Cal. PROB § 21108

The law of this state does not include (a) the common law rule of worthier title that a transferor cannot devise an interest to his or her own heirs or (b) a presumption or rule of interpretation that a transferor does not intend, by a transfer to his or her own heirs or next of kin, to transfer an interest to them. The meaning of a transfer of a legal or equitable interest to a transferor’s own heirs or next of kin, however designated, shall be determined by the general rules applicable to the interpretation of instruments.