Cal. Rev. & Tax. Code § 429

Notwithstanding the provisions of Section 105(b) of this code, in valuing land enforceably restricted pursuant to this article, fruit-bearing or nut-bearing trees and vines on the land and not exempt from taxation shall be valued as land. Any income shall include that which can be expected to be derived from such trees and vines and no other value shall be given such trees and vines for the purpose of assessment.