Bush means, a low, branching, woody plant, from which at maturity of the bush, an annual fruit or vegetable crop is produced for commercial market for human consumption, such as a blueberry bush. The definition does not cover nursery stock or plants that produce a bush after the normal crop is harvested.
7 CFR § 760.1502
The following definitions apply to this subpart. The definitions in 718.2 and 1400.3 of this title also apply, except where they conflict with the definitions in this section. In the event of conflict, the definitions in this section apply.