Plenty of laticiferous tubes were included in roots, stems and leaves.Intraxylary phloem formed around the pith.
髓的外围形成一
内生韧皮部，这些结构特征使罗布麻能更好的适应干
、
境。
Plenty of laticiferous tubes were included in roots, stems and leaves.Intraxylary phloem formed around the pith.
髓的外围形成一内生韧皮部，这些结构特征使罗布麻能更好的适应干、境。
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