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1·The smooth white trunk of Populus tremuloides, or “Quaking Aspen, ” hides a secret.

这些树干光滑的美洲山杨，或者叫做“颤杨”有着一个秘密。

2·Quaking aspen trees in California's Sierra Nevada Mountains are resplendent in shimmering foliage and white bark.

树木。白杨树在加利福尼亚州的内华达山脉是灿烂的在闪烁树叶和白色树皮。

3·While Pando isn't technically the oldest individual tree, this clonal colony of Quaking Aspen in Utah is truly ancient.

就单棵树(individual tree)来说Pando并不是最古老的树，但是生长在犹他州的无性系颤杨(Quaking Aspen)确又的确是最古老的。