单词exstipulate
adj.: 【植】无托叶的
【植物;植物学】无托叶的
Leaves alternate, usually confered at apex of branchlets, simple, entire, long petiolate, exstipulate.
叶互生，通常在小枝的先端密集，单叶，全缘，具长叶柄，无托叶。
Leaves basal and rosulate, or alternate, rarely whorled, stipulate or exstipulate;
叶基生和莲座状，或互生，很少轮生，具托叶的或无托叶；
Leaves opposite, exstipulate, odd-pinnately compound or simple;
叶对生，无托叶，奇数羽状复叶或单叶；