Catkins are also called aments
Amentum. Also Ament
An amentum is another name for a catkin - a type of inflorence consisting of a slender axis with many unisexual apetalous flowers along its sides.
alder
An ament is another name for an amentum or catkin - a type of inflorescence consisting of a slender axis with many unisexual apetalous flowers along its sides.
The accepted scientific name is Calosima dianella.
There are several places where someone can find more information regarding the plan called catkin. Some possible options are Wikipedia, Name That Plant and Wisegeek.
Comptonia
Catkin
Almost anything CAN be smoked.
Siver Birch
poplar, hazelnuts for starters
the answer is AMENT