| quaking aspen | (n) Old World aspen with a broad much-branched crown; northwestern Europe and Siberia to North Africa, Syn. Populus tremula, European quaking aspen |
| american quaking aspen | (n) slender aspen native to North America, Syn. Populus tremuloides, American aspen |
| american quaking aspen | (n) slender aspen native to North America, Syn. Populus tremuloides, American aspen |
| quaking aspen | (n) Old World aspen with a broad much-branched crown; northwestern Europe and Siberia to North Africa, Syn. Populus tremula, European quaking aspen |