Caption: Weeping willow pollen (Salix babylonica). The willow (and poplar) family, Saliaceae, is characterized by having their flowers in catkins, the staminate (male) blossoms are on distinct trees from the pistillate (female) trees. Insect pollination occurs during the months of May through August. The weeping willow belongs to the group known as crack willows, from the brittleness of their twigs at the joints.
Magnification*: x260
Type: SEM
Copyright 2009 Dennis Kunkel Microscopy, Inc.
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