stipule

• n. [植] 托叶

来自拉丁语 stipula,草，草梗，来自 PIE*steip,刺，插，扩大形式于 PIE*stei,刺，插，词源同 stipple,sting,stimulus.

stipule (n.)

"small appendage at the base of the petiole of a leaf," 1793, from French stipule, from Latin stipula "stalk (of hay), straw," from PIE *stip-ola-, from root *steip- "to stick, compress" (see stiff (adj.)).

1. 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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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.

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