 |
Populus tremuloides, quaking aspen. | ||
|
Populus alba., white poplar. | ||
 |
Salix sp., willow. | ||
 |
Salix sp., willow. Inflorescence (catkin or ament) of female flowers, note insect pollinator. | ||
 |
Salix sp., willow. Catkins of male flowers. | ||
 |
Salix sp., willow. Male flowers. |
