The color of Oil cell, the number of non-glandular hair, leaf-trace bundle and vascular bundle are distinct in micro-character.
而油细胞的颜色，非腺毛、叶迹维管束及维管束的多少则是显微上的主要区别点。
The results showed that: the number of primary branches, secondary branches, and spikelets were closely associated with the number of vascular bundle.
结果表明，维管束数目与一、二次枝梗数及颖花数有密切关系。
There are 2-3 layers of long-column-shaped palisade tissue under the upper epidermis, and there are a great number of mechanical tissues which made up of vascular bundle sheath .
上表皮下方有2-3层长柱形的栅栏组织，在主脉大侧脉外方具有由大量机械组织组成的束帽或束鞘。
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