Children (16 direct children, 16 direct and indirect children):
Alnus incana kolaensis
Alnus incana subsp. kolaensis
Alnus incana incana
Gray alder
Alnus incana rugosa
Speckled alder
Alnus incana subsp. tenuifolia
Thinleaf alder
Alnus incana f. rubra
Alnus incana var. sibirica
Alnus incana var. americana
Alnus incana f. americana
Alnus incana var. emersoniana
Alnus incana f. emersoniana
Alnus incana var. hypomalaca
Alnus incana f. laceratifolia
Alnus incana var. bipinnatifida
Alnus incana var. argentata
Alnus incana f. pinnatipartita
Alnus incana f. bipinnatifida