Natural hybrids with all of these species have been recorded.

It might be a rare natural hybrid of the two mentioned species.

These two species of willow can also form natural hybrids with each other.

Simple and complex natural hybrids involving both of these species have been found.

Natural hybrids were soon found to be common occurrences all over the world.

Despite this, no natural hybrids have been observed with certainty.

The following natural hybrids involving this species have been recorded.

A number of natural hybrids with other Epipactis species are known.

Natural hybrids may occur when a species is introduced into a new habitat.

It contains around 16 species and one natural hybrid.