Its “green bottle” is composed of switch grass, pine bark and corn husk.

这种“绿色瓶”是由柳枝稷，松树树皮，玉米糠为原料制成的。

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The bottle is made from switch grass, pine bark, corn husks and other materials.

这个瓶子由柳枝，松树树皮和玉米秸秆以及其他的材料制成。

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The bottle is made from switch grass, pine bark , corn husks and other materials.

这个瓶子由柳枝，松树树皮和玉米秸秆以及其他的材料制成。

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You can use mulch made from bark, pine needles,cottonseed or oak leaves.

VOA: special.2010.06.15

In the western part of the US, pine bark beetles have thrived, partly because of changing temperatures.

BBC: Why are the world's older trees disappearing?

It tested this pine bark-derived molecule to see if it blocked the thrombin receptor and found that it did.

FORBES: Magazine Article

Organic mulches such as wood chips, pine straw or bark have the added benefit of slowly breaking down which adds nutrients to the soil.

CNN: X-rated yards save the environment