Cruciferous plants are recognized by their cross-shaped flowers, each with a unique structure that indicates edibility. When flowers aren't in bloom, identification relies on leaf structure, resembling a violin with a head and multiple 'hands', and a distinct rough texture.

These plants, including white mustard with its white spikes, contain mustard oil, imparting a pungent aroma and a mustard-like flavor when the stem is used. According to the Law of Energy Flow, the part of the plant where the most energy is invested is typically the most nutritious and edible. This rule guides foragers in Ofer Forest, helping them identify the most beneficial parts of these versatile and flavorful plants.