Photographic image
Asclepias incarnata L. (swamp milkweed), umbels with flowers on stemsApril 1966
Scott, Marion
Photographic image
Populus deltoides (eastern cottonwood), male catkins and budsApril 16 1959
Scott, Marion
Photographic image
Populus deltoides (eastern cottonwood), catkin flower and budMay 1962
Scott, Marion
Photographic image
Populus deltoides (eastern cottonwood), male catkin, early springApril 1962
Scott, Marion
Photographic image
Populus deltoides (eastern cottonwood), emerging catkins and budApril 16 1959
Scott, Marion
Photographic image
Populus deltoides (eastern cottonwood), female catkin and budMay 1962
Scott, Marion
Photographic image
Populus deltoides (eastern cottonwood), male catkin in pollenMay 1962
Scott, Marion