aspen

Từ điển WordNet v3.1 - WordNet Dictionary

noun

any of several trees of the genus Populus having leaves on flattened stalks so that they flutter in the lightest wind
• Hypernyms:
poplar, poplar tree
• Hyponyms:
quaking aspen, European quaking aspen, Populus tremula, American quaking aspen, American aspen,
Populus tremuloides, Canadian aspen, bigtooth aspen, bigtoothed aspen, big-toothed aspen, large-toothed aspen,
large tooth aspen, Populus grandidentata