Sedums are plants that need little water and often are used on green roofs.
景天属植物是仅需少量水分，并经常被用在绿色屋顶上的植物。
Sandoms Sedums are plants that need little water and often are used on green roofs.
景天植物是只要很少的水且常常被使用在绿色屋顶上的植被。
Although a few Agaves and Sedums might take a few degrees of frost, they will not tolerate freezing temperatures.
虽然有些龙舌兰和景天属多少能忍耐些轻微的霜降，却并不耐冻。
The researchers say the presence of native plants likely helped all the green roofs capture water better compared to sedums.
研究人员表示，和景天属植物相比，本地植物的存在更能帮助所有的绿色屋顶更好的吸收水分。
The researchers say the presence of native plants likely helped all the green roofs capture water better compared to sedums.
研究人员表示，和景天属植物相比，本地植物的存在更能帮助所有的绿色屋顶更好的吸收水分。
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