A 
samara is a form of 
tree seed in which the seed is somewhat flattened and encased within a flat sheath of fibrous, papery tissue.  This form enables the wind to carry the seed a short distance away from the parent tree.  A particular form of samara is sometimes called a key, where the papery sheath extends far out to one side so that the seed spirals as it falls, helping it to move out from the parent tree.  Trees with rounded samaras include the 
elms (genus 
Ulmus) and the 
hoptree, 
Ptelea trifoliata.  Trees with the elongated keys include the 
maples (genus 
Acer) and the 
ashes (genus 
Fraxinus).
Samara, Russia is a large city to the east of the Volga River. It is also the name of an oblast with this city as its province capital.
Lada Samara - a model of Lada automobile named after the city.
All Wikipedia text 
is available under the 
terms of the GNU Free Documentation License