Texas FFA Nursery Landscape Practice Exam

An 'x' in the botanical name of a plant means the plant?

1. Has been grafted

2. Is a true hybrid

3. Comes true to type from only seed propagation

4. Comes true to type from seed and vegetative propagation

The correct answer is: Is a true hybrid

In botanical nomenclature, the presence of an 'x' in a plant's name indicates that the plant is indeed a true hybrid. This signifies that the plant is the result of a crossbreed between two different species or varieties, which is often done to combine desirable traits from both parent plants. This notation is a universal standard in taxonomy to provide clarity regarding the origin of the plant, helping horticulturists and researchers identify hybrids specifically. The other options address different propagation methods and plant characteristics. Some suggest that the plant has been grafted or that it can propagate true to type from seeds or other methods, which do not directly relate to the hybrid nature indicated by the 'x'. The clarity that comes with knowing a plant is a true hybrid is crucial for understanding its growth habits, potential uses, and limitations in cultivation.