Cal. Food & Agr. Code § 80118
Except as provided in Section 80072, no provision of this division prohibits any person from harvesting or possessing, for purposes other than resale, five or fewer native plants or from cutting, removing, harvesting, transporting, or possessing, for purposes other than resale, any dead mesquite or palo verde in amounts less than one cord, from land owned by the person, or from land leased by the person when the landowner's written permission to harvest has been obtained and is exhibited, or from land not owned by the person when the person exhibits written permission to harvest from the landowner. The written permission shall not be valid unless it includes a description of the land satisfying the requirements of Section 80114 and the address and telephone number of the landowner.
Persons harvesting five or fewer native plants, for purposes other than resale, and persons cutting, removing, harvesting, transporting, or possessing any dead mesquite or palo verde, for purposes other than resale, in amounts less than one cord shall not be required to obtain and exhibit any permits, tags and seals, or wood receipts.
Persons possessing six or more harvested native plants shall obtain and exhibit a tag and seal for the sixth native plant and for each additional native plant in his or her possession.
Ca. Food and Agric. Code § 80118