Betula nigra, female catkin. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Quercus nigra, whole plant. Family Fagaceae, Subclass Hamamelidae. Origin: Native
Quercus nigra, Developing fruit - small. Family Fagaceae, Subclass Hamamelidae. Origin: Native
Alnus serrulata, female catkin (close up). Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula nigra, female catkin. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula nigra, catkin - female. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula nigra, whole plant. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula nigra, Plant/habitat. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula nigra, Shoot with bark. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula nigra, Leafy branch. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula populifolia, Leaves. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula populifolia, Bark. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula populifolia, Inflorescence. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Quercus nigra, Catkin - close. Family Fagaceae, Subclass Hamamelidae. Origin: Native
Betula occidentalis, branch. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Salix nigra, female catkin. Family Salicaceae, Subclass Dilleniidae. Origin: Native
Quercus nigra, whole plant. Family Fagaceae, Subclass Hamamelidae. Origin: Native
Quercus nigra, Developing fruit - small. Family Fagaceae, Subclass Hamamelidae. Origin: Native
Alnus serrulata, female catkin (close up). Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula nigra, female catkin. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula nigra, catkin - female. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula nigra, whole plant. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula nigra, Plant/habitat. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula nigra, Shoot with bark. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula nigra, Leafy branch. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula populifolia, Leaves. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula populifolia, Bark. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula populifolia, Inflorescence. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Quercus nigra, Catkin - close. Family Fagaceae, Subclass Hamamelidae. Origin: Native
Betula occidentalis, branch. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Salix nigra, female catkin. Family Salicaceae, Subclass Dilleniidae. Origin: Native
Quercus nigra, whole plant. Family Fagaceae, Subclass Hamamelidae. Origin: Native
Quercus nigra, Developing fruit - small. Family Fagaceae, Subclass Hamamelidae. Origin: Native
Alnus serrulata, female catkin (close up). Family Betulaceae, Subclass Hamamelidae. Origin: Native