stipule

Foliaceous back provides fluff , vein is thicker , stipule is damask.

叶背具柔毛, 叶脉较粗,托叶淡红色.

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Stipule A modified leaf found as an outgrowth from the petiole or leaf base.

托叶:由叶柄或叶基部生长出的变态的叶,为发育产生的外部结构.

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