Research » Four hybrid zone tree classes
Branches of four genotypes in an ephemeral, intraspecific Metrosideros polymorpha hybrid zone: var. incana (left), var. glaberrima (bottom), F1 hybrid (top), and backcross-incana hybrid (right).

Branches of four genotypes in an ephemeral, intraspecific Metrosideros polymorpha hybrid zone: var. incana (left), var. glaberrima (bottom), F1 hybrid (top), and backcross-incana hybrid (right).