这些维束管在各个小叶基部将成为托叶的维管组织部分。

These bundles will become part of the vascular tissue of the stipels at the base of the individual leaflets.

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托叶完全抱茎的或者有时半抱茎。

Stipules fully amplexicaul or sometimes semiamplexicaul.

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托叶鞘通常具绿色的叶状的翅的先端；叶片5 - 12厘米宽。

Apex of ocrea usually with green leaflike wing; leaf blade 5-12 cm wide.

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