Betula alleghaniensis, branch with staminate and pistillate catkins. Family Betulaceae, Subclass Hamamelidae. Origin: Cultivated
Quercus sp., catkin - close-up. Family Fagaceae, Subclass Hamamelidae. Origin: Cultivated
Corylus avellana, nuts (placed by some in Betulaceae). Family Corylaceae, Subclass Hamamelidae. Orig...
Betula nigra, catkin - female. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula alleghaniensis, branch with staminate (brown) and pistillate catkins. Family Betulaceae, Subc...
Betula alleghaniensis, branch with staminate (brown) and pistillate catkins. Family Betulaceae, Subc...
Betula alleghaniensis, branch with pistillate catkins. Family Betulaceae, Subclass Hamamelidae. Orig...
Betula alleghaniensis, branch with staminate and pistillate catkins (green). Family Betulaceae, Subc...
Betula alleghaniensis, bark, close. Family Betulaceae, Subclass Hamamelidae. Origin: Cultivated
Betula alleghaniensis, Pistillate inflorescence. Family Betulaceae, Subclass Hamamelidae. Origin: Cu...
Betula alleghaniensis, Node. Family Betulaceae, Subclass Hamamelidae. Origin: Cultivated
Betula papyrifera, Catkins. Family Betulaceae, Subclass Hamamelidae. Origin: Cultivated
Betula papyrifera, Leaf, catkin. Family Betulaceae, Subclass Hamamelidae. Origin: Cultivated
Betula papyrifera, Stem, bark. Family Betulaceae, Subclass Hamamelidae. Origin: Cultivated
Betula papyrifera, Leaf. Family Betulaceae, Subclass Hamamelidae. Origin: Cultivated
Betula papyrifera, Population under cultivation. Family Betulaceae, Subclass Hamamelidae. Origin: Cu...
Quercus sp., catkin - close-up. Family Fagaceae, Subclass Hamamelidae. Origin: Cultivated
Corylus avellana, nuts (placed by some in Betulaceae). Family Corylaceae, Subclass Hamamelidae. Orig...
Betula nigra, catkin - female. Family Betulaceae, Subclass Hamamelidae. Origin: Native
Betula alleghaniensis, branch with staminate (brown) and pistillate catkins. Family Betulaceae, Subc...
Betula alleghaniensis, branch with staminate (brown) and pistillate catkins. Family Betulaceae, Subc...
Betula alleghaniensis, branch with pistillate catkins. Family Betulaceae, Subclass Hamamelidae. Orig...
Betula alleghaniensis, branch with staminate and pistillate catkins (green). Family Betulaceae, Subc...
Betula alleghaniensis, bark, close. Family Betulaceae, Subclass Hamamelidae. Origin: Cultivated
Betula alleghaniensis, Pistillate inflorescence. Family Betulaceae, Subclass Hamamelidae. Origin: Cu...
Betula alleghaniensis, Node. Family Betulaceae, Subclass Hamamelidae. Origin: Cultivated
Betula papyrifera, Catkins. Family Betulaceae, Subclass Hamamelidae. Origin: Cultivated
Betula papyrifera, Leaf, catkin. Family Betulaceae, Subclass Hamamelidae. Origin: Cultivated
Betula papyrifera, Stem, bark. Family Betulaceae, Subclass Hamamelidae. Origin: Cultivated
Betula papyrifera, Leaf. Family Betulaceae, Subclass Hamamelidae. Origin: Cultivated
Betula papyrifera, Population under cultivation. Family Betulaceae, Subclass Hamamelidae. Origin: Cu...
Quercus sp., catkin - close-up. Family Fagaceae, Subclass Hamamelidae. Origin: Cultivated
Corylus avellana, nuts (placed by some in Betulaceae). Family Corylaceae, Subclass Hamamelidae. Orig...
Betula nigra, catkin - female. Family Betulaceae, Subclass Hamamelidae. Origin: Native