Disclosed is a discrimination device that enables even a beginner to easily perform double discrimination. An image analysis unit that obtains at least one of a first value and a second value by analyzing images of a plurality of stock seedlings, and the first value is included in the first range. A determination unit 12 that determines whether or not a specific stock seedling is a double blooming seedling by determining at least one of whether or not the second value is included in the second range. . [Selection] Figure 1
