stipule

1. Of or characterized by cells that have become less differentiated. Stipule A modified leaf found as an outgrowth from the petiole or leaf base.
   退行发育术的细胞退回到未变异状态的或有其特征的托叶：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。
2. 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。
3. Foliaceous each other is unripe, odd a shape compound leaf, without stipule, provide long power;
   叶互生，奇数羽状复叶，无托叶，具长柄；
4. Complete leaf composed of petiole, blade and stipule.
   完全叶由叶柄、叶片和托叶组成。
5. The main results were as follows: 1. Observed a great deal of JWB plantlet, we found that, small leaves, short burl distance, thin stem, more axillary bud, stipule thorn became leaves bigger, is the JWB representative symptom;
   1对枣疯病组培苗的观察结果发现，叶片小，节间距短，茎细，腋芽萌发多，托时刺退化成的小叶大是组培苗发生枣疯病的典型症状；

noun

1. a small leafy outgrowth at the base of a leaf or its stalk