stipule

英 ['stɪpjuːl] 美['stɪpjʊl]

Foliaceous back provides fluff , vein is thicker , stipule is damask.: 叶背具柔毛, 叶脉较粗,托叶淡红色.

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.