The cross performed between two plants belonging to different species(having different characters) is referred to as cross pollination(hybrid) as both the plants are heterozygous for two different traits.

For example: Let’s look at the two different traits we're examining are color and height separately. In other words, each plant has:

One allele R for red color and one allele r for white color, produces a pink flower.

One allele T for long height and one recessive allele t, which produces a dwarf pea plant.