. Izikhotha eziningi nezitendi zezihlahla eziphakeme zilondolozwe eziqiwini zikahulumeni kazwelonke nasemahlathini. Empeleni kunezinhlobo ezimbili ze-redwood yaseCalifornia: i-redwood yogwini (I-Sequoia sempervirens) kanye ne-sequoia enkulu (I-Sequoiadendron giganteum).
I-redwoods yogu yizihlahla ezinde kakhulu emhlabeni; eyodwa efinyelela ngaphezu kwamamitha angama-379 ubude ikhula eRedwood National and State Parks.
I-sequoia eyodwa enkulu, i-General Sherman Tree e-Sequoia & Kings Canyon National Park, ingaphezu kwamamitha angu-274 ukuphakama futhi ingaphezu kwamamitha angu-102 ukuzungeza esisekelweni sayo; ibhekwa kabanzi njengesihlahla esikhulu kunazo zonke emhlabeni ngevolumu iyonke.