Bicollateral bundle the arrangement of tissues in the vascular bundles in which the phloem is situated on both sides of the xylem.
是初生木质部的内，外方都有初生韧皮部分布的一种维管束排列方式。
Bicollateral bundle the arrangement of tissues in the vascular bundles in which the phloem is situated on both sides of the xylem.
是初生木质部的内，外方都有初生韧皮部分布的一种维管束排列方式。
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