相较一年生植物、乔木和灌木，进入市场的多年生植物品种相对多一点。

When you look at perennials versus annuals, trees and shrubs, there are more varieties coming into the perennials market.

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这是一种速生的树木和灌木，它的叶子和根系有助于改善土壤。

These are fast-growing trees and shrubs whose leaves and roots help improve soil.

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任一种产于非洲和欧亚大陆的灌木和矮树的柽柳，生有小鳞状叶，开白色、粉红色或红色花朵并形成总状花序。

Any of numerous African and Eurasian shrubs or small trees of the genus Tamarix, having small scalelike leaves and racemes of white, pink, or red flowers.

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