Trembling aspen leaves are alternate, meaning they are arranged in a staggered pattern along the stem, rather than directly across from each other in pairs.
The scientific name for trembling aspen leaf is Populus tremuloides.
Steady or stabilize. Those words are the opposite of trembling.
Trembling Aspen
it's deciduous....
I was so nervous my knees trembled as I sat in the dentist waiting room.
it's opposite
Alternate...
alternate
Alternate
alternate :)
Alternate.
Alternate