Spices can come from tree bark like cinnamon, plant roots like ginger, flower buds like cloves.

香料可以由肉桂等植物的树干、姜等的根、四叶草等的花蕾制成。

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To the wind the prevention: early spring old bark, winter destroy sunflower, corn testament, spray pesticide plant high-efficiency.

防治法：早春刮去老树皮，冬季毁灭向日葵、玉米遗株，喷洒高效低毒农药。

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The results showed that most traits of stem bark were benefited from elevated CO2 and reduced with the increase of plant density, whether statistically significant or not.

结果表明，不论是否达到显著水平，树皮厚度、树皮基部横截面积和树皮体积均受到CO2升高的促进作用，但是受到种植密度升高的负作用。

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As with every float, each square centimeter of space must be covered with flowers or other organic material, including moss,seeds, bark and plant fiber.

VOA: standard.2009.12.30

Immediately they did this, however, people started thinking 'Aha, this is a special plant, ' and they climbed over the fence and started to take off little branches and leaves and pieces of bark.

NPR: The Little Coffee Plant that Wouldn't Die